When I was still in my teens I screed together a blanket box, hardly fine woodwork but it has served it’s purpose for 40 odd years and I’m kind of attached to it. These days it used to store out of season duvets in vacuum bags. The vacuum bag after a while tend to leak and push the lid of the box up. To prevent this I would like to fix the lead down somehow. Years ago I found a swan/goose necked fitting that would screw under the over hanging lid and fix to the front . I can’t find it now and the tuit has come to the top of the list.
What would such a catch be called?

What would such a catch be called?
