Screw, Cap, HS, G8, 1/4"-20 x 3/4", Start Year: 05/01/1979

Used in models:550, 555, 655A, 555B, 555A, 455, 715B-SERIES, 816, 716, 818B, L250, 1050, 1003, 1047, 1051, 1035, 1049, 1030, 1048, 1040, 1045, 1012, 1002, 1046, 53A, BB900, TR98, TR96, TR87, TR86, TR97, TR99, TR89, 396, 595, 393, 379, 7610S, 5610, 7810S, 6810S, 7010, 7610O, 5610S, 6610O, 8010, 6610S