Clamp Mount for plastic E27 lamp light bulb holder - 1/4" tripod thread

This item allows you to mount a commonly available plastic bakelite E27 bulb holder to any thing with a 1/4" UNC tripod thread.

My bulb holders are roughly 39mm in diameter around the flat part of the body. These are the ones I purchased

The clamp tightens with an M6x15mm binding barrel and M6x25 bolt (picture 4). I have also uploaded a version with recess for a regular M6 hex nut, but have not tested the tolerance on that version in real life.

Print with PLA or PETG, 15-20% infill, no supports. I used 0.24mm layer height.