RS PRO Steel, Hex Bolt, 5/16-18 x 3 1/2in

Introducing the range of RS PRO Hex Head Machine Bolts, a high-quality fastener solution for heavyweight applications such as connecting lumber and metal securely. Each fastener is made from steel with a galvanised coating, making them much more cost-effective than their stainless-steel counterparts, while still offering a high level of protection against surface rust and oxidisation.

Hex bolts or machine bolts are designed to connect metal to metal, wood to wood or metal to wood, and offer increased rigidity and load-bearing capacity making them ideal for use in heavy duty applications. It is generally used with a pre-drilled through hole and can be used with a nut for additional anchoring. Hex bolts are most commonly used for:

• Carpentry construction like decking, railings and small frames


• Timber construction to support timber framing for houses


• Mounting heavy items onto walls


• Building work and construction

RS PRO is our own brand range and brings you a wide range of high-quality, great value products offering you more choice. Trusted by engineers all over the world, every part of every RS PRO product has been rigorously tested against demanding industry standards - they’re only given the RS PRO seal of approval if we’re confident of their exceptional quality, which means you can be confident too.