Description
4″ FLAT BRACKET 17MM W/ 6″ X 18MM SQ. STEM
Engineered for compact trailer installations, this 4-inch galvanised single-post centre roller bracket fits an 18mm square stem and supports standard 16mm spindle rollers. Ideal for small boat trailers, jet ski trailers, and marine support rigs, it provides corrosion-resistant durability and easy bolt-on installation.
Key Features:
Single-post design – Direct bolt-on to 18mm square post (commonly used in centre-line setups)
Marine-grade galvanising – Long-lasting rust protection suitable for saltwater
Roller compatible – Fits 4″ keel or flat rollers with 16mm bore
Simple installation – Bolt directly into your trailer frame brackets
Australian marine fit – Sized to match common local trailer hardware dimensions
Applications:
Ideal for small-size trailers and watersport gear support
Compact setup for 100mm rollers requiring 16mm spindles
Suitable for aluminium and steel trailer cross-members
Included:
1 × Galvanised 4″ Single-Post Centre Roller Bracket
Roller, spindle, washers, and bolts are sold separately.
