Pack of twelve self tapping hex head screws, replaces 173984, 138776, 157722, 532 13 87-76, 532 15 77-22, and 532 17 39-84. Fits 44" cut decks, 9540052-61, spindle assembly for 18 HP engines. Selt tapping mounting bolts. Length: 1 1/4" and Thread: 5/16"-18.
