ForgeFix Machine Screws Pan Head M4 x 40mm Zinc Plated Bag 25

These Forgefix Pozidriv Machine Screws are an essential fastening solution designed for use with nuts or pre-tapped holes. Ideal for various DIY, ironmongery, electrical, and plumbing applications, these screws are zinc plated to enhance corrosion resistance and ensure longevity.

Construction and Design

The screws feature a pan head with a flat under head surface, which allows them to lay flat against sheet materials of all types. This design reduces deformation and ensures a secure fit. The zinc coating not only acts as a protective barrier against oxidation but also functions as a sacrificial anode if the barrier is compromised, thereby promoting a longer lasting finish. The formation of zinc oxide— a fine white dust— occurs when zinc is exposed to the elements. Unlike iron oxide, zinc oxide does not degrade the integrity of the substrate's surface. When left intact, it can effectively inhibit further oxidation, similar to the protective layers afforded to aluminum and stainless steels.

Advantages of Pozidriv

The Pozidriv screw design is particularly noteworthy. Although it resembles the classic Phillips cross-head screw, it is distinctly different. The Pozidriv features four additional points of contact and does not have rounded corners, which are common in Phillips designs. One of the key benefits of using Pozidriv screws is that they are less prone to camming out—this means that, when paired with the correct tooling in good condition, they allow for excellent torque application without slipping. The screw head is easily identifiable by an embossed line at a 45-degree angle to the slotted driver, ensuring correct alignment for optimal use.

Characteristics

- Material: Zinc-plated for corrosion resistance

- Head Type: Pan head with a flat under head surface

- Drive Type: Pozidriv compatible

- Dimensions: Machine Screw, M4 x 40 mm

- Application: Suitable for various applications in DIY projects, ironmongery, and plumbing

- Weight: Approximately 0.225 pounds

The Forgefix Pozidriv Machine Screws provide a reliable fastening solution for both professional tradespeople and DIY enthusiasts. With their robust construction and advanced design features, they are a dependable choice for projects requiring durable and effective fastening methods. Treat your projects with the confidence that comes from using high-quality screws engineered for performance and longevity.