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Pan Head
Also called Cone Head Imperial Sizes
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Small Solid Imperial Rivets for General Engineering Purposes
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BS 641 : 1951 Table 2 Pan Head
Under ½ Inch Diameter - All Dimensions in Inches - All Materials
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- - - Shank Diameter - - - |
Head Diameter |
Head Depth |
Setting |
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Nominal
D |
&
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Tolerance
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A=1.6D |
B=0.7D |
Allowance
S=1.204D |
1/32* |
0.031 |
0.027 / 0.033 |
0.050 |
0.022 |
0.038 |
3/64* |
0.047 |
0.043 / 0.049 |
0.075 |
0.033 |
0.056 |
1/16* |
0.063 |
0.059 / 0.065 |
0.100 |
0.044 |
0.075 |
5/64* |
0.078 |
0.074 / 0.080 |
0.125 |
0.055 |
0.094 |
3/32* |
0.094 |
0.090 / 0.096 |
0.150 |
0.066 |
0.113 |
7/64* |
0.109 |
0.105 / 0.111 |
0.175 |
0.077 |
0.132 |
1/8* |
0.125 |
0.121 / 0.127 |
0.200 |
0.088 |
0.151 |
9/64* |
0.141 |
0.137 / 0.143 |
0.225 |
0.098 |
0.169 |
5/32* |
0.156 |
0.152 / 0.158 |
0.250 |
0.109 |
0.188 |
3/16 |
0.188 |
0.184 / 0.190 |
0.300 |
0.131 |
0.226 |
7/32* |
0.219 |
0.214 / 0.222 |
0.350 |
0.153 |
0.263 |
1/4 |
0.250 |
0.245 / 0.253 |
0.400 |
0.175 |
0.301 |
9/32* |
0.281 |
0.276 / 0.284 |
0.450 |
0.197 |
0.339 |
5/16 |
0.313 |
0.307 / 0.317 |
0.500 |
0.219 |
0.376 |
3/8 |
0.375 |
0.367 / 0.379 |
0.600 |
0.263 |
0.452 |
7/16 |
0.438 |
0.429 / 0.443 |
0.700 |
0.306 |
0.527 |
The Britsh Standard does not specify tolerances for Head Diameter & Depth, or Shank Length.
It is normal to have a radius under the head, but no dimensions are specified.
*These Diameters are not specifically denoted in BS 641 Table 2.
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