BS 7670-1:1993
Current
The latest, up-to-date edition.
Steel nuts and bolts for resistance projection welding. Specification for dimensions and properties
Hardcopy , PDF
English
15-09-1993
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Committees responsible
Foreword
Specification
1 Scope
2 References
3 Definitions
4 Weld bolts
5 Weld nuts
Tables
1 Dimensions of weld bolts
2 Characteristics of weld bolts
3 Dimensions of square weld nuts
4 Dimensions of hexagonal weld nuts
5 Characteristics of weld nuts
Figures
1 Dimensions of weld bolts
2 Dimensions of square weld nuts
3 Dimensions of hexagonal weld nuts
List of references
For weld nuts and bolts threaded M3 to M12 inclusive and weld nuts threaded 7/16\'-20 UNF.
| Committee |
FME/9
|
| DevelopmentNote |
Supersedes 92/82393 DC. (10/2005) Reviewed and confirmed by BSI, January 2012. (12/2011)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This Part of BS 7670 specifies the general dimensions, tolerances, materials and mechanical properties both for imperial weld nuts threaded 7/16–20UNF–2B and metric weld nuts and weld bolts with nominal thread diameters from M3 to M12 inclusive. The weld bolts have circular heads with three projections and the nuts are square with four projections or hexagonal with three projections for projection welding.
| BS 7670-2:1997 | Steel nuts and bolts for resistance projection welding Specification for welding of weld nuts and weld bolts |
| BS 3643-1:1981 | ISO metric screw threads Principles and basic data |
| BS EN 20898-2:1994 | Mechanical properties of fasteners Nuts with specified proof load values. Coarse thread |
| BS 6587:1985 | Method of acceptance inspection for fasteners |
| BS EN 20898-1:1992 | Mechanical properties of fasteners Bolts, screws and studs |
| BS 499-1:1991 | Welding terms and symbols Glossary for welding, brazing and thermal cutting |
| BS 6322-1:1982 | Tolerances for fasteners Specification for tolerances of bolts, screws and nuts with thread diameters ≥ 1.6 mm and ≤ 150 mm and product grades A, B and C |
| BS 3654:1963 | Specification for galvanized steel dustbins for dustless emptying |
| BS 1580-1&2(1962) : 1962 | SPECIFICATION FOR UNIFIED SCREW THREADS - DIAMETERS 1/4 INCH AND LARGER |
| BS 7670-2:1997 | Steel nuts and bolts for resistance projection welding Specification for welding of weld nuts and weld bolts |
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