BIS Certification for Bolts, Nuts & Fasteners in India (2026) — Complete Guide to ISI Mark & QCO Compliance

A single bolt failure can collapse a bridge. A substandard nut can cause an industrial accident that shuts down an entire plant. Bolts, nuts, and fasteners may be the smallest components in a structure — but they carry the heaviest responsibility.

That's precisely why the Government of India, through the Bureau of Indian Standards (BIS), has made certification mandatory for these products. Under the Bolts, Nuts, and Fasteners Quality Control Orders of 2023 and 2024, no manufacturer or importer can legally sell fasteners in India without a valid BIS licence and the ISI Mark on their products.

Whether you are a domestic manufacturer, a foreign exporter supplying Indian clients, or an importer — this guide covers everything you need to know to stay compliant, avoid penalties, and win more business.

BIS Certification — also known as ISI Mark Certification — is a mandatory conformity assessment process governed by the Bureau of Indian Standards, a statutory body under the Ministry of Consumer Affairs, Government of India.

For fasteners, it means your product has been tested, inspected, and verified to comply with the applicable Indian Standard (IS). Once certified:

• Your products carry the ISI Mark — India's most trusted quality symbol

• You can legally manufacture, import, and sell fasteners in the Indian market

• Your products become eligible for government tenders and large infrastructure projects

• You gain a significant competitive edge over non-certified competitors

The Government of India issued two major Quality Control Orders covering fasteners:

QCO	Issued By	Implementation Timeline
Bolts, Nuts & Fasteners QCO 2023	Ministry of Commerce & Industry (DPIIT) — 21 July 2023	Large industries & importers: 6 months | Small enterprises: 9 months | Micro enterprises: 12 months
Bolts, Nuts & Fasteners QCO 2024	Bureau of Indian Standards	Extended coverage — additional fastener categories included

Bottom line: If your fasteners fall under the listed IS standards — certification is not optional. It is the law.

BIS has notified specific Indian Standards for different fastener types under the QCOs. Your product must be certified against the relevant IS standard:

Fastener Product	Indian Standard
Hexagon Head Bolts — Grade C (M5 to M64)	IS 1363 Part 1: 2019
Hexagon Head Screws — Grade C (M5 to M64)	IS 1363 Part 2: 2018
Hexagon Nuts — Grade C (M5 to M64)	IS 1363 Part 3: 2018
Hexagon Head Bolts — Grades A & B (M1.6 to M64)	IS 1364 Part 1: 2018
Hexagon Head Screws — Grades A & B (M1.6 to M64)	IS 1364 Part 2: 2018
High Strength Structural Bolts	IS 3757: 1985
Hexagon Head Transmission Tower Bolts	IS 12427: 2001
Step Bolts for Steel Structures	IS 10238: 2001
High Strength Structural Nuts	IS 6623: 2004
Tower Bolts — Ferrous Metals	IS 204 Part 1: 1991
Tower Bolts — Non-Ferrous Metals	IS 204 Part 2: 1992
Stainless Steel Sliding Door Bolts (Aldrops)	IS 15834: 2022
Mild Steel Sliding Door Bolts	IS 281: 2009
Non-Ferrous Metal Sliding Door Bolts	IS 2681: 1993
Sliding Locking Bolts	IS 7534: 1985
Stainless Steel Tower Bolts	IS 15833: 2009
Indicating Bolts — Public Baths & Lavatories	IS 4621: 1975
Flush Bolts	IS 5187: 1972
Wrought Aluminium Alloy Bolt & Screw Stock	IS 1284: 1975

Not sure which standard applies to your product? Our BIS consultants at Standphill India will identify the exact IS standard and QCO applicability for your specific fastener — free of charge during the initial consultation.

