BIS Certification for Hexagon Head Bolts – IS 1363 (Part 1)

Introduction

Hexagon Head Bolts are widely used fastening components in construction, engineering, automobile manufacturing, machinery, fabrication, industrial equipment and structural applications. Their six-sided head allows tightening with a suitable wrench or socket, making them suitable for applications where a reliable and secure mechanical connection is required.

IS 1363 (Part 1):2023 specifies requirements for Hexagon Head Bolts in the size range M5 to M64, belonging to Product Grade C. The current standard is the sixth revision and is aligned with ISO 4016:2022.

BIS currently lists this product under the Bolts, Nuts and Fasteners category in its Scheme-I product certification framework. The applicable regulatory framework includes the Bolts, Nuts and Fasteners (Quality Control) Order, 2023, as amended/supplemented by the 2024 Order.

For manufacturers of Hexagon Head Bolts, understanding the standard, product grouping, testing requirements and BIS application process is therefore important before applying for a BIS licence.

About Hexagon Head Bolts

A Hexagon Head Bolt is a mechanical fastening component with a six-sided head and an externally threaded shank.

The hexagonal head provides a convenient surface for applying torque with:

Spanners
Wrenches
Sockets
Torque tools

Hexagon Head Bolts are available in different:

Thread sizes
Lengths
Property classes
Materials
Surface conditions
Coatings

IS 1363 (Part 1):2023 specifically covers M5 to M64 Hexagon Head Bolts of Product Grade C.

What is IS 1363 (Part 1):2023?

IS 1363 (Part 1):2023 is titled:

Hexagon Head Bolts, Screws and Nuts of Product Grade C – Part 1 Hexagon Head Bolts (Size Range M5 to M64).

The standard specifies the characteristics and requirements for Hexagon Head Bolts made from steel, having metric coarse-pitch threads from M5 through M64 and Product Grade C.

The current BIS Product Manual identifies:

Product Grade: C
Thread Size Range: M5 to M64
Property Class: 4.6 / 4.8 / as declared by manufacturer
Sample Size: 6 bolts

Size Range Covered

The standard covers:

M5 to M64

This means manufacturers producing Hexagon Head Bolts within this metric coarse-thread size range can seek certification according to the applicable requirements and licence scope.

The exact sizes included in a manufacturer's licence depend on the applicable product grouping and the manufacturer's approved scope.

Product Grade

IS 1363 (Part 1):2023 covers:

Product Grade C

Grade C is intended for general-purpose fastening applications where the dimensional and performance requirements specified by the standard are applicable.

The manufacturer should clearly define the applicable product grade and property class while preparing the product documentation.

BIS Certification for Hexagon Head Bolts

BIS Certification confirms that the manufacturer's product has been assessed against the applicable Indian Standard.

IS 1363 (Part 1) is currently included by BIS under Scheme-I in the Bolts, Nuts and Fasteners category. BIS's current listing identifies the product as Hexagon Head Bolts, Size Range M5 to M64 and links it to the applicable Quality Control Orders.

The certification process generally involves:

Product assessment
Product grouping
Documentation
Sample testing
Factory assessment
Quality-control verification
BIS scrutiny
Test report evaluation
Licence grant

After certification, the manufacturer must use the BIS Standard Mark in accordance with the licence conditions.

Applicable Quality Control Order

Hexagon Head Bolts under IS 1363 (Part 1) fall within the Bolts, Nuts and Fasteners regulatory framework.

BIS's current Scheme-I listing identifies IS 1363 (Part 1):2019 in the applicable product list and associates it with the Bolts, Nuts and Fasteners (Quality Control) Order, 2023 and 2024.

The current Indian Standard has subsequently been revised to IS 1363 (Part 1):2023. BIS's current standard database identifies the 2023 version as Active.

Manufacturers should therefore verify the latest BIS/QCO requirements applicable to their product before making an application.

