UPDATED. Our new dinghy mast bolt (suitable for the Finn/OK and Splash) has a quick release pint, large size easy to grip parts and has been designed to be used on all goosenecks with a outer width between 45 and 52mm. The part is manufactured by our partners Allen Brothers and is manufactured from A4 grade stainless steel parts, the bolt is simple to place and tighten and can be locked safely so that it never falls off at the wrong moment. For further enquiries, refer to our webshop.