The Ariens OEM 06500920 Hex Nut is a genuine factory replacement fastener designed to provide secure, reliable fastening for mower deck, spindle, and chassis assemblies on select Ariens and Gravely equipment. Manufactured from durable carbon steel with a corrosion-resistant zinc coating, this fine-thread nut delivers superior holding strength, precise fitment, and excellent resistance to vibration in demanding mowing conditions. Ideal for maintenance, repairs, and equipment restoration, it helps maintain factory performance, assembly integrity, and long-lasting reliability.