2191B Dunbier U-Bolt Square 24 x 60 x 10mm | Marine Trailer Part
2191B Dunbier U-Bolt Square 24 x 60 x 10mm | Marine Trailer Part
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🔧 Product Description
Genuine Dunbier Marine Products Galvanised Square U-Bolt 24 × 60 × 10mm – Part Number: 2191B
A galvanised square U-bolt for clamping compatible trailer cross-members, drawbars, spring plates, brackets or accessory mounts. The nominal dimensions are 24mm inside width × 60mm leg length × 10mm 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
- 10mm 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: 24mm
- Leg length: 60mm
- Rod diameter: 10mm
- 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 Failure
- 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
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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