BIS Certification for Bolts, Nuts & Fasteners (ISI Mark)

Let us keep this simple. BIS certification for fasteners is the official approval from the Bureau of Indian Standards (BIS) that lets you put the ISI Mark on your bolts, nuts and screws. That little ISI symbol is the government's way of telling a buyer "this fastener has been tested and genuinely meets the Indian quality standard." Without it, a notified fastener cannot legally be sold in India.

Here is why it matters so much for fasteners specifically: these are tiny parts that hold up enormous things. A single weak bolt in a bridge, a tower or a machine can fail catastrophically. So the government brought 19 fastener products under compulsory certification through the current Bolts, Nuts and Fasteners (Quality Control) Order, 2024 - and for you as a manufacturer, the ISI Mark is now both a legal must-have and the thing that gets you into tenders and serious supply contracts.

This page is deliberately practical. Instead of repeating the legal text, it answers the questions fastener makers actually ask us: Am I covered? Am I exempt? Which of the 19 standards is mine? What does it cost and how long does it take? What do I actually need to get certified? Where you want the deeper detail on the order itself, we point you to the dedicated QCO explainer page.

The simplest way to think about it: if your fastener is on the official notified list of 19 products and you are putting it into the Indian market, you need the ISI Mark. That applies to three groups:

If you are in any of these three groups and your product is on the list, certification is not optional - it is the law, backed by the BIS Act, 2016. Selling a notified fastener without the ISI Mark can lead to fines, seized stock, blocked customs clearance and disqualification from government and infrastructure tenders.

This is the bit almost every other website forgets to tell you, and it can save you a lot of worry. The order itself carves out a few clear exemptions. If you fall into one of these, you may not need certification at all:

The current Bolts, Nuts and Fasteners (Quality Control) Order, 2024 covers 19 distinct fastener products, each mapped to its own Indian Standard. Whatever you manufacture - from a common hexagon bolt to a high-strength structural nut, a transmission tower bolt or a humble door aldrop - it is in this list. Find your product below and open its dedicated certification guide:

Note: as per the order, the latest version of each Indian Standard, including amendments notified by BIS from time to time, applies from the date of such notification. The table above lists 18 product rows mapped to the 2023-originated standards; the 2024 order carries one additional product entry within the same overall scope, which we cover in detail on the dedicated QCO page.

Every manufacturer's first question is what this will actually cost and how long it will take. Here is a realistic, ballpark picture - your exact figure depends on how many products and standards you certify together, so treat this as a planning range, not a quote:

Cost is generally made up of four parts: the BIS application and marking fee, lab testing charges at a BIS-recognised laboratory, the factory-audit fee, and professional consultancy support. Foreign applicants additionally factor in the Authorized Indian Representative (AIR) appointment and overseas factory inspection logistics. Standphill India gives every client a clear, itemised estimate before any work begins, so there are no surprise costs midway through the process.

BIS paperwork is full of jargon. Here is what the most common terms actually mean, in plain words:

Without drowning you in the full process (that lives on our dedicated pages), here is the honest short version of what it takes. Three things have to line up:

• A fastener that passes the test. Your product is tested at a BIS-recognised lab for things like strength, hardness, chemical composition and dimensions - it has to meet its Indian Standard.
• A factory that can prove consistency. A BIS officer visits to check you have the right machinery, an in-house testing setup with calibrated instruments, and documented quality control - i.e. you can make a good fastener every time, not just once.
• Clean, BIS-format paperwork. Company documents, factory layout, machinery and testing lists, quality manual, raw-material details and test reports - all in the exact format BIS expects.

The exact process differs slightly depending on whether you make your fasteners in India or abroad. Rather than repeat it all here, we keep the full step-by-step on dedicated pages - pick the one that fits you:

Choosing the right consultant is the difference between a smooth few-month certification and a year of back-and-forth. Fasteners are a deceptively tricky category - 19 products, overlapping standards, easy-to-miss exemptions and a demanding factory audit. Here is why manufacturers and importers across India and internationally trust Standphill India as their BIS consultant for bolts, nuts and fasteners:

With 20+ years of experience and 10,000+ certifications, we have guided everyone from single-product workshops to multi-standard manufacturers through fastener certification, both within India and for international clients. If you are searching for a dependable BIS certification consultant for fasteners, this is what that looks like. For more on our consultancy, see BIS Certification Consultants in India. For consultant assistance anywhere in the world, contact Standphill India directly.

This guide is maintained by the Standphill India BIS Certification Desk and reviewed periodically against the official Gazette notifications referenced below.

For complete transparency, here are the actual government notifications - the current Bolts, Nuts and Fasteners (Quality Control) Order, 2024 (in force from 17 July 2024, in supersession of the 2023 order) from the Gazette of India, listing every covered fastener and its Indian Standard. You can read it right here or download your own copy: