Compatibility: Paddle board Fin Screw Replacement Are Compatible With Standard US Fin Boxes. Screw Thread: 3/16'' x 0.83'' (4.63 mm x 21.1 mm). Plate Size: 0.75'' x 0.55'' x 0.15'' (18.97 mm x 13.97 mm x 4 mm).
Convienience: No Tool Required. Quick And Easy Fin Installation By Hand Tightening The Screw Against The Rubber Washer. The Plate Helps To Keep The Screw In Place And Tight. Easy To Remove As Well.
Rust Proof: The Screw And Plate Are Made Of High Quality 316 Stainless Steel And Will Not Rust In Fresh Or Salt Water.
Replacement: Works The Same As The Original Fin Screw. Perfect Replacement Parts For Your Board. Back Up The Screws In One Purchase.
Satisfaction: If You Have Any Question With the Paddleboards SUP Fin Screw Replacement, We Are Here For You and Your Satisfaction is 100% Guaranteed.