Surf Screws With Paddle Board Screw For Surfboard Feature:1. Manual Mounting: Equipped with an O-shaped washer, the fin screw allows easy manual assembly with high reliability.2. Good material: Made of 316 stainless steel, not easy to break, deform or fade, rust-proof also in salt water.3. Standard Size: The standard size of M4 x 19mm makes it compatible with longboard, surfboard, veneer, paddleboard, etc.4. 5pcs in 1 Set: Comes with a 5pcs fin box screw to meet your maintenance and fixing needs.5. Easy to carry: The compact size takes up little space, and the light weight makes it more convenient to carry every day. Specification: Item Type: Fin BoltMaterial: 316 Stainless Steel Purpose: Suitable for all standard fin boxes from longboards, surfboards, veneers and paddleboards. Product Size: Approx. M4 x 19mm/0.75in Packing List:5 x Fin Screw 1) we accept Alipay, West Union, TT. All major credit cards are accepted through the payment processor's secure escrow. 2) Payment must be made within 3 days of placing the order. 3) If you can't check out immediately after the auction ends, please wait a few minutes and try again, payments should be completed within 3 days. About Shipping 1.