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
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
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