Welcome to Litzee Store! Always keep extra screw and fin plate in your paddle bag for replacement. This set of Screw & Fin Plate is a universal fit for most fin boxes on the market and requires no screwdriver for installation. Say goodbye to your screwdriver. It is designed to move a fin back or forward and install fins in the perfect position. Features: - 304 stainless steel construction, rust and corrosion resistant - Eliminates the hassle of using a screwdriver while surfing - Measures 14 x 14 x 3mm (0.55 x 0.55 x 0.12in) for plates - Fits industry-standard fin boxes - Includes a rubber O-ring to prevent loosening while surfing - A must-have replacement for longboard surfers Specifications: - Material: 304 stainless steel - Model: M4 - Screw size: 4 x 30.85mm (0.16 x 1.21in) - Thread length: 17mm (0.67in) - Plate size: 14 x 14 x 3mm (0.55 x 0.55 x 0.12in) - Item weight: 9g (0.3oz) per pack - Package size: 12.5 x 8 x 1cm (4.9 x 3.1 x 0.4in) - Package weight: 28g (1.0oz) Package List: - 3 x Screw - 3 x Plate Please note the size and dimensions of the product to ensure it meets your needs. Warm reminder: Due to lighting effects, monitor brightness, and manual measurement, there may be slight differences in color and size between photos and actual items. If you have any questions, feel free to reach out. We will respond within 24 hours. Wishing you a happy shopping experience!