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BIS Certification For Fastners – Threaded Steel Fastners - Hexagon Head Tower Bolts IS 12427 : 2001


BIS Certification For IS 12427 : 2001

A fastener or fastening is a hardware device that mechanically joins or affixes two or more objects together. In general, fasteners are used to create non-permanent joints; that is, joints that can be removed or dismantled without damaging the joining components. A threaded fastener is a discrete piece of hardware that has internal or external screw threads. It falls into the overall fastener family. They are usually used for the assembly of multiple parts and facilitate disassembly. The most common types are the screw, nut and bolt. Hex bolts used to fasten wood to wood, or metal to wood. Tower Bolt is a rod-shaped bolt for fastening a door or the like, attached to one side of the door at the edge and sliding into a cylindrical casing on the frame of the opening.

BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986  to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country.

Fasteners – Threaded Steel Fasteners – Hexagon Head Tower Bolts product has been specified in IS 12427 : 2001 by Bureau of Indian Standards.

Scope

1.1 This standard covers the requirements for hot-dip galvanized hexagon head transmission tower bolts in the size range M12 to M24for use in the construction of transmission towers, sub-stations and similar steel structures.

1.2 The bolts covered in this standard are not suitable for applications requiring improved low temperatures characteristics.

References

IS 1367 : Part 2 : 1979

Technical supply conditions for threaded steel fasteners:

Part 2 Product grades and tolerances

IS 1367 : Part 3 : 1991

Fasteners - Threaded steel - Technical

ISO 898-1 : 1988

supply conditions:

Part 3 Mechanical properties and test methods for bolts, screws and studs with full loadability

IS 1367 : Part 9 : Sec 1 : 1993

Technical supply conditions for threaded

ISO 6157-1 : 1988

steel fasteners:

Part 9 Surface discontinuities,

Section 1 Bolts, screws and studs for general applications

IS 1367 : Part 13 : 1983

Technical supply conditions for threaded steel fasteners:

Part 13 Hot-dip galvanized coatings on threaded fasteners

IS 1367 : Part 17 : 1996

Industrial fasteners - Threaded steel

ISO 3269 : 1988

fasteners - Technical supply conditions:

Part 17 Inspection, sampling and acceptance procedure

IS 1367 : Part 18 : 1996

Industrial fasteners - Threaded steel fasteners - Technical supply conditions:

Part 18 Packaging

IS 1368 : 1980

Dimensions for ends of parts with

ISO 4753 : 1983

external ISO metric threads

IS 2016 : 1967

Plain washers

IS 2334 : 2001

ISO general purpose metric screw

ISO 1502 : 1996

thread - Gauges and gauging

IS 4218

ISO general purpose metric screw threads:

Part 1 : 2001

Basic profiles

ISO 68-1 : 1998

Part 2 : 2001

General plan

ISO 261 : 1998

Part 3 : 1999

Basic dimensions

ISO 724 : 1993

Part 4 : 2001

Selected sizes for screws, bolts and

ISO 262 : 1998

nuts

IS 4759 : 1996

Hot-dip zinc coatings on structural steel and other allied products

IS 14394 : 1996

Industrial fasteners - Hexagon nuts of product grade C - Hot-dip galvanized -Specification (size range M12 to M36)

 

Following are the Testing Parameters :

·       Dimensions

·       Threads

·       Nuts

·       Washers

·       Material

·       Tensile Test

·       Proof Load Test

·       Head Soundness Test

·       Torsion Test

·       Impact Test

·       Hardness Test

·       Decarburization Test

·       Carburization Test

·       Retempering Test

·       Finish

·       General Requirement

·       Thread Requirement

·       Stress under proof load

·       Surface Integrity Inspection

·       Hot dip galvanizing

BIS Certification in India

 

It is always better to consult with experience team such as ERCS Pvt. Ltd. for smooth certification process.

For more information, please feel free to contact us at info@elitasrcs.com or call at +91-9076611770 / +91-9076611766.

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