• Easy To Install: Hand Tighten Against Rubber O-Ring Means No Tools Ever Needed
• Anti-rust: high-quality stainless steel, no rust in fresh water or salt water, durable
• Suitable for: Our fin screw fits almost all standard surfboard fin boxes for longboard, sup, single fin, paddleboard
• Size Detall: Fin screw length: 1.16 inches (29.5 mm) Square nut: 0.55 x 0.55 x 0.16 inches (14mm x 14mm x 4mm); please check our pictures for more size details
• Super Value2 pieces or 4 pieces. Two for you to choose