IS 6311 : 1978 Specification for ISO Metric Screw Thread Measuring Cylinders

1 Scope

Covers the requirements of screw thread measuring cylinders usedfor checking ISO metric screw threads and pipe threads covered inIS 554 : 1975 `Dimensions for pipe threads where pressure tightjoints are required on the threads (second revision)` and IS 2643 :Part I : 1975 Dimensions for pipe threads for fastening purposes:Part I Basic profiles and dimensions.