Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Vent Thumb Screw Back Chinook Chinook Vent Thumb Screw Product ID: 324448 Brand: Chinook 2025-05-25 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 Chinook Tuttle Fin Box Chinook Vent Thumb Screw Chinook Fin Box 8 inch 5 Hole Footstrap Inserts Chinook Board Vent Retro Fit with Thumb Screw 5-8 inch Chinook 7-Hole Micro Adjustable Foot Strap Inserts Chinook Board Vent With Thumb Screw 1 Inch Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Fin Box 10 inch Chinook Footstrap Inserts 5 Hole