Straight Up Heavy Duty Blade Bolt Kit Replacement 2.5 Inch Length 118 National Fine Thread With 15 Inch Shoulder Fits Lawn Mower Drive Shafts Wicked Solid Hardware Gets The Job Done

Heavy Duty Lawn Mower Blade Bolt Kit Replacement Set
✔️ 1-1/8 NC thread, 2.50L overall, 0.5 head thick, fits 1.5 R bore

This single replacement bolt kit secures rotary mower cutting decks to tractor drive shafts and industrial brush hog frames. Designed to match OEM driveline specs, it works directly as an alternative to equivalent part numbers 404-2294A, 49327, 2294A, and 57188. Built to handle heavy vibration and turf debris, it keeps your blades spinning true while you tackle overgrown fields. The set comes ready to install since it includes the main threaded stud, matching hex nut, and a reliable steel lock washer to save you a trip back to the shop.

✅ 1-1/8 national fine thread pitch runs along the shank
✅ 2.50 inch total length measures straight from top to tip
✅ 0.5 inch flat head thickness clears tight mower deck gaps
✅ Built-in keyway aligns perfectly on 1.5 inch round drive bores
✅ Complete hardware ships with nut and anti spin lock washer
✅ Black oxide coating shields against moisture and ground contact

💡 How do you properly size a replacement blade bolt for a tractor mower?
This handy swap keeps your deck spinning true and saves you from busting expensive drive shaft parts. Here is how to nail the perfect fit every time:
- Verify the pitch matches 1-1/8 national coarse or fine standards before you pick up the wrench
- Measure the exact head to tip distance since even a quarter inch throwing off cutter alignment
- Confirm the bore diameter equals 1.5 inch round so the internal splines catch and transfer torque smooth
- Grab fresh lock washers to beat vibration and stop the bolt from sliding loose while you work.

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