M3 is our thinnest size of machine screw. Our M3 machine screws are made from a durable carbon steel and include a nut for tightening metal surfaces together. The M3 machine screw has a thread diameter of 3 millimetres, the M stands for millimetres followed by the size – in this case 3 mm. We stock different lengths and head types such as countersunk or pan head depending on the fitting you need.
M3 Machine Screws
M3 is our thinnest size of machine screw. Our M3 machine screws are made from a durable carbon steel and include a nut for tightening metal surfaces together. The M3 machine screw has a thread diameter of 3 millimetres, the M stands for millimetres followed by the size – in this case 3 mm. We stock different lengths and head types such as countersunk or pan head depending on the fitting you need.
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