BIS CERTIFICATION FOR FASTENERS - STEP BOLTS FOR STEEL STRUCTURES
IS 10238:2001

This standard specifies the requirements for step bolts used to gain access to the top of steel structures, including transmission towers. Each bolt shall be supplied with two hexagon nuts. For safety reasons, when using step bolts to gain access to the top of the structure, the maximum total weight of a person, including bolts, nuts, tools, and tackles, should not exceed 150 kg. IS 6639 covers hexagon bolts used in the fabrication of general steel structures.

The step bolts must be of product Grade C, as defined by IS 1367 (Part 2). The step bolts must meet the requirements of property class 4.6 as defined in IS 1367. (Part 3). Mating nuts and washers must meet IS 14394 specifications. The surface discontinuities of the step bolts must comply with IS 1367 (Part 9/See 2). IS 1367(Part 17)must be followed for sampling, inspection, and acceptance criteria. A laboratory shall be maintained to carry out the various tests given in the specification as per the method specified in the standard.

TESTS

The following are the major tests for step bolts:

• Dimensions and Tolerances
• Tensile test
• Proof load test
• Hardness test
• Yield strength test
• Finished test

Packing and Marking:

A license is granted to use the Standard Mark in accordance with IS 10238: 2001. Labeling and marking must be done as per IS 10238: 2001. Step bolts must be packaged in accordance with IS 1367(Part 18). All production that meets Indian Standards and is covered by the license should bear the Standard ISI Mark.

To use a standard mark, the manufacturer must obtain a BIS license for Step Bolts for Steel Structures from the Bureau of Indian Standards. Bureau grants a BIS license based on a successful assessment of the manufacturing infrastructure, quality control and testing capabilities, and production process.BIS licence for Step Bolts for Steel Structures is required to ensure that it is safe and reliable for consumer.

NOTE:

For Detailed Information about the Procedure for BIS ISI Certification, Visit :

1. Procedure for Domestic Manufacturer
2. Procedure for Foreign Manufacturer

Conclusion:

If a product falls under the scope of the BIS Conformity Assessment Scheme, All the manufacturers, importers, and foreign entities must obtain BIS ISI Certification. The Bureau may cancel the License if the product fails to meet certification requirements.

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