Check the listing for details. 21mm/ 0.8" Skateboard Hardware Kit, 8 Pcs Mounting Screws, Red. Condition: New. Listed at 16.68 USD. Skateboard Hardware Kit is for a skateboard connecting truck and board used for replacement or modification.Specification：Color: Red;Material: Carbon Steel;Screw Length: 35 mm/ 1.4";Screw Thread Length: 21 mm/ 0.8";;Screw Thread Diameter: 4.8mm/ 0.19“;Package List: 8 x Skateboard Screws, 8 x Nuts, 1 x hex key.Advantages: This package comes with hexagonal screws and good matching nuts, engineered for a tight, secure fit that withstands long-term use without loosening. Also a hex key in included—everything you need for quick, effortless installation is right in the box.Instruction: First align the hexagonal screws with the mounting holes of your skateboard trucks and deck, then fasten them with the matching nuts. Then use the included hex key to tighten the screws evenly until the trucks are firmly secured to the deck, ensuring no wobbling.