Nut Bolt HSN Code – Full List for MS, SS, Studs & Washers
Nut Bolt HSN Code – Full List for MS, SS, Studs & Washers
Every manufacturer, trader, or buyer dealing with fasteners must be aware of the nut bolt HSN code and the correct GST classification for compliance and billing. HSN (Harmonized System of Nomenclature) codes are used to identify goods under GST law in India, and all bolts, nuts, washers, and studs fall under Chapter 73.
This guide provides a complete list of HSN codes for nut bolts in MS (Mild Steel), SS (Stainless Steel), galvanized finish, stud bolts, and spring or flat washers. We also include the GST rate and billing UOM used by suppliers and contractors.
Nut Bolt HSN Code Summary (Chapter 7318)
All metallic fasteners are classified under HSN Chapter 7318:
| Product | HSN Code | Description | GST Rate | UOM |
|---|---|---|---|---|
| MS Bolt & Nut | 73181500 | Iron/Steel bolts/nuts threaded | 18% | KG / 100 pcs |
| SS Bolt & Nut | 73181900 | Other threaded articles (non-alloy) | 18% | KG / pcs |
| Stud Bolts | 73182200 | Threaded rods & studs | 18% | KG / pcs |
| Spring Washer | 73182100 | Spring-type washers | 18% | KG / 100 pcs |
| Flat / Plain Washer | 73182200 | Flat or lock washers | 18% | KG |
HSN codes are mandatory on tax invoices, purchase orders, and e-way bills under Indian GST law.
Common Applications of These Codes
- GST billing on nut bolt purchase/sales
- Transport documentation (e-way bill)
- BOQ and tender descriptions
- GST returns and compliance reports
Tip: Always double-check if your fastener product is alloyed, plated, or galvanized. Some suppliers use Chapter 7220 for high-grade stainless bolts.
FAQs – Nut Bolt HSN Code Explained
What is the HSN code for MS nut bolts?
The HSN code is 73181500. GST rate: 18%.
What is the code for stainless steel bolts?HSN code: 73181900. Use for SS 304/316 fasteners.
What is the GST on fasteners?As of 2025, most metal fasteners are taxed at 18% GST.
Are washers and nuts under the same code?No. Washers are covered under HSN 73182100 / 73182200, while nuts are under 73181500.
What UOM is used in fastener billing?Common UOMs include KG, 100 PCS, and PCS depending on order size and product type.
Related Articles
- Nut Bolt Weight Chart in KG – Download PDF
- Types of Nut and Bolt – Thread & Grade Guide
- Nut and Bolt Sizes – Dimensional Table
- Industrial Nuts and Bolts – Full Guide
Contact Udhhyog – Nut Bolt Exporter & Dealer
If you're looking for GST-compliant fastener supply with HSN invoices, Udhhyog delivers MS and SS bolts, nuts, washers, and threaded rods across India with packing lists, test certificates, and e-way billing support.
Comments : 0