Revised Standard from Last Update.

1. SCOPE

This standard specifies materials, components, dimensions, finishing and tests for rigging screws and stretching screws (double-ended and singleended), of the following nominal sizes:

a) Rigging screws: M12 to M90; and

b) Stretching screws: M6 to M52.

2. REFERENCES

IS 549 : 2005 Specification for split pins (third revision)

IS 1161 : 2014 Specification for steel tubes for structural purposes (fifth revision)

IS 1363 Hexagon head bolts, Screws and nuts of product grade ‘C’:

(Part 1) : 2019 Hexagon head bolts (size range M 5 to M 64) (fifth revision)

(Part 2) : 2018 Hexagon Head Screws (size range M 5 to M 64) (fifth revision)

(Part 3) : 2018 Part 3 (Style 1) Hexagon nuts (size range M 5 to M 64) (fifth revision)

IS 2062 : 2011 2062 (Hot rolled medium and high tensile structural steel - Specification (seventh revision)

IS 2315 : 1978 Specification for thimbles for wire ropes (first revision)

IS/ISO 2415 : 2004 Forged shackles for general lifting purposes - Dee shackles and bow shackles

IS 2485 : 2022 Specification for drop forged sockets for wire ropes for general engineering purposes (second revision)

IS 2633 : 1986 Method for testing uniformity of coating on zinc coated articles (second revision)

IS 4759 : 1996 Hot-dip zinc coatings on structural steel and other allied products - Specification (third revision)

IS 6745 : 1972 Methods for determination of mass of zinc coating on zinc coated iron and steel articles