BS 4377:1991
Current
The latest, up-to-date edition.
Specification for tapping of holes to receive wire thread inserts (ISO metric threads)
Hardcopy , PDF
English
31-05-1991
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Committees responsible
Foreword
1 Scope
2 Form of thread and limits of size for tapped holes
3 Screwing taps
4 Gauging system
5 Marking
Publications referred to
Specifies limits of size for tapped holes to accomodate wire thread inserts to provide ISO metric thread sizes from M1.6 (1.6 mm diameter) to M39 (39 mm diameter) inclusive.
| Committee |
FME/9
|
| DevelopmentNote |
Supersedes BS 4377(1980) (11/2004) Supersedes 90/70426 DC. (08/2005) Reviewed and confirmed by BSI, January 2012. (12/2011)
|
| DocumentType |
Standard
|
| Pages |
22
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies requirements for:
- limits of size for tapped holes to accommodate wire thread inserts which provide ISO metric thread sizes from M1.6 (1.6 mm diameter) to M39 (39 mm diameter) inclusive;
- screwing taps intended to produce holes to the limits of size specified;
- a gauging system for checking the tapped holes.
NOTE The titles of the publications referred to in this standard are listed on the inside back cover.
| BS 3643-1:2007 | ISO metric screw threads Principles and basic data |
| BS 4500-1.2(1990) : AMD 7631 | ISO LIMITS AND FITS - GENERAL, TOLERANCES AND DEVIATIONS - TABLES OF COMMONLY USED TOLERANCE GRADES AND LIMIT DEVIATIONS FOR HOLES AND SHAFTS |
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