Product CatalogueSports and OutdoorsWindsurfing OtherConstruction and Repair PartsChinook Vent Thumb Screw Back Chinook Chinook Vent Thumb Screw Product ID: 324448 Brand: Chinook 2025-05-03 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 Board Vent Retro Fit with Thumb Screw 5-8 inch Chinook 3-Hole Micro Adjustable Foot Strap Inserts 8 inch Mast Track Box Chinook Board Vent Retro Fit with slot Screw .625 inch Chinook Slot Box Fin Box Chinook 7-Hole Micro Adjustable Foot Strap Inserts Chinook Footstrap Plugs Chinook Fin Box 10 inch Patrik 4-Hole Adjustable Foot Strap Inserts Chinook Fin Box 8 inch