3296-67 NI Lock Nut – Toro Genuine OEM Part (.750-16 Steel YZ Heavy Thin) The Toro 3296-67 NI Lock Nut (NUT-LOCK, NI) is a genuine OEM replacement locking nut designed to provide secure fastening and superior vibration resistance in Toro outdoor power equipment. This nylon-insert (NI) lock nut features a .750-16 thread size and a heavy-duty thin-profile design, making it ideal for high-load applications where space is limited and loosening from vibration is a concern. Constructed from durable steel with a YZ (yellow zinc) corrosion-resistant finish, the Toro 3296-67 lock nut is built to withstand demanding outdoor and commercial operating conditions. Product Details Part Number: 3296-67 Brand: Toro Part Type: NI Lock Nut (Nylon Insert Lock Nut) Thread Size: .750-16 Material: Steel (STL) Finish: YZ (Yellow Zinc Coated) Style: Heavy Duty, Thin Profile Lock Nut Application: Secure Equipment Fastening OEM Status: Genuine Toro OEM Part Condition: New Function This Toro NI lock nut is designed to: Prevent loosening caused by vibration and heavy equipment operation Provide secure locking retention with nylon insert design Support heavy-duty assemblies with a thin-profile configuration Replace worn, stripped, or missing OEM lock nuts Maintain safe and reliable equipment performance Compatibility Used across many Toro lawn and garden equipment applications, including: Lawn mowers Riding mowers Zero-turn mowers Deck, frame, and drive system assemblies Commercial turf equipment service and repair needs ⚠️ Always verify thread size and nut specification with your Toro parts diagram before ordering to ensure correct fitment. Installation / Usage Thread the 3296-67 lock nut onto the bolt or stud Tighten securely using proper tools Torque to Toro manufacturer specifications as required Replace nylon lock nuts after repeated removal for best retention Maintenance Tips Inspect locking nuts regularly for corrosion or thread damage Replace lock nuts that have lost locking resistance Use OEM hardware for proper fit and safe operation Avoid overtightening beyond specified torque values
