Used on aircraft application. 3b thread class right-hand 12 thread quantity per inch undercut at end of internal thd 0.115 in. min/0.135 in. max w, 1.188 in. min/1.217 in. max dia, two lockwire holes 0.065 in. min/0.075 in. max dia drilled thru opposite corner of hex silver surface treated
Used on aircraft application. 3b thread class right-hand 16 thread quantity per inch undercut at end of internal thd 0.084 in. min/0.104 in. max w, 0.750 in. min/0.780 in. max dia, two lockwire holes @0.042 in. min/0.052 in. max dia drilled thru opposite corners of hex