Hexagon head bolts (Grade C) are commonly used fasteners in construction,
machinery, and general engineering applications where moderate strength is required.
These bolts are designed to provide secure fitting and support in structures, making
them an important component in many industries.
To ensure that these bolts meet the required quality and safety standards, the Bureau of Indian Standards provides BIS certification as per the Indian Standard IS 1363 (Part 1): 2019. This certification confirms that the bolts are manufactured according to specified dimensions, material quality, and performance requirements.
what is is 1363 (part 1): 2019
requirements.IS 1363 (Part 1): 2019 is the Indian Standard for hexagon head bolts of Grade C, which
are widely used in construction, fabrication, and general engineering work. This
standard is defined by the Bureau of Indian Standards to ensure that the bolts are
manufactured with proper dimensions, material quality, and basic performance
requirements for safe use in different applications.
This standard ensures that the bolts are:
- Properly sized and threaded for easy and secure fitting
- Strong enough for general-purpose applications
- Made from suitable materials for durability
- Consistent in shape, size, and finish
- Reliable for use in construction and machinery work
- Suitable for everyday industrial and structural use
Testing and Inspection Requirements for Hexagon Head Bolts
To ensure proper strength, fitting, and overall quality of hex bolts, the Bureau of Indian
Standards has defined clear testing and inspection requirements under IS 1363 (Part 1):
201 which are carried out during manufacturing to make sure the bolts perform reliably
in construction and engineering applications.
What are R and S
- R (Required): Test must be conducted in the manufacturer’s own laboratory
- S (Subcontracting Allowed): Test can be done in a BIS-approved external
laboratory
Physical and Dimensional Checks
- Dimensions (R) – Ensures correct size, length, and diameter as per standard
- Thread Accuracy (R) – Checks proper threading for secure fitting
- Tolerances (R) – Ensures allowed variation limits are maintained
Material and Mechanical Tests
- Raw Material Quality (S) – Confirms material meets required standards
- Mechanical Properties (R) – Checks strength, hardness, and durability of bolts
- Impact and Strength Testing (R) – Ensures bolts can handle load and stress
Surface Finish and Coating Tests
- Coating/Finish Check (R) – Verifies surface condition like electroplating or
galvanizing
- Corrosion Resistance Test (R) – Ensures protection against rust and
environmental damage
Performance and Strength Checks
- Load Bearing Capacity (R) – Ensures bolts can handle required mechanical
load
- Tensile Strength Test (R) – Checks resistance to breaking under tension
- Hardness Test (R) – Ensures proper hardness for long-term performance
process of bis certification
The BIS certification process for Hexagon Head Bolts, Screws and Nuts of product Grade C Hexagon Head Bolts (Size Range M 5 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 the product, confirming compliance with the
standard.
Documents Required for IS 1363 (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
|
Foreign manufacturers must additionally appoint an Authorized Indian Representative
(AIR) to coordinate with the Bureau of Indian Standards (BIS) and manage compliance
requirements in India
Marking Requirements & License Validity
Marking Requirements
When a manufacturer obtains the BIS license, the ISI mark for hexagon bolts 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 1363
|
| 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 hexagon bolts
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.
| articulars | 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. |
conclusion
BIS certification for hexagon head bolts (Grade C), as per IS 1363 (Part 1): 2019,
ensures that the bolts meet the required standards of size, strength, and overall quality
for safe use in construction and general engineering applications. It also ensures that
the bolts are properly tested for dimensions, material quality, and mechanical
performance before being used in real-world conditions.
With the support and guidance of an experienced BIS consultant like EVTL India,
manufacturers can complete the certification process smoothly, avoid compliance
issues, and achieve faster approval for selling their products in the Indian market.
