8000 lb 9/16" U-Bolt Kit for 3 1/2" Tube Trailer Axles

8000lb Trailer Axle U-Bolt Kit – Fits 3 1/2"Round Axles | 9/16" Nuts | For 2" Springs

Description:

This trailer axle U-bolt kit is designed for securely mounting  2" wide leaf springs to a 3- 1/2" round axle, making it a perfect fit for 8,000 lb axles. The kit includes 8" long U-bolts, heavy-duty mounting plates, and 9/16"-18 hex nuts. Whether you're building a new trailer or replacing worn components, this kit provides everything needed—except spring seats—for a secure and stable leaf spring setup.

Specifications:

• U-Bolts (Qty: 4): 8" Long
• U-Bolt Plates (Qty: 2): U-Bolt plates for 2" springs
• Hex Nuts (Qty: 8): 9/16"-18 thread
• Spring Washer(Qty: 8)
• Flat Washer(Qty: 8)
• U-Bolt Dimensions:
  • Length (L): 8" 
  • Width (A): 3"
  • Diameter (D): 9/16"
• Axle Compatibility: 3 1/2" round axle (typically for 8K axles)

Key Features:

• Complete Mounting Kit: Includes everything needed to attach leaf springs to the axle
• Heavy-Duty Fit: Ideal for high-load trailers and frequent use
• Broad Compatibility: Works with most 3 1/2" axles from 
• Spring Seats Required: Not included—sold separately
• Trailer Ready: A great choice for trailer builders or service techs

Ideal For:

• Equipment trailers
• Gooseneck trailers
• Utility and landscape trailers
• Agricultural or farm-use trailers
• Commercial cargo haulers