Screw, HH, #10-24 x 1/2", Start Year: 02/01/1974

Used in models:3500, 550, A64, 555, A625, 655A, 3400, 6500, A66, 555B, 3550, 555A, 4610SU, 455, H48, 3910V, 5340, 4130NO, 7810O, 3230, 3150, TW20, 3100, 7600C, 8000-SERIES, 5610, 9200, 6600, 3430, 3930N, TW10, 4110V, 334, 335, TW30, 3000-SERIES, 3110, 3910R, 6600C, 9000-SERIES, 4830, 3910N, 2910, 8600, 3930NO, 3055, 7610O, 3610, 7000-SERIES, 3300, 2610, 2610V, 6710, 9600, 3910H, 6410, 3610V, 6700, 3330, 5190, 530A, 4630NO, 5900, 7700, 8700, 6610O, 5200, 8200, 3930H, 230A, 3190, 5000-SERIES, 5600, 4110O, 4610N, 2310, 5110, 234, 6600O, 5030, 3310, 9700, 5030O, 7710, 4110N, 4830O, 7200, 4610NO, 5100, 4830N, 6810, 7410, 4110NO, 4610V, 3120, 7100, 4630O, 2810