Plastic Screw

A plastic screw is a threaded fastener made from moulded plastic. It is used where metal fasteners would corrode or interfere with electrical or magnetic fields.

A plastic screw fastens light parts where metal screws would corrode or scratch. It often takes a matching nut or threads into a moulded boss. A screwdriver or spanner of the correct size sets it.

This kind of screw is often made in plastic. Plastic resists corrosion and is lightweight. It has lower strength than metal, so it suits light loads.

This is a general guide to checking this kind of part. It says nothing about any supplier's parts.

Ask for a certificate of conformance to confirm the material and dimensions. On receipt, check for moulding defects such as flash or short shots. Verify the thread and head dimensions against the order.