30° Thread Profile Pozi Flanged Button Screws.

What are 30° Thread Profile Pozi Flanged Button Screws?

30° thread profile pozi flanged button head self-tapping screws, are high-precision fasteners engineered specifically for modern engineering applications involving plastics.

Their design is a fusion of innovative features: a unique 30° thread profile that provides exceptional grip in soft plastic materials, a reliable pozi drive for consistent torque application and a flanged button head. This head combines a low-profile dome shape with an integrated flange, similar to a washer, creating a wide bearing surface perfect for securing softer materials. Making these the best self-tapping screws for plastic applications.

How 30° Thread Profile Pozi Flanged Button Head Self-Tapping Screws Work

These components are designed to solve the common problem of fastening thermoplastics and other plastics. As self-tapping screws, they form their own mating thread when driven into a correctly sized pilot hole.

The critical innovation is the 30° thread profile. Unlike standard 60° threads that exert high radial pressure, this acute angle significantly reduces stress on the plastic, preventing the boss or housing from cracking. This makes them the ideal solution for high-tech applications.

A R&D team prototyping a new robotics assembly may use these components to secure custom sensor mounts and articulated joints that are 3D-printed from a thermoplastic. To securely fasten these critical, often brittle, parts to the main chassis, the engineers use these components. The specialised thread cuts into the plastic with minimal outward pressure, preventing the 3D-printed layers from splitting or cracking. The flanged head then locks the component in place, distributing the load to ensure the sensor mount remains perfectly aligned, even under operational stress and vibration.

Materials 30° Thread Profile Pozi Flanged Button Head Self-Tapping Screws Are Made From

Accu offers these advanced screws in a range of materials and finishes to meet diverse performance and aesthetic requirements:

• Steel (1022 Grade): A strong and reliable option, available with a bright Zinc Plated finish for good corrosion resistance or a black zinc plated finish for a sleek, dark appearance.
• A2 Stainless Steel: Providing excellent corrosion and oxidation resistance, this material is ideal for components exposed to moisture. It is available in its natural, untreated finish or with our matte AccuBlack chemical blackening for a premium, non-reflective finish.

Sizes and Types of 30° Thread Profile Pozi Flanged Button Head Self-Tapping Screws Available

Our range is precision-manufactured to support everything from intricate prototyping to full-scale production runs. These components are available in thread sizes ranging from 2.2mm up to 6mm and lengths from 5mm to 30mm, ensuring you can find the perfect fit for your application. 

FAQs

Q: Why use a 30° thread profile screw for plastics?

A: The 30° thread profile is specifically engineered to reduce radial stress as the screw is installed. This significantly minimises the risk of boss cracking and material damage in thermoplastics and other brittle plastics, while still providing high pull-out resistance.

Q: What is the benefit of a flanged button head? 

A: A flanged button head combines two key advantages: the low profile of a button head and the wide bearing surface of an integrated washer (the flange). This flange distributes the clamping load over a larger area, which is essential for preventing pull-through in softer materials like plastic.

Q: Do I need to drill a pilot hole for these self-tapping screws? 

A: Yes. For optimal performance and to prevent material damage, a pilot hole drilled to a specific diameter is required. The self-tapping screw then forms its own precise mating thread as it is driven into the pilot hole.

Q: What is the difference between A2 Stainless Steel and Zinc Plated Steel?

A: A2 Stainless Steel has inherent corrosion resistance throughout the material, making it superior for applications in damp or corrosive environments. Zinc plated steel provides good corrosion resistance by coating the base steel with a sacrificial layer of zinc; it is a cost-effective choice for general-purpose applications where exposure to moisture is limited.

Bespoke 30° Thread Profile Pozi Flanged Button Screws Manufacture.

High precision, bespoke manufacture of 30° Thread Profile Pozi Flanged Button Screws to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.