SITEMATE® HEXAGON HEAD COACH SCREWS | M8X75MM BZP is supplied with a zinc-plated finish for high performance and a M8X75MM BZP size, making it a suited for sm coach screw applications. This gives the screw a sharper, more robust performance. As part of the SITEMATE® range, this product sits within a collection of specialist fencing tools and fixings designed to make high-quality installations straightforward and efficient.