S & W Manufacturing Bsw-3A Level Mount, Swivel Stud, 5/8-11, 2-1/2 In.
Male-End Leveling Mount, Leveling Mount Type Swiveling Stud, Base Dia. 2 1/2 in, Height 5.25 in, Load Capacity 6,000 lb, Thread Size 5/8 In.-11, Construction Steel, Hex 7/8 in, Includes Jam Nut, Connection Type Threaded Stud, Bolt Length 4 in, Finish Yellow Zinc-Plated, Base Material Steel, Swivel Angle 15 Degrees, Base Shape Round, Series Level-It, Base Steel, Socket Material Not Applicable.