3a thread class right-hand 1.3075" grip length 9300 double pounds per square inch shear strength grit blast top of head, with color light blue on thread end. unjf thread series
3a thread class right-hand 1.428" grip length 32 thread quantity per inch 7100 double pounds per square inch shear strength cadmium surface treated unjf thread series
Used on w/s:aircraft, hornet f/a-18. 3a thread class right-hand 0.870" grip length 21000 single pounds per square inch shear strength unjf thread series
Used on w/s: aircraft, eagle f-15. 3a thread class right-hand 0.4325" grip length 27600 double pounds per square inch shear strength unjf thread series