Elastic Type Hex Lock Nut 1/2-13 Replacement for SCAG 04021-07
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I needed a forklift part and wasn’t sure which one fit. They asked for the model and serial number, got back to me quickly, and made sure I ordered the right one. Really helpful.
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Product Overview
This elastic type hex lock nut is a reusable, self-locking fastener designed for use with SCAG mowers and other outdoor power equipment. The 1/2"-13 thread lock nut provides secure vibration resistance to keep bolts tight during operation, making it ideal for maintaining blade spindles, pulleys, and deck hardware.
Key Features & Performance
- Elastic locking collar prevents loosening from vibration and thermal cycling
- Grade 8 construction for high strength and durability
- Reusable up to multiple removal cycles without losing locking torque
- Precise 1/2"-13 thread size for direct replacement of original nuts
- Zinc plated finish resists corrosion in outdoor environments
Common Uses
- Securing cutting deck blades on SCAG mowers
- Fastening pulley assemblies on zero-turn lawn tractors
- Maintaining spindle bolts on commercial turf equipment
- General purpose lock nut applications requiring vibration resistance
Technical Specifications
- Part Number(s): 04021-07
- Thread Size: 1/2"-13
- Type: Elastic Lock Nut
- Material: Steel, Grade 8
- Finish: Zinc Plated
Frequently Asked Questions
Q: Can this elastic lock nut be reused? A: Yes, it is designed for multiple reuse provided the elastic collar has not been worn or damaged from overtightening.
Q: Will this nut fit all SCAG mower models? A: It fits any SCAG model that uses a 1/2"-13 thread lock nut as original equipment; verify your part number matches 04021-07.
Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.