IS 9549 : 1980 DIMENSIONS FOR SPLIT PIN HOLES, WIRE HOLES AND HEAD SLOTS FOR BOLTS
| UDC 621 ·882·15: 006·78 | PGD 37 |
Reaffirmed 2014
1. Scope
Covers the dimensions for split pin holes and wire holes for bolts, screws and slots for hexagon and square head bolts and screws.