Hammond SCREWM6 50PK M6 Rack screw packaged in reusable jar. The screw itself features a phillips oval head, starter tip, factory installed washer and black metal finish. If you've encountered difficult part numbers, this product is for you. The SCREW series offers packs of rack mounting screws designed for ease of installation. Factory hardened, these screws are strip-resistant and are available in a variety of convenient quantities.