Manfrotto R116,137 Overview These two 3/8″-16 Quick Release Plate Screws from Manfrotto atttach your camera to your quick release plate. They are replacement or spare parts for select quick release plates. Replacement part for the following quick release plates: 293, 303SPH, 316, 357, 357PLONG, 357PLV, 410PL, 454, 500A, 500AH, 501, 501PL, 504PLONG, 509PLONG, 510-10,5, 510-8,5, 561B, 577, and 595CLA. UPC: 719821246121 In the Box Manfrotto 3/8″-16 Quick Release Plate Screws (2-pack)