Cap Screw Kit / 240 Piece KitPack Size:1NHC 287-1434, EG/F1 9216203Contains: 240 pieces, 20 of 1/4"-20 x 1", 20 of 1/4"-20 x 1/2", 10 of 1/4"-20 x 2 1/2", 20 of 1/4"-20 x 3/4", 120 of 1/4"-20 nuts, Includes the following:, 10 of 1/4"-20 x 2", 20 of 1/4"-20 x 1 1/4", Grade 5, 20 of 1/4"-20 x 1 1/2"