Summary

Hardware:
• 5 x M3 Bolts + Washer + Nut (1 - up to 10mm long)

Temperature (ABS on Ender3):
• Nozzle - 240ºC
• Bed - 110ºC

This is designed to lock doors of an enclosure box. You should print 2nd bracket for another side - just look at the pictures of assembled box.

To assemble:
1) use a longer bolt with a nut on it to press the nut into the knob. It holds itself inside the knob after.
2) use the hole in the middle to insert the bolt. My bolts had a 5.45mm. head so I just used a 5.5 drill bit to perfect the hole size.
3) screw the knob (with nut in it) on the bolt, tighten the bolt

Bolt head has its guideway in the bracket - this helps both strength and accuracy of the slider.

Can be printed and will work using any kind of material.
Holes might need drilling to spec for accuracy.