8 x 3/4 (4.2 x 19 mm) Black Pozi Flange Self Tapper BS4174

These black coated self tapping screws BS4174 are ideal for screwing into a pre-drilled hole into thin metal using the correct size of pozi screwdriver or screwdriver bit. They have a shallow head allong with a flange which spreads the load so no small washer is essential.

It is important to get the correct tensile strength using the adequate self tapping screw diameter and length to provide a secure fixing..

These are bright zinc plated fasteners which is a preventative measure from corrosion. Ideal for using outdoors or in damp or wet environments.  Also bear in mind using different materials can cause fusing through corrosion especially in damp conditions when mixed with aluminium or stainless steel  materials.