3a nut thread thread class right-hand nut thread 0.313" stud thread thread length 0.812" overall length 24 stud thread thread quantity per inch 0.041 in. w by 0.064 in. deep slot on stud end shouldered unf nut thread thread series
3a thread class right-hand 0.517" thread length flat chamfer head style 0.219" hole diameter 18 thread quantity per inch navy special project unf thread series
2a thread class right-hand 2.875" thread length knurled no. 1 head style 16 thread quantity per inch navy special project cadmium surface treated unf thread series
2a thread class right-hand 0.408" thread length pan head style 32 thread quantity per inch head material pigmented w/color 6307 per fed std 595 passivate fastener surface treated unf thread series
2a thread class right-hand 0.218" thread length headless (setscrew) head style 44 thread quantity per inch point next thd undercut to 0.093 dia by 0.064 in. lg unf thread series
Used on medium mine protected vehicle - mmpv. 3a thread class right-hand 0.560" thread length flat chamfer head style 40 thread quantity per inch passivate surface treated unc thread series
3a thread class right-hand 0.367" thread length flat chamfer head style 0.044" hole diameter 36 thread quantity per inch cadmium surface treated unf thread series
2a thread class right-hand 0.702" thread length flat countersunk head style 18 thread quantity per inch phosphate screw surface treated unf thread series
Used on w/s: aircraft, viking s-3b. 0.516" inside diameter 0.606" outside diameter 0.033" major thickness spiral ring style 200000.0 pounds per square inch tensile strength rating
