Uxcell Hex Washer Head Self Drilling Screws, #12 X 5/8" 410 Stainless Steel Self Tapping Sheet Metal Screw 100Pcs

Feature: Self-drilling screw, in addition to the tap-like flute in the leading threads, there is also a drill-like fluted tip that looks much like the tip of a center drill. These screws combine a threading-like action and the fastener installation itself into only one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing. Hex washer self drilling screws can be can be locked more firmly if the screws vibration occurs,the flange part can be used as a flat washer, which can be locked firmly on softer and non-wearable materials. According to the thickness of the material,you can choose the self-drilling screws. The thicker the material, the larger and longer self-drilling screws. Note: 410 stainless steel is magnetic and can't be detected with magnets. When tapping, please keep the screw in the same straight line and perpendicular to the plane. Specification:Screw Diameter :#12(5.5mm)Screw Length: 5/8"External Hex Dia.: 8mm/0.31inchScrew Cap Thickness: 5.2mm/0.2inchHead Diameter: 12mm/0.47inchMaterial: 410 Stainless SteelColor: Silver TonePackage:100pcs x Hex Washer Head Self Drilling Screws