Low Head Cap Screws

Nominal Size D A H J T F Tensile Strength Pounds Min. Tightening Torque Inch Pounds
Basic Screw Diameter Head Diameter Head Height Hex Socket Size Key Engagement Fillet
Max Min Max Min Min Max Min UNRC UNRF
8 0.1640 .270 .265 .082 .079 .0781 .060 .012 .007 2,310 2,440 19.4
10 0.1900 .312 .307 .095 .092 .0938 .072 .014 .009 2,890 3,300 33.5
1/4 0.2500 .375 .369 .125 .121 .1250 .094 .014 .009 5,250 6,000 77.9
5/16 0.3125 .437 .431 .156 .152 .1562 .120 .017 .012 8,650 9,550 156.0
3/8 0.3750 .562 .556 .187 .182 .1875 .145 .020 .015 12,800 14,450 273.0
1/2 0.5000 .750 .743 .250 .244 .2500 .184 .026 .020 23,400 26,350 615.0