BIS Certification for Bolts, Nuts and Fasteners in India: Standards, Process, Documents and Product List
Components like bolts, nuts and fasteners are very important and form part of constructions, engineering, infrastructures, automobiles, machines, and electrical works. Despite the seeming insignificance of these components, the quality and strength of such components can directly impact the safety and efficiency of the end product.
In order to achieve this, the government of India has enacted quality control orders (QCOs) for some products, which include the specific bolts, nuts and fasteners.
Bureau of Indian Standards (BIS) is the national body for standardization in India. The product certification scheme requires that manufacturers must have BIS license and also have the ISI Standard Mark before they can sell certain products within the country.
Manufacturers need to know about the relevant Indian standard, the product specifications, the testing requirements and the process of obtaining a license.
UMSPCS assists Indian manufacturers with BIS ISI certification for Bolts, Nuts and Fasteners, including standard identification, documentation, product testing coordination and application support.
What Is BIS Certification for Fasteners?
The BIS certification is a conformity assessment process whereby it is determined whether the requirements of a particular product's Indian Standard are fulfilled.
For products falling within mandatory certification requirements, the manufacturers have to comply with the relevant BIS process before production and/or marketing of that product in India in accordance with the relevant order and the provisions thereof.
As regards bolts, nuts and fasteners, the relevant requirements might include dimensions of the product, material composition, mechanical characteristics of the product and other technical requirements established by the relevant Indian Standard.
The general process usually comprises the following steps:
- Identification of the relevant Indian Standard for the product.
- Analysis of the relevant QCO and the requirements for implementation thereof.
- Preparation of relevant manufacturing and quality control documents.
- Conducting relevant testing of the product.
- Preparing the factory for the relevant inspection/assessment.
- Filing of the BIS application and license formalities.
It is important to understand that not every product designated commercially as a fastener necessarily falls within the same standard or certification requirement.
Indian Standards for Bolts, Nuts and Fasteners
Different types of bolts, nuts, screws and related products are covered by different Indian Standards. Selecting the correct standard is essential because testing requirements and certification procedures may differ by product.
The following is an indicative list of standards associated with the bolts, nuts and fasteners category. Manufacturers should verify the current edition, amendments and certification status through official BIS resources.
| Indian Standard | Product description |
|---|---|
| IS 1363 (Part 1):2019 | Hexagon head bolts, screws and nuts of product grade C — hexagon head bolts |
| IS 1363 (Part 2):2018 | Hexagon head screws |
| IS 1363 (Part 3):2018 | Hexagon nuts of product grade C |
| IS 1364 (Part 1):2018 | Hexagon head bolts of product grades A and B |
| IS 1364 (Part 2):2018 | Hexagon head screws of product grades A and B |
| IS 4621:1975 | Indicating bolts for public baths and lavatories |
| IS 5187:1972 | Flush bolts |
| IS 10238:2001 | Threaded steel step bolts for steel structures |
| IS 12427:2001 | Hexagon head transmission tower bolts |
| IS 3757:1985 | High-strength structural bolts |
| IS 204 (Part 1):1991 | Tower bolts made from ferrous metals |
| IS 204 (Part 2):1992 | Tower bolts made from non-ferrous metals |
| IS 2681:1993 | Non-ferrous metal sliding door bolts |
| IS 281:2009 | Mild steel sliding door bolts |
| IS 7534:1985 | Sliding locking bolts for use with padlocks |
| IS 1284:1975 | Wrought aluminium alloy bolt and screw stock for general engineering purposes |
| IS 15833:2009 | Stainless steel tower bolts |
| IS 6623:2004 | High-strength structural nuts |
This table is an indicative reference, not a definitive list of every regulated fastener. Confirm the current applicable standard, revision, QCO coverage and implementation provisions before relying on any entry.
For the latest official information, manufacturers can consult the BIS Scheme-I product certification list and the BIS Know Your Standard portal.
Products Covered Under the Bolts, Nuts and Fasteners Category
The relevant product range may include the following items, depending on the applicable Indian Standards and regulatory requirements.
A. Bolts
Hexagon head bolts
High-strength structural bolts
Step bolts for steel structures
Transmission tower bolts
Flush bolts
Tower bolts
Stainless steel tower bolts
Sliding door bolts
B. Nuts
Hexagon nuts
High-strength structural nuts
Nuts manufactured to specified product grades
Nuts designed for use with regulated structural fasteners
C. Screws and Related Fasteners
Hexagon head screws
Screws covered by the relevant product standards
Aluminium alloy bolt and screw stock for general engineering applications
Other fastener products covered by applicable Indian Standards
D. Industrial and Infrastructure Fasteners
Fasteners used in steel structures
Fasteners used in transmission towers
Fasteners used in general engineering applications
Fasteners used in industrial installations and infrastructure projects
Manufacturers should not assume that all products in these categories share the same certification requirements. The exact product description, material, dimensions and intended application must be checked against the relevant standard and QCO.
Why Is BIS Certification Important for Fastener Manufacturers?
BIS certification can play an important role in maintaining product quality and meeting applicable regulatory obligations.
Product quality and safety
Fasteners used in structural and industrial applications must meet the technical requirements applicable to their intended use. Conformity assessment helps verify compliance with the relevant product specifications.
Regulatory compliance
Where certification is mandatory, manufacturers must follow the applicable BIS licensing and marking requirements. Selling regulated products without the required approval can result in regulatory consequences.
Customer confidence
Compliance with applicable Indian Standards can help manufacturers demonstrate that their products have undergone the prescribed conformity assessment process.
Business opportunities
Manufacturers that meet applicable certification requirements may be better positioned to serve customers and projects that require compliant products.
