LFPartS Premium Diamond Sparkle Crystal Bling Covers and Screws for License Plate Frame (Clear Crystals) Premium Diamond Sparkle Crystal Bling Covers and Screws for License Plate Frame. Add a sparkle of beauty and brilliance to your license plate frame. Pkg Includes set of 4 Diamond Sparkle Clear Screw Covers, 4 machine type of Stainless Steel screws, 4 self-tapping of Stainless Steel screws and screwdriver. Screws size: M6x20mm, will fit most American and Import cars. Quick and simple installation with easy to follow instructions with diagrams (included). Withstands weather and car wash.