20 Pcs CPU Heatsink Retainer Bracket Holder for Intel P4 Socket 478 Product Name : CPU Motherboard Bracket Backplate for Socket 478;Screw Diameter : 4.8mm/0.19" Screw Hole Center Distance : 7.6 x 6cm/ 3" x 2.4"(L*W);Total Size : 8.9 x 7.6 x 2.5cm/ 3.5" x 3" X 1" (L*W*H) Material : Plastic;Color : Black Net Weight : 296g Package : 20 x Backplate Bracket for Socket 478 Motherboard(NON-OEM)