120 Pieces Black Stainless Steel Self-Drilling Screws M4.2 x 19 mm Black Metal Self-Drilling Screws 410 Countersunk Head Self-Drilling Drill Bit for Plastic Wood Sheet

Self-Drilling Design: The black self-drilling screw features a sharp self-drilling point at its rear end, allowing it to drill, tap, and fasten in a single operation without pre-drilling. This simplifies the construction process, saves time, and reduces tool changes, significantly improving installation efficiency and ease of use. Durable Material: These black self-drilling screws are made from premium 410 stainless steel, offering excellent resistance to corrosion, wear, and oxidation. They maintain stable performance even after prolonged use, making these black stainless steel screws suitable for various environments and applications. Contents: You will receive 120 black screws, each measuring M4.2 mm in diameter and 19 mm in length, with a Phillips head. Also included are a 50 mm PH1 Phillips bit and a 25 mm PH1 Phillips bit. This sufficient quantity meets various installation needs. Smooth Installation: The countersunk Phillips head design of these placo screws ensures a secure fit with tools, distributing force evenly to minimize the risk of stripping. This results in a stable and flawless installation process, providing a flat and aesthetically pleasing finished surface. Wide Range of Applications: These stainless steel screws are suitable for sheet metal, wood, plastics, and some soft metals. They can be used for furniture assembly, carpentry, everyday repairs, and in various fields such as industrial building materials, medical equipment, vehicle and ship components, and machining operations.