3a thread class right-hand 1.000" thread length flat chamfer head style 40 thread quantity per inch selected item drawing passivate surface treated unc thread series
3a thread class right-hand 1.110" thread length hexagon head style 32 thread quantity per inch head has spherical projection 0.130 in. o/a dia; 0.120 in. o/a lg; 63 microinch finish unf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 24000 single pounds per square inch shear strength anodize surface treated