Secure your grates to prevent displacement from heavy runoff flows, pedestrian and vehicular traffic, and to deter potential theft and vandalism. Our #4 X 5/8 in. Phillips flat head screws fasten down Mini Channel™ standard plastic, brass, and decorative iron drain grates onto Mini Channel Drains. These screws have a pointed tip and coarse threads that easily drive into the Mini Channel grate seat. Use our 64 ct. bag of stainless steel screws to help an important part of your stormwater management product function effectively.