Husqvarna Hex Flange Lock Nut No. 873900700. This is an original husqvarna nut that measures 7/16 - 14. Replaces part number 873 90 07-00 and 873-90-07-00.
Husqvarna Deck Screw No. 817-49-06-36. This is an original husqvarna screw that measures 3/8-16 X 2.25. Replaces husqvarna part numbers 817490636 and 817 49 06-36.