Hilitand Drilling Tail Screw Set, 50 Pcs Countersunk Head Self Drilling, M4.2 Tapping Metal Screws for Sheet Fixing(M4.2x50(50PCS))

HIGH QUALITY: These screws are made of high-hardness stainless steel and are suitable for steel processing and metal processing. ADVANTAGE: These self-drilling screws have sharp bore tails that do not require additional machining. SAVE TIME: This countersunk head self-drilling can drill, tap and lock materials at the same time, which is safe to operate and saves construction time. WIDELY APPLICATION: These self-drilling screws are mainly used for fixing steel steel tiles, or for simple construction of thin plates., Weight: 0.110231131 Pounds, Manufacturer: Hilitand