Torx Countersunk PT45 Screws for Hard Plastics

Torx Countersunk PT45 Screws are design for use with hard plastic and are available in Zinc Plated Steel (Silver + Black) as well as Stainless Steel. The Torx Drive provides excellent torque transfer, and the countersunk head allows for flush installation into pre countersunk holes. PT45 threads are designed for good performance in harder plastics, or plastics featuring fibre reinforcement. The PT45 thread is trilobular and at a 45 degree angle. To find out more about the PT45 and Trilobular threads, see our Engineering Guide.These screws can also be used with Finishing Washers for non-countersunk flat surfaces.

Our screws for plastics are all available in three materials:

• Bright Zinc Plated Steel – This is the most commonly used and standard finish as it’s economical and suitable for the majority of applications, featuring a bright metallic silver colour.  
• Black Zinc Plated Steel – This finish is mechanically identical to the silver colour zinc. They are commonly used for their aesthetic purposes, in industries such as automotive interiors, PC or computer server building or retail displays. 
• A2 Stainless Steel – This material has the highest corrosion resistance, usable in industries such as petrol / chemical applications, outdoor applications as well as food / catering. 

These fasteners have a Countersunk head but are available in Pan or Flanged. These Screws for Plastic come with a Pozi drive, but are available with a Pozi drive.

If you need further help in selecting a style of fastener for plastics, please look at our Completed Guide to Screws for Plastic or contact us on either 01233 713581 or use our Contact Form.