ForgeFix Self Tapping Screws Pan Head 1/2" x 6 Zinc Plated Box 200

These Forgefix Pozidriv Self-Tapping Screws are designed for increased resistance to corrosion, thanks to their zinc plating. The screws feature a pan head with a flat under head surface, making them ideal for lying flat against various types of sheet material. This design helps to reduce deformation, ensuring a clean finish in your projects.

Applications

These versatile screws are perfect for:

- DIY projects

- Ironmongery applications

- Engineering tasks

- Electrical work

- Plumbing jobs

The screws are engineered to tap their own thread into pre-drilled pilot holes in sheet metal, making installation efficient and straightforward. Their single-threaded design is specifically intended to resist pull-out, providing reliability in a variety of conditions.

Corrosion Resistance Explained

The zinc coating on these screws plays a vital role in preventing oxidation of the protected base metal, contributing to a longer-lasting finish. Zinc functions by forming a barrier against moisture and corrosive elements. Moreover, it acts as a sacrificial anode if this barrier is compromised, ensuring the underlying material remains protected.

In contrast to iron oxide, zinc oxide forms a fine white dust that does not lead to a breakdown of the substrate’s surface integrity. If left undisturbed, this zinc oxide can further shield the screw from oxidation, similar to the natural protection provided by the oxide layers found on aluminum and stainless steel.

Pozidriv Screw Design

The Pozidriv screw design distinguishes itself from the classic Phillips cross-head. While both may look similar at first glance, the Pozidriv features four additional points of contact. Importantly, it lacks the rounded corners found in Phillips screws. This unique design offers a significant advantage: when used with the appropriate tooling in good condition, Pozidriv screws do not cam out, allowing for greater torque application.

Identifying a Pozidriv screw is simple; it is marked by a line embossed in the screw head at a 45-degree angle to the slots for the driver, ensuring easy recognition.

In summary, the Forgefix Pozidriv Self-Tapping Screws offer a reliable solution for a range of applications, especially in engineering and DIY projects. Their corrosion resistance and robust design make them a valuable addition to any toolkit.