Re: Removing tank vent screw? Home › Forum › Ask A Member › Removing tank vent screw? › Re: Removing tank vent screw? david-bartlettReplies: 1204Topics: 97 June 9, 2018 at 2:40 am #77694 They are called Push Nuts or PAL Nuts. Can get at a good hardware store. https://www.mcmaster.com/#push-nuts/=1d7b4b7 Attachments: