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Socket Head Cap Screws

Socket Head Cap Screws
Nominal
Size or Basic Screw Diameter
B D H S C X K W
Body Diameter Head Diameter Head Height Head Side Height Chamfer or
Radius
Hexagon Socket Size Key Engage-
ment
Wall Thick-
ness
Max Min Max Min Max Min Min Max Nom Min Min
4 .1120
5 .1250
6 .1380
8 .1640
10 .1900
1/4 .2500
5/16 .3125
3/8 .3750
.1120
.1250
.1380
.1640
.1900
.2500
.3125
.3750
.1075
.1202
.1329
.1585
.1840
.2435
.3053
.3678
.183
.205
.226
.270
.312
.375
.469
.562
.176
.198
.218
.262
.303
.365
.457
.550
.112
.125
.138
.164
.190
.250
.312
.375
.108
.121
.134
.159
.185
.244
.306
.368
.101
.112
.124
.148
.171
.225
.281
.337
.005
.005
.005
.005
.005
.008
.008
.008
3/32
3/32
7/64
9/64
5/32
3/16
1/4
5/16
.094
.094
.109
.141
.156
.188
.250
.312
.051
.057
.064
.077
.090
.120
.151
.182
.038
.043
.047
.056
.065
.095
.119
.143

Flat Head Socket Cap Screws

Flat Head Socket Cap Screws

Nominal Size B D H S K F
Body Diameter Head Diameter Head Height Hexagon Socket Size Key
Engage-
ment
Fillet Extension Above 0
Theo-
retical
Sharp
Max
Abs
Min
Refer-
ence
Flush-
ness
Toler-
ance
Max Min Nom Min Max
4
5
6
8
0.1120
0.1250
0.1380
0.1640
0.1075
0.1202
0.1329
0.1585
0.255
0.281
0.307
0.359
0.218
0.240
0.263
0.311
0.083
0.090
0.097
0.112
0.011
0.012
0.013
0.014
1/16
5/64
5/64
3/32
0.055
0.061
0.066
0.076
0.012
0.014
0.015
0.015
10
1/4
5/16
3/8
0.1900
0.2500
0.3125
0.3750
0.1840
0.2435
0.3053
0.3678
0.411
0.531
0.656
0.781
0.359
0.480
0.600
0.720
0.127
0.161
0.198
0.234
0.015
0.016
0.017
0.018
1/8
5/32
3/16
7/32
0.087
0.111
0.135
0.159
0.015
0.015
0.015
0.015
7/16
1/2
5/8
3/4
0.4375
0.5000
0.6250
0.7500
0.4294
0.4919
0.6163
0.7406
0.844
0.938
1.188
1.438
0.781
0.872
1.112
1.355
0.234
0.251
0.324
0.396
0.018
0.018
0.022
0.024
1/4
5/16
3/8
1/2
0.159
0.172
0.220
0.220
0.015
0.015
0.015
0.015

Button Head Socket Cap Screws

Button Head Socket Cap Screws Button Head Socket Cap Screws
Nominal Size D H X S K F L
Head
Diameter
Head
Height
Head Side
Height
Hexagon Socket Size Key
Engage
ment
Fillet Extension Max Standard Length
Max Min Max Min Ref Nom Min Max Min Nom
4
5
6
8
0.213
0.238
0.262
0.312
0.201
0.226
0.250
0.298
0.059
0.066
0.073
0.087
0.051
0.055
0.063
0.077
0.015
0.015
0.015
0.015
1/16
5/64
5/64
3/32
0.062
0.078
0.078
0.094
0.035
0.044
0.044
0.052
0.010
0.010
0.010
0.015
0.005
0.005
0.005
0.010
0.50
0.50
0.63
0.75
10
1/4
5/16
3/8
0.361
0.437
0.547
0.656
0.347
0.419
0.527
0.636
0.101
0.132
0.166
0.199
0.091
0.122
0.152
0.185
0.020
0.031
0.031
0.031
1/8
5/32
3/16
7/32
0.125
0.156
0.188
0.219
0.070
0.087
0.105
0.122
0.015
0.020
0.020
0.020
0.010
0.015
0.015
0.015
1.00
1.00
1.00
1.25
1/2
5/8
0.875
1.000
0.851
0.970
0.265
0.331
0.245
0.311
0.046
0.062
5/16
3/8
0.312
0.375
0.175
0.210
0.030
0.030
0.020
0.020
2.00
2.00

 

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