Flange Head Phillips Self Drilling Screws 4.2mm x 50mm (Pack of 25) Modified Truss Zinc Plated Steel Fine Thread Pan Head Pozi Screw for Wood Sheet Metal Plasterboard Plastic Aluminum

FLANGE HEAD SCREWS: material -alloy steel, coating - zinc, threads - fine thread, tail - sharp pointed self drilling , head - flat flanged, drive - phillips PH2. USABILITY: Commonly used when constructing drywall track and ceiling, for stitching the track tougher, steel studs, roof tin, optimized self drillind geometry (no predrill neded) and Wafer Head designed for applications where a large clamping force required. Multipurpose screw used in a variety of applications. EASY TO INSTALL: Phillips head screwdriver needed (bit 2PH), no need to predrill. Flat pozi head ensures a strong connection and resistance to head breakage, fine thread gives ultimate performance and high pull-out resistance. Sharp self drilling point for easy instalatiion. ZINC PLATED STEEL: Self Drilling Screws are made of steel with high hardness and excellent corrosion resistance, Durable and not deformed for long time use. UNIVERSAL SCREW: Used when constructing drywall track, plasterboard, metal sheets, roof panels, tin, wood. Screws perfect for constructions, plasterboard, plaster walls, wood panels, stairs and other indoor applications, patios and various wood joints.