Spring U-Bolts Kit

Complete Leaf Spring U-Bolt Kits for Secure Trailer Suspension

Our comprehensive range of high-quality galvanised leaf spring U-bolt kits provides everything needed to securely mount your trailer axle to leaf springs, ensuring safe and reliable performance on the road.

Extensive Range for All Common Axle Types

Our collection features complete U-bolt kits to suit various axle sizes and configurations:

• 39mm Round Axle Kits: Available with either 40x100mm or 40x115mm U-bolts for perfect fitment to standard round axles.
• 40mm Square Axle Kits: Choose from 40x100mm or 40x115mm U-bolt options to suit smaller square axles.
• 45mm Square Axle Kits: Available with either 45x125mm or 45x140mm U-bolts for medium-duty square axles.
• 50mm Square Axle Kits: Select from 50x125mm or 50x140mm U-bolt options for heavy-duty square axles.

Each kit is designed for specific axle dimensions, ensuring proper alignment and secure attachment for your trailer’s suspension system.

Comprehensive Kit Contents

Every U-bolt kit includes all components necessary for a complete installation:

• Four Galvanised U-Bolts: Precision-manufactured U-bolts in the appropriate size and shape for your specific axle.
• Eight Galvanised Nuts: High-quality nuts for secure fastening of each U-bolt end.
• Eight Galvanised Spring Washers: Helps prevent loosening due to vibration during trailer use.
• Two Galvanised Axle Saddles: Provides proper seating for the axle and distributes clamping force evenly.
• Two Galvanised Fish Plates: Sits beneath the leaf spring to distribute pressure and prevent spring damage.

All components are manufactured from high-grade materials and hot-dipped galvanised for exceptional corrosion resistance in challenging environments.

Superior Construction and Benefits

Our spring U-bolt kits are engineered for reliable performance:

• Hot-Dipped Galvanised Finish: Provides superior corrosion protection compared to electroplated options, extending service life considerably.
• Precision-Cut Threads: Ensures smooth nut installation and reliable tightening without thread damage.
• Uniform Bend Radius: Guarantees consistent pressure distribution for secure axle attachment.
• Complete Matching Components: All parts are designed to work together for optimal performance and ease of installation.

Applications and Advantages

Our premium spring U-bolt kits are ideal for a wide range of trailer applications:

• New Trailer Construction: Perfect for building new trailers with proper suspension components.
• Suspension Upgrades: Ideal when upgrading or replacing worn suspension parts.
• Axle Replacement: Ensures proper mounting when replacing damaged or upgraded axles.
• Preventative Maintenance: Replace corroded or damaged U-bolts before failure occurs.

Choosing our quality U-bolt kits offers significant advantages:

• Enhanced Safety: Properly secured axles reduce the risk of suspension failure during transportation.
• Improved Durability: Corrosion-resistant galvanised finish ensures long-lasting performance.
• Complete Solution: Having all matching components in one kit ensures proper installation without missing parts.
• Professional Results: The same high-quality components used by professional trailer manufacturers.

Finding the Right U-Bolt Kit

At Superior Trailer Parts, we’re committed to helping you find the perfect spring U-bolt kit for your specific trailer. Simply identify your axle type and dimensions, and select the corresponding kit for a perfect fitment.

Browse our selection of premium spring U-bolt kits today and ensure your trailer’s suspension is secured with the highest quality components available.