Description
4½” FLAT BRACKET 17MM W/ 6″ X 18MM SQ. STEM
The 4½-inch galvanised single-post centre roller bracket is crafted to fit 16mm spindles and 18mm square trailer stems. Engineered for compact rollers common on smaller boat trailers and PWC setups, it offers rugged corrosion resistance and easy bolt-on installation in marine environments.
Key Features:
Single-post configuration – Straight mount on 18mm square trailer stem
Marine-grade finish – Hot-dip galvanised steel for superior rust protection
Roller compatibility – Perfect for 4.5″ keel or flat roller assemblies with 16mm bore
Simple installation – Bolt directly into trailer cross-member brackets
Australian-standard sizing – Compatible with most local trailer chassis setups
Applications:
Compact boat trailers, jet-ski trailers, aluminium hull support
Ideal match for 114mm wide rollers (4½”) on smaller trailer profiles
Great for bumpers, stern supports, and keel-centering elements
Included:
1 × Galvanised 4½” Single-Post Centre Roller Bracket
Roller, spindle, and fasteners sold separately.
