Machine Screws - Cheese - Metric - Self Colour

A machine screw is a type of screw that is commonly used in industrial and manufacturing applications to secure components within engines, electronic products and general machinery.

Cheese head machine screws have large, chunky, cylindrical heads where the height of the head is usually approximately half of its diameter. With a slotted head for installation with a flat-bladed screwdriver or bit, cheese head machine screws are strong and durable.

For a similar type of machine screw that has a slightly larger diameter flat head and a slightly lower thinner profile then choose our pan slotted machine screw.

About Self Colour Metric Thread

The most common thread type in production today. Usually specified as M then a number x another number. This signifies the thread diameter and the length of the fastener.

For example, M4 x 30 means that the major thread diameter (the external distance across the outside of the thread) is 4mm and the length is 30mm. Length is usually measured from the underside of the fastener head.

Steel products described as having a self colour finish are best suited to internal applications, as they have no additional protection against corrosion. The shade of a self colour finish can vary from bright metal to black, and it will change over time with oxidisation.

If you plan to use self colour finishes outdoors you should paint them to give them a protective coating.

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