GT2 Belt Lock Customizable

Thing is made as customized, because source one was too loose for my GT2 Belt.
When I set Inner size x=2.6 (in place of 2.8 in source), it fits well for me. STL file is for Inner size x = 2.6mm.
Generate several clip sizes on X (i.e. 2.6, 2.7, 2.8) and test it with your belt.