The 6mm Black Plastic Washer pack of 6 provides reliable and neat finishing for countersunk machine screws on kayaks and canoes. Manufactured from injection moulded nylon, these washers are engineered for durability and corrosion resistance, making them ideal for marine and outdoor use. Perfect for maintenance or outfitting upgrades, they ensure a secure fit and a professional look to all your kayak hardware installations. Suitable for both replacements and new projects.