Evolution BMHH5.5-50-3 Stainless Steel Tec Screw (Box of 100) by Evolution Fasteners

The Evolution BMHH5.5-50-3 is a 50mm bi-metal self-drilling screw designed for fixing cladding, roofing, and facade panels to light steel sections. Its A2 stainless steel body ensures long-lasting durability, while the hardened carbon steel Tek 3 drill point allows fast penetration into steel up to 4.0mm thick without pre-drilling.

With a 5/16” hexagonal head, it provides high torque transfer for secure fastening, and the coarse-threaded shank ensures strong holding power in steel substrates. This makes it ideal for external cladding, facade systems, and other construction applications where a corrosion-resistant fixing is required.

Supplied in boxes of 100, the BMHH5.5-50-3 offers a reliable, weather-resistant solution for steel-to-steel fixing in demanding environments.