RS PRO Steel Hex Socket Cap Screw, 4/40 x 3/8in

Introducing the range of RS PRO Socket Head Cap Screws, a high-quality fastener solution for applications where a secure finish and precise tolerances are required when joining two panels or surfaces used for machinery or clamping together. Each fastener is made from steel, making them much more cost-effective than their stainless-steel counterparts, while offering a high level of protection against surface rust and oxidisation.

Socket screws are designed to be used with a wide range of materials like wood and metal, and to join panels or pieces together. They offer a higher tensile strength than nails thanks to the thread which in turn produces a more secure fastening, making them ideal for medium to heavy duty applications. They are easy to install and can also be removed for disassembly or adjustment. Socket screws are most commonly used for:

• Carpentry construction like decking, railings and small frames


• Metalwork and metal framing


• Building work and construction


• DIY

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.