Specifications:114.3~339.7mm,WT5.21~22.22mm(4 1/2"~13 3/8") Thread:(STC),(LC),(BC) Length: less then ... 1- 235791012 4-1/2”11.6114.36.35PSLBPSLBPSLBPSLB1,2,3,4,5,6…… 13.5 7.37 -PSLBPSLBPSLB1,2,3,4,5,6……P—— blunt end ,S——STC,L ... ——LC,B--------BCcommon difference OD common difference is+1%D~-0.5%DWT ...