IS 1369 : Part 3 : 2021 Fasteners - Thread Run-outs and Undercuts Part 3 Dimensions for Screw Thread Run-outs and Intercuts for Internal Threads ( Blind Tapped Holes )

ICS 01 .040.55; 55.080

PGD 37

Revised Standard from Last Update.

1. SCOPE

This standard (Part 3) covers dimensions for thread run-outs and thread undercuts for bolts, screws and similar components with internal ISO metric (coarse or fine pitch) screw thread as in IS 4218.

1.1 Recommendations for length of full threads in blind tapped holes are also made in this standard.