BS 4377:1980
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Specification for the tapping of holes to receive wire thread inserts (ISO metric threads)
Hardcopy
31-05-1991
English
30-04-1980
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.
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