HSN Code Finder · Product
Nut Bolt HSN Code 7318
Nuts and bolts of iron or steel are classified under HSN heading 7318, which covers screws, bolts, nuts, washers and similar threaded fasteners. Bolts (with or without their nuts) and nuts sold separately have distinct tariff items.
Nut Bolt HSN codes & GST rates
The 8-digit HSN codes under heading 7318 (screws, bolts, nuts, coach-screws, screw hooks, rivets, cotters, cotter-pins, washers (including spring washers) and similar articles, of iron or steel). Click any code for the full duty stack, IGST schedule and FTA preferential rates.
| HSN code | Description | IGST | BCD |
|---|---|---|---|
| 73181500 | Other screws and bolts, whether or not with their nuts or washers | 18% | 15% |
| 73181600 | Nuts | 18% | 15% |
| 73181400 | Self-tapping screws | 18% | 15% |
| 73181110 | Machine screws | 18% | 15% |
FTA preferential rates: 10 partner agreement(s) listed for 73181500; best preferential rate 0% via Least Developed Countries; 6 partner(s) at 0%. See full FTA breakdown →
What is the HSN code for nut bolt?
The HSN code for nut bolt is 7318 at the 4-digit heading level. For GST invoicing and customs filing you generally need the full 8-digit tariff item — for nut bolt the most common is 73181500, which attracts 18% IGST.
HSN (Harmonized System of Nomenclature) codes are India's standardised product-classification system used for both GST and customs. The first 2 digits are the chapter, 4 digits the heading, 6 digits the international subheading and 8 digits the India-specific tariff item. Always confirm the exact 8-digit code for your specific variant, and verify the rate against the latest CBIC/DGFT notification before filing.
How nut bolt is classified under HSN
The HSN classification for nut bolt narrows down level by level — from the broad section to the specific 8-digit tariff item used on your invoice and Bill of Entry.
- Chapter 732-digitArticles of iron or steel
- 73184-digit headingSCREWS, BOLTS, NUTS, COACH-SCREWS, SCREW HOOKS, RIVETS, COTTERS, COTTER-PINS, WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES, OF IRON OR STEEL
- 7318156-digit subheadingSCREWS, BOLTS, NUTS, COACH-SCREWS, SCREW HOOKS, RIVETS, COTTERS, COTTER-PINS, WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES, OF IRON OR STEEL
- 731815008-digit tariff itemOther screws and bolts, whether or not with their nuts or washers
Section XV — BASE METALS AND ARTICLES OF BASE METAL
GST on nut bolt
Nut Bolt (HSN 7318) attracts 18% GST under GST Schedule II. On a sale within the same state this is charged as 9% CGST + 9% SGST; on an inter-state sale or an import it is charged as a single 18% IGST. This is the rate recorded for the primary code 73181500 — other variants in the table above can carry different rates, so match your exact product and verify against the latest CBIC GST rate notification.
Customs duty on imported nut bolt
When nut bolt (HSN 73181500) is imported into India, the duty stack is approximately: Basic Customs Duty (BCD) 15%, AIDC 15%, Social Welfare Surcharge on the aggregate of customs duties, plus IGST 18% on the assessable value plus duties.
Indicative total duty on ₹100 of assessable value: ₹40.3905. This is an estimate — the actual amount depends on valuation, exemptions and the notifications in force on the date of import.
See the full duty breakdown for 73181500 →Conclusion
The HSN code for nut bolt is 7318 at the heading level, with 73181500 the most commonly used 8-digit tariff item (18% GST). Always pick the 8-digit code that matches your exact product variant from the table above, and confirm the GST rate and customs duty against the latest CBIC/DGFT notifications before invoicing or filing a Bill of Entry.
Nut Bolt HSN Code — FAQs
HSN code 73181500 (Nut Bolt) attracts 18% IGST under Schedule II of the GST notification.
The Basic Customs Duty (BCD) for HSN code 73181500 is 15%. On import, the landed duty also adds Social Welfare Surcharge (on BCD) and IGST (on the duty-inclusive value).
HSN code 73181500 covers Nut Bolt. It sits under Chapter 73 – Articles of iron or steel, in Section XV – BASE METALS AND ARTICLES OF BASE METAL.
The HSN code for Nut Bolt is 73181500, classified under Chapter 73 – Articles of iron or steel of India's Customs Tariff (ITC-HS).
The standard unit of quantity (UQC) for HSN code 73181500 is kg, as listed in the Customs Tariff.
Bolts and screws other than wood/self-tapping types — with or without their nuts or washers — fall under 73181500. Nuts supplied separately are 73181600, self-tapping screws 73181400 and machine screws 73181110.
Yes — heading 7318 covers fasteners of iron or steel including stainless steel. Fasteners of copper fall under heading 7415 and of aluminium under 7616 instead.
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