Products Covered

The product covered is:

Hexagon Head Bolts

within the applicable:

M5 to M64 size range
Product Grade C
Applicable property classes
Applicable surface conditions
Applicable finishes/coatings

The final licence scope depends on the product grouping and approved manufacturing/testing capability.

Applications of Hexagon Head Bolts

Hexagon Head Bolts are commonly used in:

Automobile manufacturing
Industrial machinery
Construction equipment
Engineering industries
Fabrication
Agricultural machinery
Industrial equipment
Structural assemblies
Manufacturing plants
Mechanical assemblies
General engineering
Maintenance applications

Their hexagonal head makes them convenient for applications requiring controlled tightening and removal.

Dimensions

Dimensional conformity is one of the important requirements for Hexagon Head Bolts.

Depending on the applicable requirements, dimensional inspection can cover:

Nominal diameter
Bolt length
Head dimensions
Head height
Width across flats
Thread length
Thread diameter
Other specified dimensions
Dimensional tolerances

The current BIS Product Manual identifies Dimensions as a specific testing requirement under the standard.

Thread Requirements

The threaded portion must comply with the applicable requirements of the standard.

Thread-related inspection can include:

Thread size
Thread profile
Thread pitch
Thread tolerance
Thread gauge inspection
Thread condition

BIS laboratory information identifies Thread as one of the applicable testing areas for IS 1363 Part 1.

Mechanical Properties

Mechanical properties are important because Hexagon Head Bolts must withstand the loads experienced during fastening and service.

The applicable evaluation can include:

Tensile properties
Proof load
Hardness
Strength-related characteristics
Other applicable mechanical requirements

The current BIS Product Manual identifies 4.6 / 4.8 / as declared by manufacturer as the property-class scope for the product.

Surface Condition

The surface condition of the bolt should comply with the applicable requirements.

The evaluation may consider:

Surface appearance
Defects
Corrosion-related issues
Manufacturing marks
Surface discontinuities

BIS laboratory information includes Surface Condition among the applicable testing areas.

Surface Integrity

Surface integrity is particularly important for fasteners because cracks and other defects can negatively affect performance.

Possible defects that need attention include:

Cracks
Seams
Laps
Folds
Tool marks
Other unacceptable surface discontinuities

The BIS testing information identifies Surface Integrity as a separate testing area.

Tolerances

Manufacturing tolerances must be maintained within the applicable limits specified by the standard.

This can involve:

Dimensional tolerances
Thread tolerances
Head tolerances
Length tolerances
Other applicable manufacturing tolerances

BIS laboratory information specifically lists Tolerances among the testing requirements.

Surface Finish and Coating

Hexagon Head Bolts may be supplied with different surface finishes or protective coatings.

Depending on the product specification, this can include:

Electrolytic zinc coating
Other applicable protective finishes
Uncoated surface condition

The applicable finish should be clearly identified in the product specification and certification scope.

Raw Materials

Suitable steel raw material should be selected to achieve the required dimensional and mechanical characteristics.

Manufacturers should maintain proper control over:

Raw-material specifications
Material certificates
Heat numbers
Batch identification
Incoming inspection
Material traceability

Raw-material requirements should be verified against the latest applicable standard and the manufacturer's declared property class.

Manufacturing Process

A typical Hexagon Head Bolt manufacturing process can include:

Raw Material Selection

Suitable steel wire/rod is selected.

Wire Preparation

The raw material is prepared according to the manufacturing process.

Heading

The hexagonal bolt head is formed.

Thread Formation

Threads are produced through rolling or another suitable manufacturing process.

Heat Treatment

Where applicable, heat treatment is carried out to achieve the required mechanical properties.

Surface Treatment

The bolt may undergo cleaning, coating or finishing.

Inspection

Dimensions, threads, surface condition and appearance are checked.

Testing

Representative samples are tested against applicable requirements.

Packing

The finished bolts are identified and packed appropriately.

