What are these items called? clevis pivot angled bracket baseplate hinge? No idea Information, help and advice on many architecture, self build and design problems and issues

[NightShadow1991]

I am trying to find ready made angled, adjustable, tightening with a through bolt, pivot clevis type base plate hinge. I honestly don't know the true technical name, you seem them on the bases of large timber posts on the angle. Bolts to the ground and bottom of the post. They have a pivot pin and two clevis type clamps, fixed welded adjustable/tilting. Ground anchors essentially. I;ve been searching for ages and cannot find the true searchable name. I need them with a fixed welded base plate top and bottom. Thanks all!