STUD BOLT Technical Features: STUD BOLT Technical Features Standard ANSI/ASME Size From 1/4 to 4 inches (M8 to M48) Materials A193 B7/A194 2H, A193 B7M/A194 2HM, A193 B8/A194 8, A193 B8M/A194 8M, A193 B16/A194 4/7, A320 L7/A194 4/7, A320 L7M/A194 7M Surface black, galvanized, nickel, cadmium plated; Xylan Fluoroploymer Coated