4.5x50 Classic Multi-Purpose Screws PZ Double Countersunk Stainless Steel. Box of 200 Woodworking drill bit Type N (flute

drill bit Type N (flute angle) with a 135-degree tip

This through fixing provides a single solution and replaces traditional fixings such as nylon frame and hammer fixings

• Ideal for fitting windows and door frames

Centring tip provides a steady drilling start and good guidance universally

4.5x50 Classic Multi-Purpose Screws PZ Double Countersunk Stainless Steel. Box of 200 Woodworking drill bit Type N (fluteIdeal where ultimate corrosion resistance is required when fixing to softwoods, hardwood (pre drilled), chipboard, MDF and plastic. Stainless steel must be used where there is corrosive environment and or the base material has inherent corrosive characteristics e. g. Green Oak. Double countersunk reduces the likelihood of head shear and assists completion of countersinking 40 deep single thread to provide a secure fixing with high pull out resistance