ONYUOKU 26-0671 & 3290-465 Blade Bolt & Washer Kit – 3 Sets for Toro, Exmark, TimeMaster | OEM Replacement

Overview

The ONYUOKU 26-0671 & 3290-465 Blade Bolt & Washer Kit is a compact, three-set solution designed to fit a wide range of Toro and Exmark mowers, including walk-behind, riding, and zero-turn models. Each set includes a hex head bolt and a Belleville spring washer, engineered to secure blades to the drive shaft while resisting loosening from vibration and normal wear. The bolt uses a 7/16-20 thread and comes finished in black oxide for corrosion resistance. The Belleville washer works under load to maintain tension, keeping the blade firmly in place even during demanding cuts. This kit also serves as a direct functional replacement for Toro part number 145-0411, offering familiar dimensions with the added locking performance of a washer without requiring any hardware changes to installation.

Why this kit stands out

• Direct OEM replacement and compatibility: Replaces Toro 26-0671 and washer 3290-465, matching factory specs for a secure fit.
• Robust materials: Black oxide coated steel screws provide an anti-rust finish that endures in humid mowing conditions.
• Locking performance under load: Belleville-style washers maintain consistent torque, helping prevent blade wobble during high-speed rotation.
• Full kit in hand: Three complete sets included, making blade maintenance or seasonal servicing straightforward and cost-effective.

Who can benefit

• Homeowners keeping Toro or Exmark mowers in operation across seasons will appreciate the straightforward replacement path and the durable build.
• Professional operators seeking quick, reliable maintenance without modifying hardware will find the three-set kit convenient for regular service cycles.

Model reach and installation notes

The kit is compatible with a broad range of Toro walk-behind and riding mowers, several Exmark models, and various TimeMaster, Recycler, and TimeCutter series units. It is designed for easy installation with no modification required; the 7/16-20 thread matches common OEM specs, and the combination of bolt plus Belleville washer provides locking performance that mirrors factory behavior. For reference, the kit is a direct functional replacement for Toro part 145-0411, a bolt-and-washer arrangement that fulfills the same locking role.

Durability in the field

• Heat-treated black oxide screws offer improved strength and corrosion resistance for long mowing seasons.
• The Belleville washers respond to cutting load by re-tensioning, helping maintain blade alignment as you work.

Summary

Whether you are replacing worn hardware or upgrading for more dependable performance, this ONYUOKU kit provides a practical, field-ready solution across multiple mower platforms. It emphasizes secure attachment, resistance to loosening, and straightforward installation—an option to consider as part of routine mower maintenance without making assurances about guaranteed outcomes.