"STEEL,QQ-S-634 1015 TO 1025 OR STEEL,QQ-S-637 B1112,B1113 1213 OR 1215,SURFACE ZINC PLATED ALL OVER QQ-Z-325 TYPE 2 CLASS 1,18.910 IN. LG 0.249 IN DIA OF LARGE END,2 KEYS 0.310 IN. LG,0.060 IN. W,OPPOSITE END TAPERED 15 DEG 1.780 IN. FROM END,0.153 IN. DIA WITH 1 KEY 0.500 IN. LG,0.060 IN. W"