IS 9631-1983 Specification for measuring elements of GO and NO GO screw plug gauges and screw check plug gauges for ISO metric threads (size range from M1 to AMD including M40)
Covers requirements for gauging members for GO and NO GO screw plug gauges and GO and NO GO screw check plug gauges for GO and NO GO new solid screw ring gauges in the size range from M1 up to and including M40 for ISO metric screw threads according to IS : 4218 ( Parts 1 to 6) ' ISO metric screw threads '.
IS 9631-1983 history
1984IS 9631-1983 Specification for measuring elements of GO and NO GO screw plug gauges and screw check plug gauges for ISO metric threads (size range from M1 to AMD including M40)