flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 41000 single pounds per square inch shear strength anodize or chromate surface treated
3a thread class right-hand 1.120" thread length fillister head style 28 thread quantity per inch furnished with unthreaded neck 0.151 min. to 0.161 max. length; 0.214 min. to 0.224 max. dia. unf thread series
2a thread class right-hand 0.188" thread length flat countersunk head style 64 thread quantity per inch anodize screw surface treated unf thread series
2a thread class right-hand 0.336" thread length flat countersunk head style 56 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 1.303" thread length flat countersunk head style 32 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.338" thread length pan no. 2 head style 0.928" grip length 32 thread quantity per inch passivate surface treated unjf thread series
3a thread class right-hand 1.250" thread length flat chamfer head style 0.103" hole diameter 24 thread quantity per inch cadmium surface treated unrf thread series
3a thread class right-hand 0.518" thread length spline drive shear head head style 0.740" grip length 20 thread quantity per inch cadmium surface treated unjf thread series