Used on an/alq-131,block 1. 0.126" hole diameter 0.315" outside diameter 0.020" material thickness material astm a-684/astm a-505 astm a-506/astm a-507 cadmium surface treated spring tension
2b thread class right-hand 0.375" material thickness 18 thread quantity per inch curved in 120 deg angle at a 4.375 in. radius outside cadmium surface treated