Sealey BST4225 Self Tapping Screw 4.2 x 25mm Flanged Head Black Pozi BS 4174 Pack of 100

Sealey BST4225 Self Tapping Screw 4.2 x 25mm Flanged Head Black Pozi BS 4174 Pack of 100
Self-Drilling Screws

The Sealey BST4225 Self Tapping Screw exemplifies dependable fastening solutions within the self-drilling screws category. Precision engineered to BS 4174 specifications, these flanged head screws deliver robust performance in a range of building and repair applications. Their black Pozi finish and self-tapping profile facilitate seamless and secure installation in various materials.

• Size: 4.2 x 25mm
• Head Type: Flanged head
• Drive Type: Pozi
• Finish: Black
• Standard: BS 4174

When compared to standard self-drilling screws, the Sealey BST4225 stands out through its adherence to British Standard 4174, offering both reliability and consistent performance. The combination of a flanged head and a Pozi drive ensures a firm grip and efficient torque transfer, while the black finish offers an extra layer of corrosion resistance. For both professional tradespeople and DIY enthusiasts, this pack of 100 self-tapping screws provides exceptional value and quality unmatched in many basic ranges.

Key Technical Advantages:
The flanged head design delivers superior load distribution, reducing the risk of damage to the surface material and minimising the likelihood of fixing pull-through. The self-tapping thread works efficiently with pre-drilled or softer materials, ensuring a quick and clean fastening solution. Additionally, the Pozi drive interface minimises cam-out, allowing for higher torque levels during installation and greater user confidence.

Technology and Performance
Manufactured to exacting tolerances, the Sealey BST4225 Self Tapping Screw provides repeatable performance in both timber and thin metal substrates. The black Pozi finish is not merely aesthetic, but further enhances the durability of each screw, withstanding environmental exposure and deterring corrosion over prolonged periods. Meeting BS 4174 standards guarantees reliability, and with 100 screws per pack, you benefit from continued productivity without constant restocking. Optimise your projects with this exemplary choice in self-drilling screws.