IS 6175 : Part 5 : 1991 Screwing taps - Part 5 : Nut Screwing Taps for ISO Metric Screw Threads Sizes M3 to M68 with Coarse Pitches - Specification

1 Scope

This standard covers the dimensions and requirements forscrewing taps for ISO metric screw threads in the size range M3 toM68 with coarse pitches conforming to IS 4218 (Parts 1 to 6) : 1976and with a relieved shank.

IS4218ISO metric screw threads:

IS 4218 : Part 1 :1976 Part 1 Basic and design profiles

IS 4218 : Part 2 :1976 Part 2 Diameter pitch combinations

IS 4218 : Part 3 :1976 Part 3 Basic dimensions for design twofiles

IS 4218 : Part 4 :1976 Part 4 Tolerancing system

IS 4218 : Part 5 :1979 Part 5 Tolerances

IS 4218 : Part 6 :1978 Part 6 Limits of sizes for commercialbolts andnuts (diameter range 1 to 52 mm)

2 References

IS 6971 :1991Screwing taps - Technical supply conditions

IS 6173 : Part 1 :1991 Screwing taps - Dimensions and tolerances onthreaded portion of screwing taps:Part 1 For ISO metric screw threads

IS 6175 : Part 3 :1991 Screwing taps -Part 3 Hand and short machine screwing taps forISO metric screw threads sizes M3 to M68 withcoarse pitches and M3 to M100 with fine pitches