Better quality-control practices
The certification process can help manufacturers strengthen their documentation, testing arrangements and internal quality-control systems.
BIS Certification Process for Bolts, Nuts and Fasteners
The procedure depends on the applicable standard and BIS requirements. A typical Scheme-I certification process may involve the following stages.
Step 1: Identify the applicable Indian Standard
The first step is to determine which Indian Standard applies to the product. This requires reviewing the product type, dimensions, material, grade and intended application.
Step 2: Check the applicable QCO
Manufacturers should confirm whether the product is covered by a mandatory Quality Control Order and verify the applicable implementation provisions, exemptions, if any, and current regulatory position.
Step 3: Prepare the application and documents
The manufacturer prepares the required company, factory, product and technical documentation for submission in accordance with BIS requirements.
Step 4: Arrange product testing
Product samples are tested as required under the applicable standard and certification procedure. The relevant testing arrangements depend on the product and the applicable BIS requirements.
Step 5: Factory inspection and assessment
Where required, BIS assesses the manufacturing facility, production process, quality-control arrangements and testing capabilities.
Step 6: Complete the licensing requirements
The application, inspection findings, test results and other required information are reviewed under the applicable procedure. A licence is granted only when BIS is satisfied that the relevant requirements have been met.
Step 7: Maintain compliance after certification
After obtaining the licence, the manufacturer must comply with applicable marking, testing, inspection, renewal and other continuing obligations.
Note: The steps above provide a general overview. Actual requirements, timelines, fees and inspection procedures vary by product and the current BIS scheme.
Documents Generally Required BIS Certification for Bolts, Nuts and Fasteners
The documents required depend on the applicable Indian Standard, the manufacturing facility and the BIS application requirements. Commonly requested documents may include:
Company registration and legal identity documents
Factory address and manufacturing details
Product specifications and technical information
Manufacturing process flowchart
List of manufacturing machinery
List of testing equipment and laboratory facilities
Calibration records for relevant testing equipment
Quality-control procedures and inspection records
Applicable product test reports
Details of raw materials and suppliers, where required
Acceptance of the applicable Scheme of Inspection and Testing
Other declarations and documents requested by BIS
Manufacturers should prepare their documents carefully and ensure that the information submitted matches their actual production and testing arrangements.
Common Challenges Faced by Manufacturers for Bolts, Nuts and Fasteners
Manufacturers sometimes face difficulties while preparing for BIS certification, particularly when the applicable standard or testing requirements are not clear.
Common challenges include:
Selecting an incorrect or outdated Indian Standard
Incomplete application documents
Gaps in in-house testing facilities
Issues with equipment calibration or quality-control records
Product samples failing to meet the applicable requirements
Inadequate preparation for factory inspection
Uncertainty about QCO implementation dates or exemptions
Difficulty understanding licensing, marking and renewal obligations
Early review of the applicable requirements can help manufacturers identify potential gaps and prepare more effectively.
How UMSPCS Helps with BIS ISI Certification for Bolts, Nuts and Fasteners
UMS Product Compliance Services Pvt. Ltd. (UMSPCS) provides consultancy and application support for manufacturers seeking BIS certification in India.
For manufacturers of bolts, nuts and fasteners, support may include:
Initial product and standard applicability assessment
Guidance on applicable BIS certification requirements
Assistance with documentation preparation
Coordination support for product testing
Guidance on factory inspection preparation
BIS application and procedural support
Assistance with post-certification compliance requirements
The scope of support is determined by the product, the applicable standard and the manufacturer's requirements. Certification decisions remain with the Bureau of Indian Standards.
By helping manufacturers understand the process and prepare the necessary information, UMSPCS aims to make regulatory compliance more manageable. Read more also: BIS Certificate for Foreign Manufacture.
Frequently Asked Questions
Is BIS certification mandatory for all bolts, nuts and fasteners?
No blanket assumption should be made for every type of fastener. Mandatory certification depends on the applicable product standard, QCO and its current provisions. Manufacturers should verify the specific product before making a compliance decision.
Which Indian Standards apply to bolts and nuts?
Several standards cover different types of bolts, screws, nuts and related products. Examples include IS 1363, IS 1364, IS 3757, IS 10238 and IS 12427. The correct standard depends on the product specifications and intended application.
Can a manufacturer apply for BIS certification before product testing?
Manufacturers can begin by reviewing the applicable standard and preparing the necessary documents. The prescribed testing and assessment steps must then be completed in accordance with the relevant BIS procedure.
How long does BIS certification take?
There is no single timeline for every product. Processing time depends on factors such as document readiness, testing, inspection, application review and compliance with the applicable requirements.
Can a BIS consultant guarantee certification?
No consultant can guarantee a licence. A consultant can provide procedural guidance and application support, but the manufacturer must meet the applicable requirements and BIS makes the final licensing decision.
Where can manufacturers check the current requirements?
Manufacturers should consult the official BIS product certification information and the Know Your Standard portal.
Conclusion
BIS certification for bolts, nuts and fasteners is an important compliance consideration for manufacturers supplying products covered by India's applicable quality-control requirements. Understanding the correct Indian Standard, preparing the necessary documentation and completing the prescribed testing and assessment process can help manufacturers manage their certification responsibilities more effectively.
Before beginning an application, manufacturers should verify the latest BIS requirements for their specific products rather than relying solely on a general product list.
UMSPCS supports businesses with BIS ISI certification guidance and procedural assistance, helping manufacturers understand the steps involved in meeting applicable Indian Standards.
Need help with BIS ISI certification for your manufactured products?
Visit UMSPCS.in to learn more about certification consultancy and compliance support for Indian manufacturers.
UMSPCS – Your Trusted Partner for BIS Certification.
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