Home / Shop / SnapPlate Parts / Hardware / 20mm Black Stainless Steel Security Screws (4-pack) 20mm Black Stainless Steel Security Screws (4-pack)$3.00 Four torx security screws (M5-0.8x20mm) for thicker license plate frames. We also have the standard 10mm and medium 16mm screws. 20mm Black Stainless Steel Security Screws (4-pack) quantity Add to cart Free standard shipping on USA orders $99+