welding clamping holder, welding table clamping stud holder

hello, i offer you here my created clamping bolt holder. it has 26 holes a.16mm plus wide taper to center the bolts. Furthermore, the holder can optionally be mounted at four points on your welding table. The holders have a hole spacing of 50mm and a hole diameter of 16mm. The holder is not mandatory to hang but is easy to separate by the rail system. So that the clamping bolt holder can not slip on your table but still remains rotatable can be screwed into the bottom of the th