TAPPING SCREWS
INDENTED HEX WASHER HEAD
 
All Dimensions in Inches
Screw
 Diameter
Width 
Across Flats
Width 
Across 
Corners
Head Height Washer
 Diameter 
 Washer
Thickness
Max. Min. Min. Max. Min. Max. Min. Max. Min.
4 .187 .181 .202 .060 .049 .243 .225 .019 .011
5 .187 .181 .202 .070 .058 .260 .240 .0.25 .015
6 .250 .244 .272 .093 .080 .328 .302 .0.25 .015
7 .250 .244 .272 .093 .080 .328 .302 .029 .017
8 .250 .244 .272 .110 .096 .348 .322 .031 .019
10 .312 .305 .340 .120 .105 .414 .384 .031 .019
12 .312 .305 .340 .155 .139 .432 .398 .039 .022
14 .375 .367 .409 .190 .172 .520 .480 .050 .030