Quicker and longerlasting frame fixings Box of 200 high quality 4.8mm selfdrilling screws with twinthreaded shank and wafer head. Manufactured by Rapierstar using Zinc passivated carbon steel for strong longlasting PVCU window frametoframe and frametobaypole connections. The flat underside of the wide wafer head prevents the creasing that can weaken the frame and cause pooling of water which results in corrosion. Whilst the advanced drill point eliminates the need to predrill and is effective on singlewall and multichamber profiles with or without steel reinforcement. Features & Benefits Load spreading wafer head prevents creasing of frame Twin selftapping thread faster to insert and remove Advanced drill point improves performance reduces breakages Excellent corrosion resistance surpasses industry standards Spruce clearance channel prevents buildup of swarf High pullout values offers a stronger hold Industry favourite superior performance and value...