The 4mm (M4) screw are the fixing screws that are needed to secure your handle or knob hardware, they are 4mm in diameter and are available in a variety of sizes in length. The 4mm (M4) is a common standard for handle and knob hardware.

We supply the M4 screw in a variety of lengths, so if you have a specific length required, please leave a note for us in the order notes, otherwise we ship 25mm M4 screw by default.

Additionally, if you require a different type of screw that allows you to use a knob as a hook for example (a dowel screw with wall plugs), please let us know in the order notes or speak to our support team in advance.

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