Hexagon head bolts, screws, and nuts are basic fastening products used to join and
hold different parts together in machines, buildings, and equipment. They are very
commonly used in construction, automotive, and engineering work because they are
easy to tighten and provide strong and secure fixing. These fasteners help keep
structures stable and parts properly connected.
To ensure that these fasteners are made correctly and work properly, the Bureau of Indian Standards provides BIS certification as per the Indian Standard IS 1364 (Part 1):2018. This certification ensures that these fasteners follow proper size, threading, and strength requirements for effective use.
what is is 1364 (part 1): 2023
This is the Indian Standard for hexagon head bolts, screws, and nuts, which are
commonly used for joining parts in construction, machinery, and engineering
applications. It is a standard set by the Bureau of Indian Standards to ensure that these
fasteners are made properly and work effectively in different use cases.
This standard ensures that the fasteners are:
- Made with correct size and dimensions
- Provided with proper threading for secure fitting
- Strong enough to hold parts firmly together
- Suitable for use in different applications
- Free from defects like cracks or improper finishing
- Consistent in shape, size, and manufacturing standards
Testing and Inspection Requirements for hexagon head bolts
To ensure proper functioning, strength, and consistency of these fasteners, the Bureau
of Indian Standards has defined clear testing and inspection requirements during
manufacturing.
What are R and S
- R (Required): Test must be done in the manufacturer’s own laboratory
- S (Subcontracting Allowed): Test can be done in a BIS-approved or external
laboratory
Physical and Quality Tests
- Dimensions Check (R) – Ensures correct size, shape, and measurements of
bolts
- Threads and Tolerances (R) – Checks proper threading and fitting accuracy
- General Requirements (R) – Verifies basic design and standard specifications
Material and Mechanical Tests
- Material Properties (S)—Confirms strength and properties of raw material (can
be based on test certificate)
- Mechanical Properties (R) – Checks tensile strength, hardness, and
load-bearing capacity
Surface and Finish Tests
- Coating/Finish Check (R) – Ensures proper surface coating like electroplating
or galvanizing
- Surface Condition (R) – Checks protection against rust and wear
Performance and Strength Tests
- Thread Performance (R) – Ensures smooth tightening and proper fitting
- Load and Strength Tests (R) – Checks how much load the bolt can handle without failure
- Surface Integrity Test (R) – Ensures no cracks or defects in the bolt
process of bis certification
The BIS certification process for Hexagon Head Bolts, Screws and Nuts of product Grades A and B – Hexagon Head Bolts (Size Range M 1.6 To M 64) involves multiple steps, designed to thoroughly evaluate a product's compliance with the required standards. Here is a general overview of the certification process:
- Online Registration: Manufacturers register on the BIS Manak Online Portal by submitting company
details, factory information, and product specifications. Foreign manufacturers
must appoint an Authorized Indian Representative (AIR) in India.
- Testing at BIS-Approved Laboratory: Product samples are tested in BIS-approved laboratories to evaluate electrical
safety, insulation resistance, heating efficiency, durability, and overall
performance as per requirements.
- Application Submission: The application is submitted along with laboratory test reports, technical
documents, manufacturing process details, and factory information. Foreign
manufacturers must also provide AIR-related documents.
- Factory Inspection: BIS officials conduct an on-site inspection of the manufacturing unit to verify
production processes, quality control systems, safety measures, and compliance
with the standard.
- Grant of BIS License:
If all requirements are successfully met, BIS issues the certification license under
Scheme-I, allowing the manufacturer to produce and sell certified products.
- Use of ISI Mark:
After certification approval, the manufacturer is permitted to use the ISI mark
along with a CM/L number on mineral filled sheathed heating elements,
confirming compliance with the standard.
