3a thread class right-hand 0.625" thread length double hexagon w/hole head style 0.190" grip length 32 thread quantity per inch screw machine same as MS21287 except for thread size and/or drilled hea unc thread series
flush (flat) countersunk (included angle - less than 135 deg w or w/o chamfer) head style 49000 single pounds per square inch shear strength cadmium surface treated
3a thread class right-hand 1.067" grip length 32 thread quantity per inch 125000 single pounds per square inch shear strength white paint on head passivate surface treated unjf thread series
2a thread class right-hand 0.500" thread length flat chamfer head style 24 thread quantity per inch groove in head with diameter of 0.396 in. min. passivate surface treated unf thread series
