CustomsTariffs.com
This directory combines historical reference rows with separately labelled national sources. Read the source title, observation date, printed units and conditions on each entry. National source observations do not establish all measures applicable to a shipment.

United States Customs Tariff for HS Code 731815

Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers

USITC 2026 HTS Revision 19

26,806 official source entries are searchable. Checked 2026-09-22; edition published 2026-09-15.

Printed tariff and statistical lines from this edition, separate from historical WITS averages. Blank duty cells are not a confirmed zero. Review the parent tariff line, general and chapter notes, chapter 99, origin, exclusions, quotas and additional duties. No shipment total or special-rate eligibility is calculated. The edition publication date is not a line-level effective date.

Official schedule and source documentation

Official entries matching 731815

7318.15.20

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers:

Bolts and bolts and their nuts or washers entered or exported in the same shipment

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
3.5%
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.10

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment

Having shanks or threads with a diameter of less than 6 mm

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.20

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more:

Track bolts

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.30

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more:

Structural bolts

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.41

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Bent bolts:

Right-angle anchor bolts

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.46

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Bent bolts:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.51

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › With round heads:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.55

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › With round heads:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.61

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › With hexagonal heads:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.65

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › With hexagonal heads:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.91

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › Other:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.20.95

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Bolts and bolts and their nuts or washers entered or exported in the same shipment › Having shanks or threads with a diameter of 6 mm or more: › Other: › Other:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.20 — read its printed duties and notes

Bolts and bolts and their nuts or washers entered or exported in the same shipment

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 3.5%
Open parent line in the official schedule
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.40.00

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers:

Machine screws 9.5 mm or more in length and 3.2 mm or more in diameter (not including cap screws)

Source units: kg

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
2.2¢/kg
Source notes and context notes
  • Columns: other — See 9903.90.09.
Official source for this code

7318.15.50

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers:

Studs

Column 1 — General
Free
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
45%
Official source for this code

7318.15.50.30

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Studs

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.50 — read its printed duties and notes

Studs

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.50.51

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Studs › Other: › Continuously threaded rod:

Of alloy steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.50 — read its printed duties and notes

Studs

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.50.56

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Studs › Other: › Continuously threaded rod:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.50 — read its printed duties and notes

Studs

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.50.90

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Studs › Other:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.50 — read its printed duties and notes

Studs

  • Column 1 — General: Free
  • Column 1 — Special (eligibility required): No amount printed.
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.60

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other:

Having shanks or threads with a diameter of less than 6 mm

Column 1 — General
6.2%
Column 1 — Special (eligibility required)
Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
45%
Official source for this code

7318.15.60.10

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of less than 6 mm › Socket screws:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.60 — read its printed duties and notes

Having shanks or threads with a diameter of less than 6 mm

  • Column 1 — General: 6.2%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.60.40

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of less than 6 mm › Socket screws:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.60 — read its printed duties and notes

Having shanks or threads with a diameter of less than 6 mm

  • Column 1 — General: 6.2%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.60.70

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of less than 6 mm › Other:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.60 — read its printed duties and notes

Having shanks or threads with a diameter of less than 6 mm

  • Column 1 — General: 6.2%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.60.80

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of less than 6 mm › Other:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.60 — read its printed duties and notes

Having shanks or threads with a diameter of less than 6 mm

  • Column 1 — General: 6.2%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other:

Having shanks or threads with a diameter of 6 mm or more

Column 1 — General
8.5%
Column 1 — Special (eligibility required)
Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2
45%
Official source for this code

7318.15.80.20

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more

Set screws

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.30

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Socket screws:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.45

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Socket screws:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.55

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Other: › With hexagonal heads:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.66

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Other: › With hexagonal heads: › Other:

Cap screws

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.69

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Other: › With hexagonal heads: › Other:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.82

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Other: › Other:

Of stainless steel

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code

7318.15.80.85

Screws, bolts, nuts, coach screws, screw hooks, rivets, cotters, cotter pins, washers (including spring washers) and similar articles, of iron or steel: › Threaded articles: › Other screws and bolts, whether or not with their nuts or washers: › Other: › Having shanks or threads with a diameter of 6 mm or more › Other: › Other: › Other:

Other

Source units: kg

Column 1 — General
No amount printed on this row; not a confirmed zero.
Column 1 — Special (eligibility required)
No amount printed on this row; not a confirmed zero.
Column 2
No amount printed on this row; not a confirmed zero.
Parent tariff line 7318.15.80 — read its printed duties and notes

Having shanks or threads with a diameter of 6 mm or more

  • Column 1 — General: 8.5%
  • Column 1 — Special (eligibility required): Free (A*,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
  • Column 2: 45%
Open parent line in the official schedule
Official source for this code
WITS 2023 historical MFN average

Reported average: 2.94000005722046%.

