Rubber-Cushioned U-Bolt

A rubber-cushioned U-bolt is a U-shaped bolt with a rubber sleeve and often a nylon seat. It holds pipe, tube or cable against a surface and the rubber cushions vibration and movement.

A rubber-cushioned U-bolt clamps a pipe, tube or cable to a flat surface. The rubber sleeve or seat cushions the clamped part and spreads the clamping force. It takes a nut and often a washer of the same thread, and it is set with a spanner or socket.

Zinc plating gives mild corrosion protection for indoor or dry use. Hot-dip galvanising gives a thicker coating for outdoor or damp conditions. PTFE coating lowers friction and can help with chemical resistance.

A rubber-cushioned U-bolt is often made in stainless steel 304, stainless steel 316 or steel. Stainless steel grades resist corrosion and suit damp or outdoor work. Steel grades can be coated for extra protection.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask for a certificate of conformance or a mill test certificate for the material and finish. On receipt, check the thread, the rubber sleeve for cracks or hardness, and the coating for gaps or damage. Confirm the dimensions match your order.