Stud bolts 1.Astm A193,Din931/933/975 2.Finish:Self Color,Black,Teflon Coating(PTFE) Black, White,Blueness Zinc,Nickel Plating Stud Bolts & Nuts Size 1/2"-2" Specification ASTM A193 B7/B16/B8M;ASTM A194 2H/8/8FProduct Description Product Name:STUD BOLT & U_BOLTS:1. Din 975, class 4.8, class 8.82. UNC, 2A, grade 2, grade 5, ASTM A193 B73. Size: M6 to M50 or 1/2 " to 2 ". 4. Length: 50mm to 4000mm ...