Testing Requirements

Testing and evaluation can cover:

Dimensions
General requirements
Thread
Mechanical properties
Tolerances
Surface condition
Surface integrity
Acceptability
Marking and labelling
Designation

Current BIS LIMS information lists these testing areas for the active IS 1363 Part 1 product entry.

BIS Laboratory Testing

BIS LIMS currently lists laboratories providing testing facilities for IS 1363 Part 1:2023.

For example, one current listing shows a testing charge of ₹14,000 excluding taxes for a specified complete scope. Another laboratory listing shows ₹15,000 excluding taxes for testing up to M33 size.

Individual testing charges may vary depending on:

Laboratory
Product size
Testing scope
Property class
Surface condition
Applicable requirements

Therefore, the final testing cost should be confirmed for the exact product scope before submitting samples.

Sample Requirement

The current BIS Product Manual specifies:

Sample Size: 6 Bolts

for IS 1363 (Part 1):2023.

The actual sampling procedure should always be confirmed against the latest BIS Product Manual and applicable certification instructions.

Product Grouping

Product grouping is an important part of BIS certification because a manufacturer may produce multiple:

Sizes
Property classes
Surface conditions
Finishes

The current Product Manual provides product grouping guidelines under Annex A.

Proper grouping can help determine which representative samples need to be tested for a particular licence scope.

Manufacturers should not assume that testing one size automatically covers every size and variant. The applicable BIS grouping requirements should be followed.

Who Needs BIS Certification?

The certification requirements may apply to manufacturers producing Hexagon Head Bolts covered by the applicable regulatory framework.

This can include:

Fastener manufacturers
Bolt manufacturers
Industrial fastener manufacturers
Automobile component manufacturers
Engineering component manufacturers
OEM suppliers
Hardware manufacturers
Machinery component manufacturers
Manufacturers supplying bolts to industrial customers

Importers and other businesses should separately verify their obligations under the applicable QCO.

Eligibility Requirements

A manufacturer should generally have suitable:

Manufacturing premises
Heading machinery
Threading machinery
Heat-treatment facilities where applicable
Surface-treatment facilities where applicable
Measuring instruments
Testing facilities or permitted testing arrangements
Quality-control system
Calibration system
Raw-material control
Production records
Inspection records
Storage facilities
Packing facilities

Documents Required

Documents commonly required for the certification process can include:

Company registration documents
Factory address proof
Factory layout
Manufacturing process flow
Machinery list
Product drawings
Product specifications
Size-range details
Property-class details
Raw-material specifications
Material test certificates
Testing equipment list
Calibration certificates
Internal test reports
Quality-control records
Inspection records
Product photographs
Packaging details
Marking details
Trademark documents where applicable
Authorized signatory documents

The exact document list depends on the applicant and product scope.

BIS Certification Process

1. Product Identification

The product and applicable standard are identified.

2. Standard Review

Requirements of IS 1363 Part 1 are reviewed.

3. Factory Assessment

Manufacturing facilities and quality-control arrangements are evaluated.

4. Product Grouping

Applicable size and property-class grouping is determined.

5. Documentation

Technical and legal documents are prepared.

6. Sample Preparation

Representative samples are prepared.

7. Laboratory Testing

Samples are tested against applicable requirements.

8. BIS Application

The application is submitted through the applicable BIS certification route.

9. BIS Scrutiny

BIS reviews the application and documents.

10. Factory Inspection

The manufacturing facility is assessed as required.

11. Test Report Evaluation

Testing results are reviewed.

12. Observation Closure

Any observations or non-conformities are addressed.

13. Licence Grant

The BIS licence is granted after successful completion of the applicable requirements.

14. Standard Mark

The Standard Mark is used according to the licence conditions.

Factory Inspection

During the factory assessment, important areas can include:

Raw Material

Verification of material specifications and traceability.

Manufacturing Machinery

Inspection of heading, threading, heat treatment and finishing facilities.

Production Process

Review of manufacturing controls.

Testing Equipment

Verification of relevant measuring and testing equipment.

