... /22ER 11IR/16IR/22IR etc.. Items are ISO,A,AG,G,W,UN,NPT,ACME,API et Threaded insert SIZE RANGES ARE ... 11ER/16ER/22ER11IR/16IR/22IR etc..Items are ISO,A,AG,G,W,UN,NPT,ACME,API et1.tolerance below +0.01mm ... LDC16 IR 8 UN LDC 16 ER AG 60 K1516 IR 8 W LDC 11 IR 0.5 ISO LDA22 ER N60 ... .We can satisfiy all customers' requirements Threaded insert( ISO,A,AG,G,W,UN,NPT,ACME,API )