M4 × 0.7 × 4 mm stainless steel 304 screw is designed for compact assemblies requiring a strong, flush-mounted fastening. Its flat, wide, and low-profile head distributes pressure evenly without protruding, ideal for thin metal or plastic components. The B.O. (as-machined) finish provides good corrosion resistance and a clean industrial look. Suitable for electronics, fine mechanics, and aesthetic assemblies.