IS 2687 : 1991 Cap nuts - Specification

1 Scope

This Indian Standard covers the requirements for cap nuts ofproduct Grade A in the size range M4 to M48 with coarse pitch andfine pitch threads.

2 References

IS1367Technical supply conditions for threaded steelfasteners:

Part 1 :1980 Introduction and generalinformation

Part 2 :1979 Product grades and tolerances

Part 6 :1980 Mechanical properties and testmethods for nuts withspecified proof loads

Part 10 :1979 Surface discontinuities on nuts

Part11Electroplated coatings on threaded fasteners (under preparation)

Part 13 :1983 Hot dip galvanised coatings on threadedfasteners

Part 14 :1984 Stainless steel threaded fasteners

Part 18 : 1979 Marking and mode of delivery

IS 1369 : 1982 Dimensions for screwthread runouts and undercuts

IS 2614 :1969 Methods of sampling offasteners

IS4218ISO Metric screw threads -

Part 5 :1979 Tolerances

Part 6 :1978 ISO Metric screw threads - Limits ofsizes forcommercial bolts and nuts (diameter range 1 to 52mm)