3a thread class right-hand flush countersunk head style 0.760" grip length 28 thread quantity per inch 95000 single pounds per square inch shear strength anodize surface treated unjf thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 1.219" grip length protrusion on head cadmium sleeve surface treated
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 26000 single pounds per square inch shear strength anodize or chromate surface treated
2a thread class right-hand flat chamfer head style 32 thread quantity per inch supply with 2 spring washers, carbon steel per aisi 1050; wave shaped; finish cadmium per qq-p-416, ty 2 cl 2 anodize head surface treated unf thread series