Description
When your trailer’s riding rough or making noise over bumps, worn spring bolts are often the culprit. This heavy-duty spring bolt is what connects your double eye or slipper style springs to their hanger brackets—and when these bolts get loose or worn, your whole suspension goes out of whack. This replacement bolt gets your trailer tracking straight and riding smooth again.
What You’re Getting
- 9/16-18 x 3 inch size fits most common agricultural trailer applications
- Knurled shoulder design prevents the bolt from spinning in the hanger bracket
- Grade 5 steel construction handles the constant stress and vibration
- Precise threading ensures a secure fit with standard lock nuts
- Direct replacement for worn or damaged spring mounting bolts
Built for Real Farm Work
This bolt is designed for agricultural trailers, grain carts, and other farm equipment that uses leaf spring suspension systems. Whether you’re hauling grain to the elevator, moving hay bales around the farm, or pulling equipment between fields, this bolt keeps your springs properly mounted and working like they should.
Made to Last
Farm trailers take a beating on rough field roads and gravel lanes. This bolt is made from high-grade steel that resists fatigue and corrosion, while the knurled shoulder is a smart design feature that prevents the bolt from working loose—something that can cause expensive damage if it fails.
Good to Know
The knurled shoulder is the key feature here—it grips the inside of the hanger bracket and stops the bolt from rotating when you’re tightening the nut. Always use a proper lock nut with this bolt, and check your spring bushings while you’ve got things apart. A little anti-seize on the threads makes future removal much easier.




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