2110B Dunbier U-Bolt Square 67 x 90 x 12mm | Marine Trailer Part

🔧 Product Description

Dunbier Square U-Bolt 67 × 90 × 12mm - Single - Part Number: 2110B

A galvanised square trailer U-bolt with an internal width of approximately 67mm, an inside leg length of approximately 90mm and a 12mm rod diameter. It is used with the matching fish plate and nuts to clamp an axle, chassis member or suspension component.

⚙️ Key Features

• Square-form galvanised U-bolt

• Internal width approximately 67mm

• Inside leg length approximately 90mm

• Rod diameter 12mm

• Supplied as 1 u-bolt

📏 Specifications

• Dimension A - inside width: 67mm

• Dimension B - inside length: 90mm

• Rod diameter: 12mm

• Shape: Square

• Package: Bulk/single component

🔄 Cross Reference & Related Parts

• Dunbier: 2110B

• Matching fish plate and axle/chassis dimensions must be confirmed

• Dunbier current catalogue U-bolt dimensions are listed by inside width × inside length × rod diameter

• Pair-pack references use an S suffix; bulk/single references commonly use a B suffix

🚤 Trailer Compatibility & Application

• Suitable only where the U-bolt fits fully around the intended square beam without spreading

• Threaded length must allow the fish plate, washers and nuts to engage correctly

• Do not substitute a different rod diameter or bend radius without checking the suspension design

🔌 Function

Clamps the axle or structural member securely against the spring and fish plate or associated trailer bracket.

Common signs of wear or replacement:

• Threads are stretched, stripped or heavily corroded

• U-bolt legs are bent or spread

• Nuts repeatedly lose torque

• Rust has reduced rod diameter

• Axle or bracket has moved under the clamp

🛠️ Installation & Safety

• Do not reuse U-bolts that have been fully torqued, stretched or corroded

• Tighten both legs progressively and evenly

• Use matching nuts, washers and fish plate

• Confirm adequate thread engagement without bottoming the nuts

• Re-torque after initial loaded travel

📦 Condition

• Brand new Dunbier Marine Products trailer component

• Supplied as one single galvanised square U-bolt

• Supplied in original or equivalent packaging