This generic Hatch cover with rim included, has a Bayonet Thread and has a 10cm diameter opening This is a complete Hatch and Rim – Suitable to replace hatches on many kayaks especially generic brands fitted to kayaks such as Finn, Spirit and others. It is a bayonet style and can’t cross-thread like other kinds of hatches and is generally easier to open than standard thread hatches which can jam. We recommend (even if it is not necessary) replacing the rim at the same time as the hatch cover (if convenient). The main seal on this hatch is found on the rim so it makes sense to replace the rim at the same time as the lid (if it is at all worn). The maximum diameter item that can be put in the hatch is 10cm. This is pretty small so this hatch is mainly used for inspection ports or as a cover over the steering mechanism of a “surf” or underslung rudder on a surf ski. The hole that is required in your kayak deck (to fit the rim) is 11cm diameter You can use this to replace a standard thread hatch but will need to replace the Rim (Female) section.
