Heavy Duty Trailer Square U-Bolts – M16 – Galvanised

Upgrade your trailer suspension system with our Heavy Duty Square Trailer U-Bolts, engineered for maximum strength, durability, and secure axle mounting. Manufactured from high-tensile steel and designed for demanding towing applications, these U-bolts provide a reliable fastening solution for trailer axles, leaf springs, and suspension assemblies. Available in multiple sizes, these heavy-duty U-bolts are ideal for commercial trailers, utility trailers, agricultural equipment, and off-road applications where strength and safety are essential. Features & Benefits Heavy-duty square U-bolt design for superior axle retention Manufactured from durable high-strength steel M16 thread size for maximum clamping force Suitable for trailer suspension and leaf spring mounting Corrosion-resistant finish for long service life Ideal for repairs, replacements, and new trailer builds Designed for heavy-load and commercial applications Available Sizes 60mm Square U-Bolt Thread Size: M16 Internal Width: 65mm Internal Length: 185mm Suitable for 60mm trailer axle applications 70mm Square U-Bolt Thread Size: M16 Internal Width: 75mm Internal Length: 240mm Suitable for 70mm trailer axle applications Applications Trailer axles Leaf spring suspension systems Utility trailers Car trailers Agricultural trailers Heavy-duty transport trailers Our heavy-duty trailer U-bolts are built to withstand harsh road conditions, heavy loads, and continuous use. Whether you’re replacing worn suspension hardware or building a new trailer, these M16 square U-bolts provide the strength and reliability needed for safe towing performance.