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Unit:inch

Dimensions of Alternate Styles of Points for Thumb and Wing Screws

ASME/ANSI B 18.17 - 1968 (R1983)

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美标ASME/ANSI B18.17 - 1968 (R1983) ASME/A Dimensions of Alternate Styles of Points for Thumb and Wing Screws
Code
4# 6# 8# 10# 12# 1/4 5/16 3/8 7/16 1/2 5/8
d thread diameter
O Max
Min
P Max
Min
L1 Max
Min
R Max
Min
0.1120 0.1380 0.1640 0.1900 0.2160 0.2500 0.3125 0.3750 0.4375 0.5000 0.6350
0.061 0.074 0.087 0.102 0.115 0.132 0.172 0.212 0.252 0.291 0.371
0.051 0.064 0.076 0.088 0.101 0.118 0.156 0.194 0.232 0.270 0.347
0.075 0.092 0.109 0.127 0.144 0.156 0.203 0.250 0.297 0.344 0.469
0.070 0.087 0.103 0.120 0.137 0.149 0.195 0.241 0.287 0.334 0.456
0.061 0.075 0.085 0.095 0.115 0.130 0.161 0.193 0.224 0.255 0.321
0.051 0.065 0.075 0.085 0.105 0.120 0.151 0.183 0.214 0.245 0.305
0.099 0.140 0.156 0.172 0.188 0.219 0.256 0.312 0.359 0.406 0.500
0.084 0.109 0.125 0.141 0.156 0.188 0.234 0.281 0.328 0.375 0.469
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