'Weld Stud, Bottom Projection, Steel, Plain Finish, Thread Size 1/4-20, UNC Thread Type, Right Hand Thread Direction, Thread Length 1.210 In, Length under Head 1 1/4 In, Head Dia 0.563 In, Head Height 0.078 In, Projection Width 0.100 In, Projection Height 0.040 In, Package 100'