... /16IR/22IR etc.. Items are ISO,A,AG,G,W,UN,NPT,ACME,API et Threaded insert SIZE RANGES ARE ... UN LDCTNMG160408-TF LF901816 ER 14 W K1516 IR 12 W LDCWNMG080404-TF LF901116 ER 14 W LDA16 IR 14 BSPT LDAWNMG080404-TF ... UN LDC16 IR 14 NPT LDCCNMG120404-TF LF901116 ER 16 W LDC16 IR 14 UN LDCCNMG120404-TF LF901816 ER 18 ... 16 UN LDC 16 ER 19 BSPT LDC16 IR 16 W LDCAll our threading inserts are with PVD coating,all ...