Stens 285-039 Hex Head Screw Replaces: AYP: 138776, 157722, 173984, 584953901 Husqvarna: 532138776, 532157722, 532173984 Fits AYP: pp 44" decks, 9540052-61 spindle assembly Use with 285-441 and 285-456 spindle assemblies