RS PRO Round Head Self Tapping Screw, 4in Long

Introducing the range of RS PRO Round Machine Screws, a high-quality, compact fastener solution for applications where a tidy and professional finish is required when joining two surfaces together. Each fastener is made from steel with a zinc coating, making them much more cost-effective than their stainless-steel counterparts, while offering a high level of protection against surface rust and oxidisation.

Machine screws are designed to be smaller and more compact than standard screws and can used with a wide range of materials like metal and plastic, 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. Machine 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.