3a thread class right-hand 0.281" thread length flat countersunk head style 40 thread quantity per inch passivate screw surface treated unc thread series
3a thread class right-hand 0.344" thread length fillister head style 0.040" hole diameter 36 thread quantity per inch head of screw black enamel finish unf thread series
3a thread class right-hand 0.218" thread length fillister head style 0.031" hole diameter 56 thread quantity per inch nickel screw surface treated unf thread series
3a thread class right-hand 0.076" thread length flat chamfer head style 80 thread quantity per inch navy special project nickel screw surface treated unf thread series
2a thread class right-hand 0.283" thread length pan head style 32 thread quantity per inch passivate screw surface treated furnished with 1 black nylon B00t washer unc thread series