2a thread class right-hand 0.700" thread length flat extended washer head style 40 thread quantity per inch nickel screw surface treated slot on threaded end 0.080 in dia. uns thread series
2a thread class right-hand 1.072" thread length flat countersunk head style 32 thread quantity per inch cadmium screw surface treated unf thread series
3a thread class right-hand 0.245" grip length 5380 double pounds per square inch shear strength furnished with collar cadmium surface treated unjf thread series
3a thread class right-hand 2.245" grip length 9300 double pounds per square inch shear strength furnished with collar (shear off type) . cadmium surface treated unjf thread series
3a thread class right-hand flush countersunk head style 0.557" grip length 9300 double pounds per square inch shear strength furnished with one collar (shear off type) cadmium surface treated unjf thread series