Thread Forming Screws for Plastic

What Are Thread Forming Screws for Plastic?

Thread forming screws for plastic are self-forming fasteners designed specifically for use in thermoplastic materials. Unlike conventional screws, they displace material rather than cutting it away, creating a precisely matched internal thread during installation.

How Do Thread Forming Screws Work?

These metal screws require pre-drilled or moulded holes and typically feature a 30° or 45° flank angle for efficient thread formation. Specialist variants with 60° angles are available for demanding or custom installations.

For thinner materials, selected FasPlas thread forming screws incorporate trilobular heads to reduce the risk of material burst-out, ensuring a secure hold and professional finish.

Benefits of Thread Forming Screws

Thread forming screws for plastic are widely used in manufacturing and assembly environments, particularly where automated production is required. Their self-forming design increases pull-out resistance and eliminates the need for secondary components such as nuts or threaded inserts.

We stock a wide range of metric and imperial thread forming screws for plastic, available in various diameters, lengths, and head styles. Options include steel and stainless steel, with zinc or black plated finishes.

For specialist applications, we can also manufacture custom sizes and designs to customer drawings, ensuring a perfect fit for any project.