BS 4006:1992
Current
The latest, up-to-date edition.
Specification for hand operated square drive socket wrenches and accessories
Hardcopy , PDF
English
15-10-1992
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Committees responsible
Foreword
Specification
1. Scope
2. Normative references
3. Definitions
4. Materials
5. Hardness
6. Design and manufacture
7. Finish
8. Dimensions and tolerances
9. Torque
10. Gauging
11. Designation and marking
Annexes
A. (normative) Torque test
B. (informative) Guidance on the safe usage of sockets
and accessories
Tables
1. Minimum detachment forces for nominal size of drive
2. Dimensions of external square drive plug ends
3. Dimensions of internal square drive socket ends
4. Dimensions of metric sockets with 6.3 mm (1/4 in)
square drives
5. Dimensions of unified sockets with 6.3 mm (1/4 in)
square drives
6. Dimensions of BSF, BSW and Whitworth sockets with
6.3 mm (1/4 in) square drives
7. Dimensions of BA sockets with 6.3 mm (1/4 in)
square drives
8. Dimensions of metric sockets with 10 mm (3/8 in)
square drives
9. Dimensions of unified sockets with 10 mm (3/8 in)
square drives
10. Dimensions of BSF, BSW and Whitworth sockets with
10 mm (3/8 in) square drives
11. Dimensions of long metric sockets with 10 mm
(3/8 in) square drives
12. Dimensions of long unified sockets with 10 mm
(3/8 in) square drives
13. Dimensions of metric sockets with 12.5 mm (1/2 in)
square drives
14. Dimensions of unified sockets with 12.5 mm (1/2 in)
square drives
15. Dimensions of BSF, BSW and Whitworth sockets with
12.5 mm (1/2 in) square drives
16. Dimensions of long metric sockets with 12.5 mm
(1/2 in) square drives
17. Dimensions of long unified sockets with 12.5 mm
(1/2 in) square drives
18. Dimensions of long BSF, BSW and Whitworth sockets
with 12.5 mm (1/2 in) square drives
19. Dimensions of bi-square sockets with 12.5 mm
(1/2 in) square drives for normal inch series
20. Dimensions of metric sockets with 20 mm (3/4 in)
square drives
21. Dimensions of unified sockets with 20 mm (3/4 in)
square drives
22. Dimensions of BSF, BSW and Whitworth sockets with
20 mm (3/4 in) square drives
23. Dimensions of metric sockets with 25 mm (1 in)
square drives
24. Dimensions of unified sockets with 25 mm (1 in)
square drives
25. Dimensions of BSF, BSW and Whitworth sockets with
25 mm (1 in) square drives
26. Dimensions of 'T' handle square drives
27. Dimensions of swivel handle nut spinners
28. Dimensions of extensions
29. Dimensions of flexible extensions
30. Dimensions of universal joints
31. Dimensions of speed braces
32. Dimensions of ratchet handles
33. Dimensions of spinner handles
34. Dimensions of ratchet unit adaptors
35. Dimensions of solid converters
Figures
1. External square drive plug ends
2. Internal square drive socket ends
3. Metric sockets with 6.3 mm (1/4 in) square drives
4. Unified sockets with 6.3 mm (1/4 in) square drives
5. BSF, BSW and Whitworth sockets with 6.3 mm (1/4 in)
square drives
6. BA sockets with 6.3 mm (1/4 in) square drives
7. Metric sockets with 10 mm (3/8 in) square drives
8. Unified sockets with 10 mm (3/8 in) square drives
9. BSF, BSW and Whitworth sockets with 10 mm (3/8 in)
square drives
10. Long metric sockets with 10 mm (3/8 in) square
drives
11. Long unified sockets with 10 mm (3/8 in) square
drives
12. Metric sockets with 12.5 mm (1/2 in) square drives
13. Unified sockets with 12.5 mm (1/2 in) square drives
14. BSF, BSW and Whitworth sockets with 12.5 mm (1/2 in)
square drives
15. Long metric sockets with 12.5 mm (1/2 in) square
drives
16. Long unified sockets with 12.5 mm (1/2 in) square
drives
17. Long BSF, BSW and Whitworth sockets with 12.5 mm
(1/2 in) square drives
18. Bi-square sockets with 12.5 mm (1/2 in) square
drives for normal inch series
19. Metric sockets with 20 mm (3/4 in) square drives
20. Unified sockets with 20 mm (3/4 in) square drives
21. BSF, BSW and Whitworth sockets with 20 mm (3/4 in)
square drives
22. Metric sockets with 25 mm (1 in) square drives
23. Unified sockets with 25 mm (1 in) square drives
24. BSF, BSW and Whitworth sockets with 25 mm (1 in)
square drives
25. "T" handle square drives
26. Swivel handle nut spinners
27. Extensions
28. Flexible extensions
29. Universal joints
30. Speed braces
31. Ratchet handles
32. Spinner handles
33. Ratchet unit adaptors
34. Solid convertors
Specifies dimensional, design and testing requirements for hand operated square drive socket wrenches and accessories. Coverage includes definitions, hardness, materials and finish. Also includes annexes, tables and diagrams.
| Committee |
MTE/15
|
| DevelopmentNote |
Supersedes BS 4006(1987) (03/2005) Supersedes 90/73756 DC (07/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
42
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies dimensional, testing and design requirements for hand operated square drive socket wrenches and accessories.
The across flats tolerances specified are in accordance with ISO 691:1983.
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| BS 57:1951 | Specification. B.A. screws bolts and nuts |
| BS 1083:1965 | Specification for precision hexagon bolts, screws and nuts (B.S.W. & B.S.F. threads) |
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