Doc King Front Binding Post Assembly - Brass - Assembly Includes: (1) Brass Binding Post .375" (3/8") Dia X .742" Long, Tapped For 8-32 Mounting, (1) 8-32 X 1 1 /4" Brass Contact Screw, (1) 8-32 X 1/2" Button Head Cap Screw, (2) Black Nylon Shoulder Washers, (2) #8 Copper Flat Washers, (1) 8-32 X 1/4 "Button Head Cap Screw, And (1) 1/8"Dia Nylon Ball To Lock The Contact Screw In Place. These Are The Exact Reproduction Of What Doc King Used On His Machines. All Designs Courtesy Of Jerry Riegger.