The MSS was developed and patented based on the RSS model. The screw has an integrated washer head and is complemented with a rubber washer below the screw head. This feature also helps protect the washer from prolonged exposure to the sun for long lasting, secure siding installations. No pre-drilling is needed due to the MSS' tip design for thin sidings as well as thick studs. The MSS is powder coated for exceptionally high corrosion resistance.