Boat Trailer Roller Bracket Clamp 1 Slot Bolt-On Stem Adjuster for Single Post (SKU: BOBRKT1)

The BOBRKT1 Boat Trailer Roller Bracket Clamp is a compact and reliable clamp designed for single-post roller systems. Built with a single-slot bolt-on design, this bracket securely holds a 20x20mm square post in place for accurate roller alignment and trailer support.

• Type: Bolt-on bracket with 1 slot for post adjustment.
• Post Compatibility: Designed for 20mm x 20mm square posts.
• Hole spacing: 63mm from centre to centre, suitable for standard trailer mounting patterns.
• Finish: Hot-dip galvanised steel for strong rust protection.
• Weight: 1.45kg – solid and sturdy, built to last.
• Ideal for: Keel rollers or small V-block systems requiring precise positioning.

This clamp allows for straightforward bolt-on installation and is perfect for trailers needing a firm grip on single stem posts. Whether you’re repairing a trailer or building a new one, this clamp keeps your roller setup stable and aligned, even on bumpy roads or salty ramps.

Frequently Asked Questions

• Q: What size post does this clamp fit?
  A: It is made for 20mm x 20mm square stem posts.
• Q: Does it include bolts and nuts?
  A: This model does not include bolts by default – check with your supplier for hardware options.
• Q: Can this be used in saltwater environments?
  A: Yes, the clamp is fully galvanised for corrosion resistance.
• Q: What is the hole-to-hole spacing?
  A: The centre-to-centre distance is 63mm.

Is This Clamp Right for You?

This single-slot bolt-on roller bracket clamp is a great fit if:

• You are using a 20mm x 20mm square post roller system.
• You need a bolt-on clamp with fixed hole spacing (63mm).
• You want a simple, durable, galvanised solution for marine trailer environments.

Not recommended for:

• Roller systems with round or larger posts.
• Setups requiring full adjustability or double-slot brackets.

Quick Installation Guide:

1. Align the 20x20mm post with the clamp slot.
2. Position the clamp on your trailer rail using the 63mm hole spacing.
3. Secure with bolts and nuts (not included).
4. Tighten firmly and test roller stability before towing.