BS 4377:1980

Original price was: $264.16.Current price is: $132.00.

Specification for the tapping of holes to receive wire thread inserts (ISO metric threads)

BSI Group , 04/30/1980

Category:
Specifies limits of sizes for tapped holes to accommodate wire to provide ISO metric thread sizes from M2 to M39 diameter inclusive. Recommends screwing taps and also a gauging system for checking the tapped holes.