Boat Trailer Roller Bracket Clamp 20x20mm Stem Adjuster for 100x50mm Rail – Galvanised (SKU: CLAMP-ADJWB100X50)

The CLAMP-ADJWB100X50 Boat Trailer Roller Bracket Clamp is a heavy-duty, clamp-on style bracket designed to accommodate 20x20mm square roller stem posts. Engineered to fit 100x50mm trailer rails, this bracket offers a secure, no-drill solution for mounting and adjusting trailer rollers.

• Type: Clamp-on design – easy installation with no welding or drilling.
• Stem Compatibility: Fits 20mm x 20mm square roller stem posts.
• Rail Size: Suits 100mm x 50mm rectangular trailer frame rails.
• Material: Heavy-duty galvanised steel for long-term corrosion resistance.
• Weight: 1.45kg – solid construction for rough and marine environments.
• Applications: Perfect for large boat trailers, long-frame setups, or custom support systems.

This roller bracket clamp is a great choice when you need stability, adjustability, and rust resistance. With a reliable clamp-on mechanism, it simplifies roller installations, particularly for trailers frequently exposed to saltwater or heavy loads.

Frequently Asked Questions

• Q: What post size does this clamp support?
  A: It is designed for 20mm x 20mm square roller stem posts.
• Q: Will this clamp fit on other rail sizes?
  A: It is specifically made for 100x50mm trailer rails. For other sizes, please view our full clamp range.
• Q: Does it require drilling?
  A: No, this clamp-on model installs easily without drilling or welding.
• Q: Is it suitable for saltwater exposure?
  A: Yes, the galvanised coating provides strong corrosion protection in marine conditions.

Is This Clamp Right for You?

The CLAMP-ADJWB100X50 is an excellent choice if you:

• Have a trailer with 100x50mm rectangular rails.
• Need to install or replace a 20x20mm roller post.
• Prefer a clamp-on bracket that’s quick to install and resistant to corrosion.

Not suitable for:

• Frames smaller or larger than 100x50mm – may result in loose or improper fit.
• Users requiring round or custom roller post sizes.

Quick Installation Guide:

1. Position the bracket around the 100x50mm trailer rail.
2. Insert the 20x20mm roller stem into the bracket opening.
3. Tighten bolts firmly to secure both the clamp and roller post.
4. Double-check alignment and stability before towing.