Weld Stud, Mountable Stud Type Drawn Arc Weld Stud, Weld Stud Type CKL Collar Stud with Threaded Extension, System of Measurement Inch, Thread Size 3/8 In.-16, Weld Base Diameter 33/100 in, Thread Standard UNC, Thread Class 2A, Thread Direction Right Hand, Material Steel, Finish Bright (Uncoated), Standards ASTM A108, ASTM A29, Minimum Tensile Strength (PSI) 61,000 psi, Yield Strength 49,000 psi, Rockwell Hardness B71, Stud Welding Process Drawn Arc, Welding Processes Stud Welding