These durable stainless steel socket head cap screws are perfect for your hardware projects. Featuring black oxide coating for corrosion resistance, each screw in this pack measures size with a M2.5*18mm length. The hexagonal socket head allows for easy tightening and adjustment with an Allen wrench. fixtures and other assemblies where durability and longevity are required. The stainless steel construction stands up to weathering, making them suitable for indoor and outdoor applications. Get 20 screws, 1 hex wrench in this convenient pack for all your mounting and fastening needs.