Source year: 2023. Classification: HS 2022 (H6). Checked 2026-09-14.

National lines included: 5 of 5. Excluded from the average: 0.

Reported ad-valorem range: 0%–8.5%.

Reported historical ad-valorem MFN simple average for 2023, not a national tariff schedule. No preferential rates, additional duties, VAT, excise or import permissions are determined.

Not a current 2026 national duty. The HS6 average does not determine the duty of a particular national subdivision, origin or shipment.

WITS observation for this code and year

UN Comtrade H6 descriptions (HS 2022)

WITS API definitions: reported averages and excluded national lines

Direct HS code answer for United States

United States HS Code 731815: 2.94% (2023 MFN average)

The source reports an indicative HS6 MFN average of 2.94% (2023 MFN average) for Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers.Source status: not assessed. Verify the exact national tariff line, origin treatment, taxes, restrictions, and current customs guidance before using this information in a declaration.

Browse chapter 73Search parent HS 731815Request import report

Customs tariff summary

Country
United States
HS / tariff code
731815
Description
Iron or steel; threaded screws and bolts n.e.c. in item no. 7318.1, whether or not with their nuts or washers
Chapter
73 —
Heading
7318
Subheading
731815
Indicative MFN HS6 average
2.94% (2023 MFN average)
VAT / tax
Check local VAT and excise rules for the import destination.
Unit / basis
Not listed in this tariff line
Source / vintage
WITS / UNCTAD TRAINS — 2023 MFN HS6 reference

Historical MFN average

2.94% (2023 MFN average)

Import permission

not assessed

Import planning

Need a landed cost report for this HS code?

Request a one-page research summary with source checks, landed-cost inputs, and points to verify for HS code 731815 in United States.

Get report

Details

HS Code
731815
Chapter
73 —
Heading
7318
Subheading
731815

Compare HS code 731815 across GCC countries

Each destination shows its own source label. Oman uses its national schedule; Qatar and UAE entries may cite their separately published references and unresolved exceptions. Other entries retain the historical GCC reference. National codes, duty notes, restrictions and tax treatment can differ; verify with the destination customs authority.

Saudi ArabiaSearch parent HS 731815United Arab EmiratesSearch parent HS 731815OmanSearch parent HS 731815QatarSearch parent HS 731815KuwaitSearch parent HS 731815BahrainSearch parent HS 731815

Related HS Codes (Heading 7318)

HS CodeDescriptionDuty
731811Iron or steel; threaded coach screws12.50% (2023 MFN average)WITS 2023 historical MFN average
731812Iron or steel; threaded wood screws other than coach screws12.50% (2023 MFN average)WITS 2023 historical MFN average
731813Iron or steel; threaded screw hooks and screw rings5.70% (2023 MFN average)WITS 2023 historical MFN average
731814Iron or steel; threaded self-tapping screws7.40% (2023 MFN average)WITS 2023 historical MFN average
731816Iron or steel; threaded nuts0.00% (2023 MFN average)WITS 2023 historical MFN average
731819Iron or steel; threaded screws, bolts and nuts n.e.c. in item no. 7318.15.70% (2023 MFN average)WITS 2023 historical MFN average
731821Iron or steel; non-threaded spring washers and other lock washers5.80% (2023 MFN average)WITS 2023 historical MFN average
731822Iron or steel; non-threaded washers, excluding spring and lock0.00% (2023 MFN average)WITS 2023 historical MFN average
731823Iron or steel; non-threaded rivets0.00% (2023 MFN average)WITS 2023 historical MFN average
731824Iron or steel; non-threaded cotters and cotter-pins3.80% (2023 MFN average)WITS 2023 historical MFN average
731829Iron or steel; non-threaded articles, n.e.c. in item no. 7318.22.80% (2023 MFN average)WITS 2023 historical MFN average

Data source: WITS/UNCTAD TRAINS (MFN 2022). Values are indicative HS6 MFN averages, not shipment-specific applied rates. Import permission and restrictions are not assessed. Historical reference rates exclude VAT, excise and other national measures. Separate national entries preserve the columns printed by their source; these are not a complete shipment assessment. Full disclaimer.