The certification process differs slightly for domestic manufacturers versus foreign manufacturers and importers. Here is the complete step-by-step process:

For Domestic Manufacturers:

• Manufacturing unit registration & legal incorporation documents

• Factory layout plan with dimensions and area details

• List of plant & machinery with specifications

• Quality control manual and in-house testing procedures

• Raw material specifications, grades, and supplier details

• Product test reports from a BIS-recognized laboratory

• In-house testing instruments list with calibration certificates

• Authorization letters and undertakings as required by BIS

Additional Requirements for Foreign Manufacturers (FMCS):

• Appointment letter for Authorized Indian Representative (AIR) — mandatory

• AIR's KYC documents and registration details

• Factory location details and overseas inspection readiness

• Product conformity documents from country of origin

• Import/export licence details (if applicable)

✅ Business Benefits	🏆 Competitive Advantages
• Legal compliance — sell freely across India • Qualify for government & PSU tenders • Access to infrastructure project supply chains • No risk of product seizure or fines • Smooth customs clearance without issues	• Build trust with buyers and procurement teams • Command premium pricing over non-certified rivals • Expand into export markets that recognize ISI • Strengthen brand credibility and reputation • Long-term sustainable business growth

With hundreds of BIS certification consultants operating in India, choosing the right partner can make the difference between a 3-month approval and a 12-month ordeal. Here's why manufacturers and importers consistently trust Standphill India:

Q1. Is BIS Certification mandatory for all bolts, nuts, and fasteners in India?

BIS Certification is mandatory for fastener categories specified under the Quality Control Orders of 2023 and 2024. If you are unsure whether your specific product is covered, contact Standphill India for a free product scope assessment.

Q2. What happens if I sell fasteners without BIS Certification?

Selling non-certified fasteners that fall under the QCO is a punishable offence under the BIS Act, 2016. Consequences include monetary fines, seizure of non-certified stock, prohibition from selling in India, and potential criminal prosecution. Non-certified products are also disqualified from all government tenders and infrastructure projects.

Q3. Can foreign manufacturers obtain BIS Certification for fasteners?

Yes. Foreign manufacturers apply under the Foreign Manufacturers Certification Scheme (FMCS). They must appoint an Authorized Indian Representative (AIR) to coordinate with BIS. Standphill India assists foreign manufacturers throughout the complete FMCS process — from AIR appointment to final licence grant.

Q4. How long does the BIS Certification process take?

Typically 3 to 5 months for domestic manufacturers and 4 to 7 months for foreign manufacturers. With expert consultancy support from Standphill India, the process is significantly streamlined and faster.

Q5. What are the costs involved in BIS Certification for fasteners?

Costs include BIS application fees, laboratory testing charges, factory inspection fees, and annual licence renewal fees. The exact cost depends on your product category and number of standards applied for. Contact Standphill India for a detailed, transparent cost estimate specific to your product.

Q6. What is the significance of the ISI Mark on fasteners?

The ISI Mark certifies that the product meets the prescribed Indian Standard for mechanical strength, dimensional accuracy, chemical composition, and safety. Buyers in manufacturing, construction, and infrastructure specifically look for the ISI Mark as a guarantee of product quality and regulatory compliance.

Q7. Does one BIS licence cover multiple sizes of the same fastener?

A single BIS licence can cover multiple sizes within a product category, subject to BIS guidelines. All variants must be tested and must conform to the applicable IS standard. Standphill India will advise on the optimal licensing strategy to cover your full product range cost-effectively.

Q8. What is surveillance and is ongoing compliance required after certification?

Yes. BIS conducts periodic surprise factory inspections and market sample testing after certification. Any changes in raw materials, process, or product specifications must be communicated to BIS immediately. Standphill India provides complete post-certification support to help clients maintain continuous compliance.

BIS Certification for Bolts, Nuts & Fasteners is no longer a choice — it is a legal requirement that directly impacts your ability to sell, grow, and compete in the Indian market.

With the QCOs of 2023 and 2024 now in full force, every manufacturer and importer of notified fastener products must hold a valid BIS Licence and display the ISI Mark. The risks of non-compliance are real: fines, seizures, lost tenders, and serious reputational damage.

With the right consultant by your side, the process is completely manageable. Standphill India has helped thousands of manufacturers — from small enterprises to multinational corporations — obtain BIS certification efficiently, accurately, and without unnecessary delays.

Your BIS certification journey for fasteners can begin today. Let Standphill India lead the way.