"STEEL QQ-S-634 COMP 1018-1025 OR STEEL QQ-S-637 COMP 1115-1119 OR B1111-B1113,1.437 IN. 0/A LG,0.505 IN. MIN 0.510 IN. MAX BORE DIA,1.312 IN. BORE DEPTHHEX. WRECHING FACILITY,0.750 IN. W ACROSS FLATS,0.250 IN. H,0.594 IN. FROM THD END,0.687-16NS-3A THD SIZE,0.468 IN. THD LG"