Phillips Hex Washer Self Tapping Screws M4 x 20mm 304 Stainless Steel Hex Flange Sheet Metal Screw 60pack

Description: Made of 304 stainless steel it has higher hardness corrosion resistance and rust resistance and provides a firm fixing indoors and outdoors. It is driven by a cross groove with uniform force easy to lock not easy to slip and convenient and quick to use. The self-tapping screws can drill well into the wood sheet metal and other surfaces. The thread can reduce the resistance when screwing in and prevent cracking. It can also connect metal hardware to the wood well because the fully threaded rods provide good retention in the wood. Widely used in various industries such as manufacturing construction engineering and assembly.