![air7 Stainless Steel 316 fin screw [ 3 pack] for Longboard Surfboard, Stand Up Paddle (SUP) and airSUP - most US box fin boxes](https://m.media-amazon.com/images/I/51mTcdV5VoL._SL500_.jpg "air7 Stainless Steel 316 fin screw [ 3 pack] for Longboard Surfboard, Stand Up Paddle (SUP) and airSUP - most US box fin boxes")
Product Review
fits most US box style fin boxes (longboard / SUP and airSUP)
air7 stainless steel fin screws for most SUP including inflatable airSUP
bolt : 3.5mm Diameter x 18mm　Length
nut : 14.1mm Wide x 14.1mm Length x 4mm Height
note: three in the pack
