06500840 – Locking Center Flange Nut 5/16-18 (Genuine OEM Ariens / Gravely Part) The 06500840 locking center flange nut (5/16-18) is a genuine OEM Ariens / Gravely fastener designed to provide secure, vibration-resistant retention in mower deck, bagger, blower, and accessory mounting applications. This nut features an integral flange to distribute load evenly across mounting surfaces and a locking center design to resist loosening from vibration and repeated operation. The zinc clear chromate (ZCC) finish provides corrosion resistance while maintaining OEM appearance and long-term durability. Manufactured to Ariens and Gravely factory specifications, the 06500840 flange nut ensures proper fit, thread engagement, and holding strength in demanding residential and commercial mowing environments. Key Details Manufacturer Part Number: 06500840 Part Name: Nut – Locking Center Flange Brand: Ariens / Gravely Thread Size: 5/16-18 UNC Style: Locking flange nut Finish: Zinc Clear Chromate (ZCC) Part Type: OEM fastening hardware Function: Secures structural, deck, bagger, and accessory components Installation: Direct OEM replacement Function & Applications The 06500840 locking flange nut is commonly used where vibration resistance and load distribution are critical, including: Bagger frame and mounting hardware Blower upfit kit pump mounts and covers Deck and accessory brackets Structural fasteners exposed to vibration and debris The integrated flange eliminates the need for a separate washer, while the locking center helps maintain torque retention during operation. Compatibility This OEM Ariens / Gravely nut is used across a wide range of equipment and attachments, including but not limited to: Blower Upfit Kits 42", 48", 52", and 60" blower pump mount and cover assemblies Bagger Systems Edge / ZT baggers Ikon & ZT X non-power baggers Rear 2-bag and 3-bag bagger assemblies Equipment Platforms Gravely ZT, ZT XL, ZT X, ZTX, Pro-Turn, and related models Multiple deck sizes and production ranges It appears throughout bagger frames, blower mounts, accessory brackets, and hardware assemblies across numerous Ariens and Gravely models. Why Use Genuine OEM 06500840 Using the OEM 06500840 locking flange nut ensures: Correct 5/16-18 thread fitment Built-in vibration resistance Proper load distribution without washers Corrosion protection with OEM finish Compatibility with factory torque specifications This nut delivers OEM-level reliability and retention, making it the correct replacement choice for Ariens and Gravely mower and accessory assemblies.
