Screw - 1/4-20 x 5/8" Hex Washer Head - 5MT,10MT,20MT,22MT,25MT,27MT,SD250 Solenoid Attaching (3300, 3502, 3503, 3504, 3505, 3507, 3508, 3510, 3525, 3527, 3535, 3551, 3552, 3553, 3554, 3556, 3560, 3562, 3563, 3564, 3565, 3569, 3571, 3601, 3627, 3629, 3630, 3631, 3633, 3635, 3649, 3660, 3664, 3675, 3678, 3686, 3689, 3696, 3697, 3725, 3733, 3742, 3764, 3800, 3838, 4000, 4038, 4162, 4174, 4191, 4192, 4196, 4208, 4274, 4276, 4283, 4297, 4307, 4347, 4386, 4393, 4398, 4500, 4506, 4565, 4569, 4778, 4963, 4995, 6147, 6303, 6305, 6307, 6308, 6309, 6310, 6311, 6313, 6315, 6316, 6317, 6318, 6319, 6324, 6327, 6330, 6331, 6339, 6343, 6375, 6376, 6413, 6415, 6416, 6426, 6536, 6541, 3508M, 3510M)