If you need a clamp of a certain size, it can be made from what is at hand: steel rod, strip, angle or profile. Making them need the bracket, drill holes in it and threaded (or welded nut) under the clamping bolt and the tool is ready.
Recommend to read
CATAPULT ON THE TABLE
When there are no guns, no shotguns, no revolvers. People fought with spears, swords, and just rocks. In ancient times during the siege of fortresses used a special weapon for throwing...
RAILS ON THE TABLE…
For model railroad two rail strips are made from sheet aluminum. They need to be screwed to a wooden block. They mounted on the side bars of wood that make up the profile of the mound....
