5/16-20 Plastic Bolt (Bung) Rubber washer BO7WR is included.
Please note that this is a larger bung than the one fitted to the WASZP. If the thread inside your boat has been damaged and the standard bung no longer fits securely, this oversize bung is the perfect solution. Simply tap the next imperial size up and fit this replacement bung to restore a watertight seal.
