Container Screw

A container screw is a threaded fastener used to secure shipping containers and similar structures. It often has a square or hex head and is designed for heavy duty holding.

A container screw often joins panels and frames on shipping containers and similar steel structures. It usually takes a nut and washer of the same thread, and a spanner or socket sets it.

Container screws are often made in steel or stainless steel. Steel types can be coated for corrosion resistance, while stainless steel suits outdoor and marine use.

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 and a mill test certificate for the material. On receipt, check the thread, head size, and surface for damage. Confirm the dimensions match the order.