Semi-Hex, Flat Head (Imperial)
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Grip Range

L M

Hole Size

B S
#6-32 .020-.080
.080-.130
.385
.435
.249 .250 .375 .027
#8-32 .020-.080
.080-.130
.385
.435
.249 .250 .375 .027
#10-24 .020-.130
.130-.225
.435
.535
.280 .281 .390 .027
#10-32 .020-.130
.130-.225
.435
.535
.280 .281 .390 .027
1/4-20 .027-.165
.165-.260
.585
.685
.374 .375 .510 .030
5/16-18 .027-.150
.150-.312
.685
.845
.499 .500 .655 .035
3/8-16 .027-.150
.150-.312
.685
.845
.499 .500 .655 .035