RS PRO Stainless Steel 890 Piece Pozidriv Drive Self-Tapping Screw Drive Screw/Bolt Kit

The Thread-Forming Screw

Before using this type of self-tapping screw, it is recommended that a pilot hole is drilled into the material. As thread-forming screws have a flat nose, it makes the drilling process easier. Thread-forming screws are used when fastening plastic together.

The Thread-Cutting Screw

This style of self-tapping screw does not require any preparation. As it has a pointed tip, it is not necessary to create a pre-drilled pilot hole. Thread-cutting screws can pierce a small entry hole while being driven into the material the thread is being created.

Self-tapping screws are traditionally used where an application requires regular maintenance and regular easy access. These screws are useful in situations where products must be assembled and disassembled, such as access panels or even furniture.

These thread-cutting self-tapping screws are made from A2 stainless steel (also known as 18.8 grade due to the 18% chromium and 8% nickel content) which provides a high hardness level and resistance to corrosion and wear & tear. The A2 grade Pozidriv screws are supplied in thread sizes 10, 8, and 6 for reliable fixing with suitable sized nuts. The socket screws are used to join materials such as wood, plastic, brick and metal.

Self-tapping screws are ideal for applications that require regular maintenance, such as unit fixtures or panels, and additionally work well when joining two different kinds of materials due to the precise thread they create.