Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Vent Thumb Screw Back Chinook Chinook Vent Thumb Screw Product ID: 324448 Brand: Chinook 2025-05-02 From: $7.99 AUD View or buy the Construction and Repair Parts Windsurfing Other - Chinook Vent Thumb Screw from Chinook to discover other options and shipping details. Description Thumb screw for Chinook board vent, includes rubber O ring Back to Windsurfing Other - Construction and Repair Parts More Construction and Repair Parts and others in our range Slot Box Fin Box Chinook Gor Tex Vent Valve Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook 3-Hole Micro Adjustable Foot Strap Inserts Chinook Footstrap Inserts 5 Hole Patrik 4-Hole Adjustable Foot Strap Inserts Chinook Fin Box 10 inch Chinook 7-Hole Micro Adjustable Foot Strap Inserts Chinook 10 inch Mast Box Vented With Screw Chinook Footstrap Inserts 2 Hole