Calibration

Review of calibration records.

Quality Control

Inspection of incoming, in-process and finished-product inspection systems.

Traceability

Checking batch/lot identification.

Marking

Verification of applicable product marking.

Packing

Inspection of storage and packing arrangements.

Common Reasons for Certification Delays

Manufacturers may experience delays due to:

Incorrect standard selection
Using an outdated standard
Incorrect product grouping
Incomplete product drawings
Incorrect dimensions
Thread non-conformity
Mechanical test failure
Surface defects
Improper heat treatment
Coating problems
Missing material certificates
Missing calibration records
Incomplete quality-control records
Incorrect marking
Factory not ready for inspection
Incomplete application documents

Proper preparation before application can reduce unnecessary delays.

BIS Certification Cost

The total cost depends on:

BIS application charges
Laboratory testing
Product size
Number of variants
Property class
Surface condition
Product grouping
Factory inspection
Sample transportation
Retesting, if required
Documentation
Consultancy charges

Current BIS LIMS listings show different testing costs depending on laboratory and scope. For example, current listings include ₹14,000 for one complete listed scope and ₹15,000 for another scope up to M33, excluding taxes.

The actual certification cost should therefore be calculated after reviewing the manufacturer's complete product range.

Certification Timeline

The time required depends on:

Document readiness
Factory readiness
Sample availability
Laboratory schedule
Testing
BIS scrutiny
Factory inspection
Test report evaluation
Observation closure

A product-specific timeline can be estimated after reviewing the factory and product scope.

Benefits of BIS Certification

Regulatory Compliance

Helps manufacturers meet applicable requirements under the relevant regulatory framework.

Product Quality

Encourages consistent manufacturing and inspection.

Customer Confidence

The BIS Standard Mark provides additional assurance regarding conformity.

Market Acceptance

Supports supply of certified products where BIS compliance is applicable.

Better Traceability

Quality-control documentation improves product and batch traceability.

Business Credibility

BIS certification can strengthen confidence among industrial and institutional buyers.

Why Choose Qualitance India?

Qualitance India provides BIS certification consultancy services for manufacturers dealing with products covered by Indian Standards.

For Hexagon Head Bolts as per IS 1363 (Part 1):2023, assistance can include:

Product applicability assessment
Standard requirement review
Product grouping
Size-range assessment
Property-class assessment
Documentation support
Laboratory coordination
Sample preparation guidance
BIS application support
Factory inspection preparation
Quality-control documentation
Test report coordination
Observation closure assistance
BIS licence support

Qualitance India

Phone: +91-9310-615-170
Email: info@qualitanceindia.com
Website: Qualitance India

Certification Process

Product Identification
↓
IS 1363 Part 1 Requirement Review
↓
Factory Assessment
↓
Documentation Preparation
↓
Product Grouping
↓
Sample Preparation
↓
Laboratory Testing
↓
BIS Application
↓
BIS Scrutiny
↓
Factory Inspection
↓
Test Report Evaluation
↓
Observation Closure
↓
BIS Licence
↓
Standard Mark Compliance

Frequently Asked Questions

1. What is IS 1363 Part 1?

IS 1363 Part 1 is the Indian Standard for Hexagon Head Bolts, Product Grade C, Size Range M5 to M64. The current version is IS 1363 (Part 1):2023.

2. What is the size range covered?

The standard covers M5 to M64.

3. What product grade is covered?

The standard covers Product Grade C Hexagon Head Bolts.

4. What property classes are covered?

The current Product Manual identifies 4.6, 4.8 or as declared by the manufacturer, subject to the applicable requirements.

5. Is BIS Certification required for Hexagon Head Bolts?

IS 1363 Part 1 is listed by BIS under Scheme-I in the Bolts, Nuts and Fasteners category and is associated with the applicable Quality Control Orders.

6. What is the current version of the standard?

The current BIS standard database identifies IS 1363 Part 1:2023 as active.

7. How many samples are required?

The current Product Manual specifies 6 bolts as the sample size.

