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Spring Pins, Roll Pins, Split Pins Size Table ANSI/ASME B18.8.2
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The following is dimensional and general data for spring pins recognized as American National Standard, which are widely used in general industrial applications per. ANSI/ASME B18.8.2.
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All dimensions are in inches.
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Where specifying nominal size in decimals, zeros preceding decimal point are omitted.
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Length increments are 1⁄16 inch from 1⁄8 to 1 inch; 1⁄8 from 1 inch to 2 inches; and 1⁄4 inch from 2 inches
to 6 inches.

Engineering, design and manufacturing reference data
SPRING PINS (Roll Pins, Split Pins) |
Nominal Size or Basic
Pin Diameter |
G |
H |
C |
T |
Recommended
Hole Size |
Double Shear Lbs. |
Pin Diameter |
Chamfer Diameter |
Chamfer Length |
Wall
Thickness |
Max |
Min |
Max |
Max |
Min |
Basic |
Max |
Min |
SAE 1070-
1095 Steel & 420 SS |
300 Series
Stainless |
1/16 |
.062 |
0.069 |
0.066 |
0.059 |
0.028 |
0.007 |
0.012 |
0.065 |
0.062 |
430 |
250 |
5/64 |
.078 |
0.086 |
0.083 |
0.075 |
0.032 |
0.008 |
0.018 |
0.081 |
0.078 |
800 |
460 |
3/32 |
.094 |
0.103 |
0.099 |
0.091 |
0.038 |
0.008 |
0.022 |
0.097 |
0.094 |
1150 |
670 |
1/8 |
.125 |
0.135 |
0.131 |
0.122 |
0.044 |
0.008 |
0.028 |
0.129 |
0.125 |
1875 |
1090 |
5/32 |
.156 |
0.167 |
0.162 |
0.151 |
0.048 |
0.010 |
0.032 |
0.160 |
0.156 |
2750 |
1600 |
3/16 |
.188 |
0.199 |
0.194 |
0.182 |
0.055 |
0.011 |
0.040 |
0.192 |
0.187 |
4150 |
2425 |
7/32 |
.219 |
0.232 |
0.226 |
0.214 |
0.065 |
0.011 |
0.048 |
0.224 |
0.219 |
5850 |
3400 |
1/4 |
.250 |
0.264 |
0.258 |
0.245 |
0.068 |
0.012 |
0.048 |
0.256 |
0.250 |
7050 |
4100 |
5/16 |
.312 |
0.330 |
0.321 |
0.306 |
0.080 |
0.014 |
0.062 |
0.318 |
0.312 |
10800 |
6300 |
3/8 |
.375 |
0.395 |
0.385 |
0.368 |
0.095 |
0.016 |
0.077 |
0.382 |
0.375 |
16300 |
9500 |
7/16 |
.438 |
0.459 |
0.448 |
0.430 |
0.095 |
0.017 |
0.077 |
0.445 |
0.437 |
19800 |
11500 |
1/2 |
.500 |
0.524 |
0.513 |
0.485 |
0.110 |
0.025 |
0.094 |
0.510 |
0.500 |
27100 |
15800 |
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