The item is made from 410 stainless steel, which offers a degree of resistance to corrosion and possesses notable hardness, making it suitable for challenging conditions. Its design features a broad flat head that enhances the contact area, thereby improving the fastening capability. It is designed for self-tapping and self-drilling, eliminating the need for pre-drilling and making it compatible with various materials. In terms of performance, it boasts high hardness and strength, capable of enduring significant tensile and sear ，4.1lb box (approx. 100pcs) #8 x 3/4'' (4.2 x 19mm) Screw。