STAINLESS STEEL: No Rust, No Oxidation with these Grade 18-8 / A2 Stainless Steel Bolts. Black Oxide Finish for a Great Look. These Screws will Outlast Your Car. MEDIUM LENGTH: These 8mm long M5 Screws are 2mm Longer than the OEM Screws to Account for a Frame. For Frameless Installation, Take Care Not to Damage the Paint When Installing if the Screw Protrudes Behind The Bracket. PHILLIPS PAN HEAD: Installs with a Regular Phillips Screwdriver. No Special Tools Needed. REAR INSTALLATION: The Screws Should Only be Used for Rear License Plate Installations. Your License Plate Bracket Should Have Threaded Holes or Metal Inserts. COMPATIBILITY: Compatible With All TESLA Model Y