3a thread class right-hand flush countersunk head style 0.620" grip length 6130 double pounds per square inch shear strength 1/64 "oversize shank" for repair work only. oversize shank unjf thread series
3a thread class right-hand flush countersunk head style 2.245" grip length 28600 double pounds per square inch shear strength aluminum surface treated unjf thread series
3a thread class right-hand flush countersunk head style 1.183" grip length 125000 single pounds per square inch shear strength passivate surface treated unjf thread series
3a thread class right-hand 0.433" grip length 7060 double pounds per square inch shear strength caution, restricted usage, for repair work only, color yellow on thread end. unjf thread series