Manufacturing method Cold Drawn or Hot-rolled Seamless, ERW, LSAW Size (OD) 4 1/2", 5", 5 1/2", 6 5/8", 7", 7 5/8", 8 5/8", 9 5/8", 10 3/4", 13 3/8", 16", 18 5/8", 20", 30¡± Grade J55, K55, N80, L80-1, L80-9Cr, L80-13Cr, C90, T95, P110, P110-13Cr, Q125 API Connections Round thread(8tpi, STC and LTC), Buttress thread (5tpi, BTC) Premium Connections HSM, TP-CQ, RJS (compatible with VAM and HSC) Length range Range 1, 2, 3 Technical modifications Special clearance; For extra clearance applications Special bevel; 20¡ãbevel Slotted (Screen casing). Bundle by steel belt with ends protector.