3.5 x 12 Pozi Countersunk PT45 Screw - A2 Stainless Steel

Pozi Countersunk PT45 Screws For Hard Plastics - 3.5mm Thread Size x 12mm Thread Length - A2 Stainless | Vital Parts - ZCPT45-35-12-A2

Our Pozi Countersunk PT45 Screws are specifically designed for securing components in hard plastic materials, offering excellent performance in fiber-reinforced plastics and similar applications. Engineered for strong holding power and a professional finish, these screws are available in Bright Zinc Plated Steel, Black Zinc Plated Steel and A2 Stainless Steel.

This product features a trilobular PT45 thread, angled at 45 degrees for improved grip and torque distribution in plastic materials. The countersunk head allows for a flush installation, ensuring a sleek and seamless appearance. These screws are compatible with finishing washers for applications that require a decorative finish on flat surfaces.

What Are Pozi Countersunk PT45 Screws?

Pozi Countersunk PT45 Screws are fasteners designed with a Pozi drive, which is one of the most common and reliable drive types. The countersunk head ensures that the screw sits flush with the surface when installed into pre-countersunk holes. The PT45 thread is a specialized trilobular thread designed to enhance fastening performance in rigid plastic materials, providing improved resistance to loosening and pull-out forces.

Key Features & Technical Specifications:

• Thread Size: 3.5mm
• Thread Length: 12mm
• Head Diameter: 6.3mm
• Head Height: 1.65mm
• Drive: PZ1
• Material: A2 Stainless
• Pozi Drive: Commonly available and provides improved torque control, reducing cam-out.
• Countersunk Head: Allows for flush installation in pre-countersunk holes, creating a clean and professional finish.
• PT45 Trilobular Thread: Designed for enhanced grip and holding power in hard plastic materials.
• Versatile Compatibility: Can be used with finishing washers for non-countersunk surfaces.

Applications:

Our Pozi Countersunk PT45 Screws are ideal for:

• Plastic Component Assembly: Ensuring secure fastening in fiber-reinforced and hard plastics.
• Automotive Interiors: Used in vehicle dashboards, panels and trim.
• Electronics & Computer Hardware: Perfect for securing parts in PC builds, server enclosures and retail display units.
• Outdoor and Chemical Environments: A2 Stainless Steel versions are resistant to corrosion, making them ideal for harsh conditions.
• Food & Catering Industries: Stainless Steel options provide hygienic fastening solutions for food-safe environments.

Benefits:

• Reliable Fastening: PT45 thread design improves engagement with plastics, reducing stripping and loosening.
• Professional Finish: Countersunk head provides a smooth, flush surface for a clean aesthetic.
• Versatile Use: Available in different finishes to suit a wide range of applications.
• Secure Drive System: Pozi drive prevents cam-out, making installation easier and reducing damage to the screw head.

For those looking for a strong, reliable and well-designed fastening solution for plastic materials, our Pozi Countersunk PT45 Screws are the perfect choice. Available in multiple material options to suit different environmental conditions, these screws offer excellent grip, durability and professional aesthetics. Need help selecting the right fastener? Explore our Complete Guide to Screws for Plastic or contact us at 01233 713581 for expert advice.