3a thread class right-hand 0.770" thread length flat countersunk head style 13 thread quantity per inch cadmium screw surface treated unc thread series
3a thread class right-hand 0.130" thread length flat chamfer head style 18 thread quantity per inch passivate screw surface treated 0.120 in. hole drilled through longitudinal axis unc thread series
2a thread class right-hand 0.300" thread length flat chamfer head style 24 thread quantity per inch unthd portion of shank undercut 0.020 min. to 0.040 max deep unc thread series
3a thread class right-hand 0.906" thread length flat countersunk head style 11 thread quantity per inch navy special project zinc screw surface treated unc thread series
3a thread class right-hand 1.125" thread length oval countersunk head style 11 thread quantity per inch navy special project zinc screw surface treated unc thread series
3a thread class right-hand 0.309" thread length fillister head style 28 thread quantity per inch navy special project bearing surface of head chamfered 41 deg by 0.124 in. porm 0.003 lg unf thread series
3a thread class right-hand 0.563" thread length fillister head style 28 thread quantity per inch navy special project bearing surface of head CHAMFERED41.0 degrees by 0.124 in. min 0.127 in. max length unf thread series
Used on spec item. 3a thread class right-hand 0.544" thread length flat chamfer head style 28 thread quantity per inch cadmium screw surface treated unf thread series
Used on spec item. 3a thread class right-hand 1.240" thread length flat chamfer head style 24 thread quantity per inch cadmium screw surface treated unf thread series
2a thread class right-hand 0.750" thread length flat countersunk head style 28 thread quantity per inch cadmium screw surface treated unc thread series
2a thread class right-hand 0.188" thread length flat countersunk head style 36 thread quantity per inch passivate screw surface treated unf thread series
2a thread class right-hand 0.563" thread length flat chamfer head style 32 thread quantity per inch 0.050 to 0.060 in.radius, lower edge of head unf thread series
