Prusacaster - Correctly placed hardware and threaded inserts

Now, this is just silly: this is a remix of a remix of a remix of the original design by Mikolas. Click the links to learn about who added what. — There are three known versions of the Harley Benton Thomann hardware:5-screw hardware used in the original design from Thomann in Europe3-screw hardware from Thomann in Europe3-screw hardware from Thomann in the USThis design has provisions for M4 threaded insert for the 3-screw variants. The 5-screw design was too tight for a threaded insert and it's