ASME B18.3 Hexagon and Spline Socket Head Cap Screws



Dimensions of Hexagon and Spline Socket Head Cap Screws
Nominal Size or Basic Diameter
D
A
H
C
M
J
T
G
K
Body Diameter
Head Diameter
Head Height
Chamfer or Radius
Spline Socket Size
Hexagon Socket Size
Ket Engagement
Wall Thickness
Chamfer or Radius
Max
Min
Max
Min
Max
Min
Max
Nom
Nom
Min
Min
Max
0
0.0600
0.0600
0.0568
0.096
0.091
0.060
0.057
0.004
0.060
　
0.050
0.025
0.020
0.007
1
0.0730
0.0730
0.0695
0.118
0.112
0.073
0.070
0.005
0.072
1/16
0.062
0.031
0.025
0.007
2
0.0860
0.0860
0.0822
0.140
0.134
0.086
0.083
0.008
0.096
5/64
0.078
0.038
0.029
0.007
3
0.0990
0.0990
0.0949
0.161
0.154
0.099
0.095
0.008
0.096
5/64
0.078
0.044
0.034
0.007
4
0.1120
0.1120
0.1075
0.183
0.176
0.112
0.108
0.009
0.111
3/32
0.094
0.051
0.038
0.008
5
0.1250
0.1250
0.1202
0.205
0.198
0.125
0.121
0.012
0.111
3/32
0.094
0.057
0.043
0.008
6
0.1380
0.1380
0.1329
0.226
0.218
0.138
0.134
0.013
0.133
7/64
0.109
0.064
0.047
0.008
8
0.1640
0.1640
0.1585
0.270
0.262
0.164
0.159
0.014
0.168
9/64
0.141
0.077
0.056
0.008
10
0.1900
0.1900
0.1840
0.312
0.303
0.190
0.185
0.018
0.183
5/32
0.156
0.090
0.065
0.008
1/4
0.2500
0.2500
0.2435
0.375
0.365
0.250
0.244
0.025
0.216
3/16
0.188
0.120
0.095
0.010
5/16
0.3125
0.3125
0.3053
0.469
0.457
0.312
0.306
0.033
0.291
1/4
0.250
0.151
0.119
0.010
3/8
0.3750
0.3750
0.3678
0.562
0.550
0.375
0.368
0.040
0.372
5/16
0.312
0.182
0.143
0.010
7/16
0.4375
0.4375
0.4294
0.656
0.642
0.438
0.430
0.047
0.454
3/8
0.375
0.213
0.166
0.015
1/2
0.5000
0.5000
0.4919
0.750
0.735
0.500
0.492
0.055
0.454
3/8
0.375
0.245
0.190
0.015
5/8
0.6250
0.6250
0.6163
0.938
0.921
0.625
0.616
0.070
0.595
1/2
0.500
0.307
0.238
0.015
3/4
0.7500
0.7500
0.7406
1.125
1.107
0.750
0.740
0.085
0.620
5/8
0.625
0.370
0.285
0.015
7/8
0.8750
0.8750
0.8647
1.312
1.293
0.875
0.864
0.100
0.698
3/4
0.750
0.432
0.333
0.020
1
1.0000
1.0000
0.9886
1.500
1.479
1.000
0.988
0.114
0.790
3/4
0.750
0.495
0.380
0.020
1-1/8
1.1250
1.1250
1.1086
1.688
1.665
1.125
1.111
0.129
-
7/8
0.875
0.557
0.428
0.020
1-1/4
1.2500
0.2500
1.2336
1.875
1.852
1.250
1.236
0.114
-
7/8
0.875
0.620
0.475
0.020
1-3/8
1.3750
0.3750
1.3568
2.062
2.038
1.375
1.360
0.160
-
1
1.000
0.682
0.523
0.020
1-1/2
1.5000
1.5000
1.4818
2.250
2.224
1.500
1.485
0.176
-
1
1.000
0.745
0.570
0.020
1-3/4
1.7500
1.7500
1.7295
2.625
2.597
1.750
1.734
0.207
-
1-1/4
1.250
0.870
0.665
0.020
2
2.0000
2.0000
1.9780
3.000
2.970
2.000
1.983
0.238
-
1-1/2
1.500
0.995
0.760
0.020
2-1/4
2.2500
2.2500
2.2280
3.375
3.344
2.250
2.232
0.269
-
1-3/4
1.750
1.120
0.855
0.036
2-1/2
2.5000
2.5000
2.4762
3.750
3.717
2.500
2.481
0.300
-
1-3/4
1.750
1.245
0.950
0.036
2-3/4
2.7500
2.7500
2.9762
4.125
4.090
2.750
2.730
0.332
-
2
2.000
1.270
2.045
0.036
3
3.0000
3.0000
3.2262
4.500
4.464
3.000
3.979
0.363
-
2-1/4
2.250
1.495
1.140
0.036
3-1/4
3.2500
3.2500
3.4762
4.875
4.837
3.2500
3.228
0.394
-
2-1/4
2.750
1.620
1.235
0.036
3-1/2
3.5000
3.5000
3.4762
5.250
5.211
3.5000
3.478
0.426
-
2-3/4
2.750
1.745
1.330
0.036
3-3/4
3.7500
3.7500
3.7262
5.635
5.584
3.7500
3.727
0.458
-
2-3/4
3.000
1.870
1.425
0.036
4
4.0000
4.0000
3.9762
6.000
5.958
4.0000
3.976
0.489
-
3
　
1.995
1.520
0.036

Tags: ASME B18.3 Hexagon and Spline Socket Head Cap Screws

General Material:Stainless Steel,Nickel Alloy,Silicon Bronze,Aluminium Bronze,Brass,Naval Brass,Coppe,Copper-Nickel,Aluminum Alloy,Titanium,Alloy Steel,Such as C1008,C1018,C1022,C1035,C1045,40cr,SCM435,35crmoA,42crmoA,AISI4140SS304/A2-70,SS316/A4-80,SS310s,SS309,SS321,SS410,SS317,SS904L,17-4 PH/630,Duplex 2205,Duplex 31803,Nitronic 40,Nitronic 50,Nitronic 60,Nickel Alloy,Hastelloy C276,Inconel 600,Inconel 601,Inconel 625,Inconel 718,Inconel X750,Inconel 800H,Inconel 825,Monel 400,Monel 405,Monel K-500,MP35N,Nickel 200,Nickel 201,Waspaloy)C65500,C64200,C61400,C63000,C63200,C46200,H59,H62,H67,C46400,C11000,90/10 C70600,70/30 C71500,6061-T6,2024-T4,Ti-6Al-4V Grade 5,ASTM B348 Grade 2,ASTM B348 Grade 7,651/S63198
General Surface Finish:Blackoxide,Zinc,Dacromet 500/Dacromet 320,Non-electrolytically Deposited Zinc Flake,Hot-dip Galvanization,Phosphating,Passviation