2160B Dunbier U-Bolt Square 52 x 145 x 12mm | Marine Trailer Part

🔧 Product Description

Genuine Dunbier Marine Products Galvanised Square U-Bolt 52 × 145 × 12mm - Part Number: 2160B

A galvanised square U-bolt for clamping compatible trailer cross-members, drawbars, spring plates, brackets or accessory mounts. The nominal dimensions are 52mm inside width × 145mm leg length × 12mm rod diameter. The formed profile is intended to sit squarely around the matching trailer section without being forced or spread.

⚙️ Key Features

• Square profile for the matching trailer tube or mounting section

• Galvanised finish for improved corrosion resistance in marine-trailer service

• 12mm threaded rod provides a robust clamping section

• Suitable for replacement of stretched, bent or heavily corroded original U-bolts

• Supply format: bulk single U-bolt

📏 Specifications

• Inside width: 52mm

• Leg length: 145mm

• Rod diameter: 12mm

• Shape: Square

• Packaging: bulk single U-bolt

• Nuts and washers are included only where stated with the supplied package

📋 Supplied Components

• 1 × U-bolt

🔄 Cross Reference & Related Parts

• Use with matching galvanised nuts, flat washers and spring or mounting plates

• Comparable U-bolts must match shape, inside width, leg length, rod diameter, thread and material grade

• Do not substitute an undersized or opened-out U-bolt to fit a larger trailer section

🚤 Compatibility & Application

• Compatible Dunbier trailer sections and mounting brackets matching the stated dimensions

• Measure the actual trailer section and mounting-plate hole centres before ordering

• Both legs must pass through the mounting plate without side loading or forced spreading

• Tighten the nuts evenly in stages to the trailer or component manufacturer specification

• Recheck torque after the first trip and during scheduled trailer servicing

🔌 Function

Clamps a trailer component securely around a structural section and transfers load through the mounting plate, bracket or spring assembly.

Common signs of wear, damage or replacement required:

• Threads are stretched, stripped, cross-threaded or heavily corroded

• U-bolt is bent, opened out or no longer square to the mounting plate

• Visible necking, cracking or loss of rod diameter

• Nuts repeatedly lose torque

• Mounting plate or trailer section moves under load

📦 Condition

• Genuine Dunbier Marine Products part

• Brand new

• Supplied in original or equivalent packaging