Cam-Tech Industries

 

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APPENDIX B
APPLICABILITY OF KEYS AND BITS TO VARIOUS
SOCKET SCREW TYPES AND SIZES

(This Appendix is not part of ASME B18.3-1998 and is included for informational purposes only.)

TABLE B1
APPLICABILITY OF
HEXAGON KEYS AND BITS

Nominal Key
or Bit Size
Nominal Screw Sizes
Set Screws

...
...
...
1/16
0.028
0.035
0.050
0.062
0
1 and 2
3 and 4
5 and 6

5/64
3/32
7/64
1/8
0.078
0.094
0.109
0.125
8
10
...
1/4

9/64
5/32
3/16
7/32
0.141
0.156
0.188
0.219
...
5/16
3/8
7/16

1/4
5/16
3/8
7/16
0.250
0.312
0.375
0.438
1/2
5/8
3/4
...

1/2
9/16
5/8
0.500
0.562
0.625
7/8
1 and 1-1/8
1-1/4 and 1-3/8

Cam-Tech Industries, Inc. only
manufactures up to 5/8" diameter.

*This material has been reproduced with the permission of ASME. 
No further reproduction is allowed without the express written consent of ASME International.


TABLE B2
  APPLICABILITY OF SPLINE
KEYS AND BITS

Nominal
Key Size
Nominal Screw Sizes
Set Screws

0.033
0.048
0.060
0.069
0 and 1
2 and 3
4
5

0.072
0.076
0.096
0.111
5 and 6
6
8
10

0.133
0.145
0.168
0.183
...
1/4
...
5/16

0.216
0.251
0.291
0.372
3/8
7/16
1/2
5/8

Cam-Tech Industries, Inc. only manufactures up to 5/8" diameter.

*This material has been reproduced with the permission of ASME. 
No further reproduction is allowed without the express written consent of ASME International.

 

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