Documents Required for IS 1364(part 1) Certification
The following documents are typically required for obtaining BIS Certification:
| Basic Details | - GST Certificate
- Email ID & Contact Number
- Factory & Office Address
- Rent Agreement / Lease Deed (if applicable)
|
| Legal Documents | - Partnership Deed (if partnership firm)
|
| Manufacturing Details | - List of machinery
- Process flow chart
- Layout Plan of Factory
|
| Raw Material Details | - List of Raw Materials
- Supplier Details
- Raw Material Invoices
- Raw Material Test Certificates
|
| Testing & Quality Control | - List of Testing Equipment
- Calibration Certificates
- QC / Lab In-charge Appointment Letter & Qualification
|
| Production Details | - Annual Installed Capacity
- Last Year Production Value
|
| Product & Packaging Details | - Quantity per Package
- Nature of Packing
- Nature of Printing / Marking on Product
|
| Management Details | - Top Management Details
- Concerned Person for BIS Communication
|
| Brand & Certification Documents | - Trademark / Brand Certificate
- Consent Letter from BIS Recognized Laboratory
|
| Additional Documents | - Weekly Off Details
- Hygiene Document (if applicable)
- Relaxation Letter (if applicable)
- Any Other Relevant Document
|
Marking Requirements & License Validity
Marking Requirements
When a manufacturer obtains the BIS license, the ISI mark for hex bolts and screws
must be applied clearly and permanently on the product or its packaging. In addition to
the ISI Mark, other important details must also be provided on the product or packaging,
as specified in the table below. This ensures the product meets all quality and safety
standards.
| Requirement | Details |
|---|
| ISI Mark | Indicates that the product is BIS certified and follows to the standard |
| Standard Number | IS 1364 |
| CML Number | Certification Marks Licence (CML) number issued by BIS |
| Manufacturer Details | Name of manufacturer or registered trademark |
| Batch / Date | Batch number, heat number, or manufacturing date for traceability |
Note:
Marking is typically applied using durable stamping, tagging, or permanent printing to
ensure clear identification during handling, storage, and transportation, as per BIS
marking requirements.
Validity of BIS licenses for fasteners
After obtaining BIS certification for the product, the license is valid for a fixed period and
must be maintained by following BIS rules and standards.
| Particulars | Details |
|---|
| Initial Validity | Typically 1 to 2 years, depending on BIS approval conditions |
| Renewal | Must be renewed before expiry by submitting the application along with the prescribed fee and updated documents |
| Surveillance | Includes periodic factory inspections and market sample testing conducted by BIS |
| Compliance | Continuous following to standard and applicable Quality Control Orders (QCOs) is mandatory |
| Risk | Non-compliance or failed sample testing may lead to suspension or cancellation of the BIS license |
cOST AND TIMELINE OF CERTIFICATION
The cost of BIS certification includes charges for application, inspection, license, testing,
and marking. These fees are paid to BIS as per Scheme I guidelines.
Cost Breakdown
Indian Manufacturers
| No. | Major Charges | Particulars | Amount | Remark |
| 1 | BIS Fees | Application Fee | INR 1,000 | — |
|
| Audit / Inspection Fee | INR 7,000 | — |
|
| License Fee | INR 1,000 | — |
|
| Marking Fee | Depends on product | Discount as per MSME |
| 2. | Testing Charges | Sample Testing Fee | As Applicable | Payable to a BIS-approved laboratory. |
| 3. | EVTL India Service Fee | Consultancy & Support | As per actual | Depends on product type and factory location. |
Foreign Manufacturers
| No. | Major Charges | Particulars | Amount | Remark |
| 1. | BIS Fees | Application Fee | USD 15 | Payable via SWIFT to BIS. SAARC countries can pay INR with 18% GST. |
|
| Audit Charges | USD 3,200 – 5,900 | Depend on Country |
|
| License Fee | USD 15 | — |
|
| Marking Fee | Depends on product | — |
| 2. | Testing Charges | Sample Testing Fee | As Applicable | Payable to a BIS-approved laboratory. |
| 3. | EVTL India Service Fee | Consultancy & Support | As per actual
| Based on product and manufacturing location. |
to know the process in detail, please visit:
Under BIS Registration Products ISI and CRS
conclusion
The BIS certification for hexagon head bolts, screws, and nuts, as per IS 1364 (Part
1):2023, ensures that the product must meet the required standards for proper fitting
and use in different applications. It also ensures that the fasteners must go through
various tests such as dimension checks, thread accuracy, material strength, and surface
finish to confirm they perform well in real working conditions.
With the support and guidance of an experienced BIS consultant like EVTL India,
manufacturers can complete the certification process smoothly, avoid mistakes, and get
faster approval.
