STUD BOLTS Types With or without nut Standards/Grades Bolt: ASTM A 193 B7, etc. Nut: ASTM A 194 2 H, etc. Dimensions / Tolerances / Testing (according to Standard) Outside Diameter: M12 to M60 1 m random lengths, cut lengths (with nut) 50 mm to 400 mm according to dia. ISO, Sellers (UNC) threads Finishing On request: Zinc plating, chromating Certification 3.1 B according to EN 10 204 Applications Flange assemblies Applications -