5,200–7,000 lb Axles, Fits 3" Round Axle, 9/16"-18 Thread Grade 5 U-Bolt Kit –7” U-Bolts
5,200–7,000 lb Axles, Fits 3" Round Axle, 9/16"-18 Thread Grade 5 U-Bolt Kit –7” U-Bolts is backordered and will ship as soon as it is back in stock.
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Care information
Care information
To ensure optimal performance and extend the service life of your new trailer components, please follow these care guidelines after purchase:
- Before installation, check all parts for shipping damage or missing components. Do not install damaged parts.
- Always use correct tools and torque settings. Improper installation can lead to premature wear or failure.
- For bearings, suspensions, and brake components, apply high-quality trailer grease before first use if not pre-greased.
- Some parts (like brake assemblies) require a short break-in period to achieve full performance. Follow manufacturer instructions for best results.
- Recheck fasteners, grease levels, and moving components after 100 miles of towing, then at regular intervals.
- After exposure to water, road salt, or mud, clean and dry parts thoroughly. Apply anti-rust treatment if needed.
- If storing unused parts, keep them in a dry, sealed container away from moisture and direct sunlight.
Delivery and Shipping
Delivery and Shipping
Handling Time: Orders ship out within 1 business day after payment is received.
Shipping Methods: We use trusted carriers like UPS, FedEx, or USPS based on package size and destination.
Delivery Time: Estimated delivery within 2–6 business days (U.S. domestic orders).
Tracking: A tracking number will be provided once your order is dispatched.
5,200–7,000 lb Axles, Fits 3" Round Axle, 9/16"-18 Thread...
Secure, Reliable, and Built to Last —TRAILER SUPPLIES U-Bolt Kits are built for strength, fit, and long-term durability. Designed to securely fasten your trailer’s leaf springs to 3" round axles, this kit includes 7-inch U-bolts, Grade 5 nuts, and reinforced mounting plates—all precision-matched to support 5,200–7,000 lb trailer axles. Kit Includes:
- 4 × U-Bolts – 7" long, fits 3" round axles, 9/16" thread
- 2 × Mounting Plates – Reinforced design for even clamping
- 8 × Grade 5 Hex Nuts
- 8 × Lock Washers
Key Features:
- Axle Compatibility: Fits 5,200–7,000 lb trailer axles with 3" round tubes
- Heavy-Duty Build: Grade 5 steel U-bolts for superior strength and vibration resistance
- Secure Mounting: Keeps leaf springs properly aligned to axle under heavy loads
- Corrosion Protection: Zinc-plated finish resists rust, moisture, and road salt
- Professional Fit: OEM-level specifications for quick, accurate installation
- Maintenance Tip: Replace U-bolts whenever installing a new axle or springs to maintain maximum clamping force
Ideal Use: Utility trailers, livestock haulers, RV trailers, equipment and flatbed trailers.
Payment & Security
Payment methods
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