Thread Forming Screws

What are thread forming screws?

Thread forming screws are designed to form a thread within the material as they are installed, rather than simply cutting material away. This creates a mating thread that provides a secure fixing while reducing the need for additional components such as nuts or threaded inserts.

Fastenright’s thread forming screws are primarily designed for use in thermoplastic and other soft materials. They are installed into pre-drilled or moulded holes, with the screw’s thread geometry allowing the material to flow around the thread during installation.

Different thread and flank angles are available depending on the material and application, including 30° and 45° variants, with specialist 60° options available to order.

What are thread forming screws used for?

Thread forming screws are commonly used in manufacturing and assembly applications where a secure, repeatable fixing is required without the use of separate threaded components.

They are particularly suited to plastic assemblies and applications where reduced installation torque, material engagement and resistance to pull-out are important.

Their ability to form a thread directly in the material can also simplify assembly and make them suitable for production environments, including applications where efficient or automated installation is required.

What types of thread forming screws are available?

Fastenright supplies thread forming screws in a range of configurations, including:

• Countersunk head thread forming screws
• Pan head thread forming screws
• Flange head thread forming screws
• 6 Lobe / TX drive thread forming screws
• Phillips drive thread forming screws
• Pozi drive thread forming screws
• Security thread forming screws

The range includes standard thread forming screws alongside specialist designs for particular assembly and security requirements.

What sizes are available?

Thread forming screws are available in a wide range of metric and imperial sizes, with diameters and lengths varying according to the specific screw design.

Selected products are available in metric sizes ranging from M1 to M8, while other configurations offer different size ranges. Non-standard sizes can also be supplied to order.

For exact dimensions, thread angles, lengths and technical specifications, see the individual product pages.

What materials and finishes are available?

Fastenright supplies thread forming screws manufactured in:

• Steel
• A2 stainless steel
• A4 stainless steel

A range of finishes is available depending on the product, including zinc and black-plated options.

Material and finish can be selected according to the requirements of the application and operating environment.

Thread forming screws for specialist applications

Alongside standard thread forming screws, Fastenright supplies specialist designs including security thread forming screws and products with different head and drive configurations.

Non-standard sizes, finishes and custom parts can also be manufactured to customer drawings.

Contact our team to discuss your requirements.