8. What tests are performed?

Testing can cover dimensions, general requirements, thread, mechanical properties, tolerances, surface condition, surface integrity, acceptability, marking and designation.

9. Is thread testing required?

Yes. Thread is included in the applicable testing requirements.

10. Are mechanical properties tested?

Yes. Mechanical properties are included among the applicable requirements.

11. Is surface integrity checked?

Yes. Surface integrity is one of the testing areas identified by BIS LIMS.

12. Is marking required?

Yes. Applicable marking and labelling requirements must be followed.

13. Can M5 to M64 be included in one licence?

The licence scope depends on applicable BIS product grouping, representative sampling, property class and manufacturing/testing capabilities. The Product Manual provides grouping guidelines under Annex A.

14. What is the BIS testing cost?

Testing costs vary according to the laboratory and scope. Current BIS LIMS listings show examples of ₹14,000 and ₹15,000 excluding taxes for specified scopes.

15. Is factory inspection required?

Factory assessment can form part of the applicable BIS certification process.

16. What documents are required?

Documents can include factory details, product drawings, machinery information, raw-material details, testing equipment, calibration records and quality-control documents.

17. Who can apply for certification?

Eligible manufacturers producing the applicable Hexagon Head Bolts can apply under the relevant BIS certification requirements.

18. Can different sizes be covered?

Different sizes can be included according to the applicable grouping requirements and approved licence scope.

19. What is Product Grade C?

Product Grade C is the product grade specified for the Hexagon Head Bolts covered by IS 1363 Part 1.

20. Can Qualitance India help with BIS certification?

Yes. Qualitance India can assist with product assessment, documentation, product grouping, laboratory testing coordination, BIS application and factory inspection preparation.

Website Image Text

HEXAGON HEAD BOLTS

IS 1363 (PART 1):2023

SIZE RANGE: M5 TO M64

PRODUCT GRADE C

BIS CERTIFICATION CONSULTANCY

Qualitance India
+91-9310-615-170
info@qualitanceindia.com
qualitanceindia.com

Image ALT Text

BIS Certification for Hexagon Head Bolts
Hexagon Head Bolts IS 1363 Part 1
Hexagon Head Bolts M5 to M64
BIS Licence for Hexagon Head Bolts
IS 1363 Part 1:2023 Certification
Product Grade C Hexagon Head Bolts
Hexagon Bolt BIS Certification
Hexagon Head Bolt Testing
Hexagon Head Bolt ISI Mark
Hexagon Bolt Mechanical Testing
Hexagon Bolt Thread Testing
Hexagon Bolt Surface Integrity Testing
Bolts Nuts and Fasteners BIS Certification
Hexagon Head Bolt Manufacturer BIS Licence
Qualitance India Hexagon Bolt Certification

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Need BIS Certification for Hexagon Head Bolts?

If you manufacture Hexagon Head Bolts from M5 to M64 and require assistance with BIS certification, product grouping, testing, documentation or factory inspection preparation, Qualitance India can assist throughout the certification process.

Phone: +91-9310-615-170
Email: info@qualitanceindia.com
Website: qualitanceindia.com

Conclusion

Hexagon Head Bolts are widely used fastening components across engineering, automobile, construction, machinery and industrial applications. IS 1363 (Part 1):2023 specifies requirements for Product Grade C Hexagon Head Bolts in the M5 to M64 size range.

The certification requirements cover important areas such as dimensions, thread, mechanical properties, tolerances, surface condition, surface integrity, marking and other applicable requirements.

BIS currently includes this product within the Bolts, Nuts and Fasteners category under Scheme-I. Manufacturers should therefore carefully review the latest standard, applicable QCO requirements, product grouping and testing provisions before applying.

Qualitance India can support manufacturers with product assessment, documentation, product grouping, laboratory testing coordination, BIS application and factory inspection preparation for Hexagon Head Bolts as per IS 1363 (Part 1):2023.