1 size: 1/4- 42 2 material: carbom steel, stainless steel, alloy steel 3 quality: ISO, API 6H, API Q1 4 thickness:SCH 1 size: 1/4-42 2 material: carbom steel, stainless steel, alloy steel 3 quality: ISO, API 6H, API Q1 4 thickness:SCH10-SCHXXS Cap Product NameCapSize1/4-42Wall ThicknessSCH10-SCHXXSMaterialCarbon steel, stainless steel, alloy steelStandardASME, ASTM, DIN, MSS, JIS, EN ...