BS 7794:1995
Current
The latest, up-to-date edition.
Specification for square-drive sockets, driving squares and accessories for power-driven socket wrenches
Hardcopy , PDF
English
15-11-1995
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Committees responsible
Foreword
SPECIFICATION
1 Scope
2 References
3 Definitions
4 Materials
5 Hardness
6 Design and manufacture
7 Finish
8 Dimensions and tolerances
9 Designation and marking
Annexes
A (normative) Power-driven square-drive sockets and
accessories for the Unified inch series of bolts, nuts
and machine screws
B (normative) Power-driven square-drive sockets and
accessories for BSW, BSF and BA bolts, nuts and
machine screws (obsolescent)
C (informative) Notes on safe usage of power-driven
sockets and accessories
D (informative) Retaining devices
Tables
1 Male driving squares
2 Female driving squares
3 Hexagon sockets with 6.3 mm square drive
4 Hexagon sockets with 10 mm square drive
5 Hexagon sockets with 12.5 mm square drive
6 Hexagon sockets with 20 mm square drive
7 Hexagon sockets with 25 mm square drive
8 Hexagon sockets with 40 mm square drive
9 Power-square drive converters
10 Power square-drive extensions
11 Power square-drive universal joints
A.1 Hexagon sockets with a quarter inch (6.3 mm) square
drive: Unified (inch) hexagons
A.2 Hexagon sockets with three eighths of an inch (10 mm)
square drive: Unified (inch) hexagons
A.3 Hexagon sockets with a half inch (12.5 mm) square
drive: Unified (inch) hexagons
A.4 Hexagon sockets with three quarters of an inch
(20 mm) square drive: Unified (inch) hexagons
A.5 Hexagon sockets with 1 in (25 mm) square drive:
Unified (inch) hexagons
A.6 Hexagon sockets with one and a half inch (40 mm)
square drive: Unified (inch) hexagons
B.1 Hexagon sockets with a quarter of an inch (6.3 mm)
square drive: BSF, BSW and large Whitworth hexagons
B.2 Hexagon sockets with a quarter of an inch (6.3 mm)
square drive: BA hexagons
B.3 Hexagon sockets with three eighths of an inch (10mm)
square drive: BSF, BSW and large Whitworth hexagons
B.4 hexagon sockets with half an inch (12.5 mm) square
drive: BSF, BSW and large Whitworth hexagons
B.5 Hexagon sockets with three quarters of an inch
(20 mm) square drive: BSF, BSW and large Whitworth
hexagons
B.6 Hexagon sockets with 1 inch (25 mm) square drive:
BSF, BSW and large Whitworth hexagons
Figures
1 Male driving squares
2 Female driving squares
3 Hexagon sockets with 6.3 mm square drive
4 Hexagon sockets with 10 mm square drive
5 Hexagon sockets with 12.5 mm square drive
6 Hexagon sockets with 20 mm square drive
7 Hexagon sockets with 25 mm square drive
8 Hexagon sockets with 40 mm square drive
9 Power square-drive converters
10 Power square-drive extensions
11 Power square-drive universal joints
A.1 Hexagon sockets with a quarter of an inch (6.3 mm)
square drive: Unified (inch) hexagons
A.2 Hexagon sockets with three eighths of an inch
(10 mm) square drive: Unified (inch) hexagons
A.3 Hexagon sockets with half an inch (12.5 mm) square
drive: Unified (inch) hexagons
A.4 Hexagon sockets with a three quarters of an inch
(20 mm) square drive: Unified (inch) hexagons
A.5 Hexagon sockets with 1 in (25 mm) square drive:
Unified (inch) hexagons
A.6 Hexagon sockets with one and a half inch (40 mm)
square drive: Unified (inch) hexagons
B.1 Hexagon sockets with a quarter of an inch (6.3 mm)
square drive: BSF, BSW and large Whitworth hexagons
B.2 Hexagon sockets with a quarter of an inch (6.3 mm)
square drive: BA hexagons
B.3 Hexagon sockets with three eigths of an inch
(10 mm) square drive: BSF, BSW and large Whitworth
hexagons
B.4 Hexagon sockets with a half inch (12.5 mm) square
drive: BSF, BSW and large Whitworth hexagons
B.5 Hexagon sockets with a three quarters of an inch
(20 mm) square drive: BSF, BSW and large Whitworth
hexagons
B.6 Hexagon sockets with 1 in (25 mm) square drive:BSF,
BSW and large Whitworth hexagons
D.1 Retaining devices
List of references
Specifies design and dimensional requirements for some components of power-driven socket wrenches.
| Committee |
MTE/15
|
| DevelopmentNote |
Supersedes 93/706844 DC (10/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This British Standard specifies design and dimensional requirements for the following components of power-driven socket wrenches: square-drive sockets for metric bolts, nuts and machine screws specified in: BS 3692 : 1967, BS 4183 : 1967, BS 4190 : 1967, BS 4395 : Parts 1 and 2 : 1969, BS 4929 : 1973; driving squares; accessories: square-drive converters, extensions and universal joints. The dimensional requirements for comparable sockets for the inch series of bolts, nuts and machine screws are specified in annexes A and B. Annex C gives notes on the safe usage of power-driven sockets and accessories, and annex D describes two types of retaining device.
| BS 916:1953 | Specification for black bolts, screws and nuts, hexagon and square, with B.S.W. threads, and partly machined bolts, screws and nuts, hexagon and square, with B.S.W. or B.S.F. threads |
| BS 4395-1:1969 | Specification for high strength friction grip bolts and associated nuts and washers for structural engineering General grade |
| BS 1083:1965 | Specification for precision hexagon bolts, screws and nuts (B.S.W. & B.S.F. threads) |
| BS 1769:1951 | Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series |
| BS 4929-1:1973 | Specification for steel hexagon prevailing-torque type nuts Metric series |
| BS 4190:1967 | Specification for ISO metric black hexagon bolts, screws and nuts |
| BS 4183:1967 | Specification for machine screws and machine screw nuts. Metric series |
| BS 4395-2:1969 | Specification for high strength friction grip bolts and associated nuts and washers for structural engineering Higher grade bolts and nuts and general grade washers |
| BS 571(1953) : LATEST | FLASKS FOR THE DETERMINATION OF DISTILLATION RANGE |
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