We are instrumental in manufacturing, trading, exporting and supplying of high-quality Plastic Bottle Screw Caps. Screw covers are used to conceal many types of screws, bolts, nails and rivets. These caps are comprised of a cap and washer. Your fastener fits securely into the plastic washer and the cap snaps over the washer to completely cover your fastener while providing an airtight seal that helps prevent rust and corrosion. These caps are available in Size 8/8 and Size 12/12. Made from high-impact UV stabilized plastic and are suitable for indoor and outdoor use.