PGMJ 80 Pieces 1/4"-20 Wood Inserts Bolt Furniture Screw in Nut Threaded Fastener Connector Hex Socket Drive for Wood Furniture Assortment (1/4"-20 x 20mm)

These are great for using in a cnc router bed. My included drill bit was completely garbage due to being bent or just poorly made. I just cut the holes with the machine to also lower the flange below the bed surface.

Comes complete with correct size drill and Allen let to install.

Does the job

liked that it came with a drill bit and allen key!

Had a project using 1/4 X 20 inserts, and was getting low - ordered these. Arrived, installed in project, immediately noticed 90+% of bolts were not threading into the inserts, but binding. Took a couple uninstalled bolts (1/4x20) and tried hand threading into uninstalled inserts (tried 5-6 different ones) and each. one. bound.Something was off that day at the factory in the big rock candy mountain, because I got a box of useless inserts -well half box now since they are either epoxied in an expensive (and unacceptable) project with a stuck bolt or drilled into oblivion trying to get them out.Took out the few left from my previous order (same stated size), finished out the project as good as possible, but this was a real letdown. Shame on me I guess for assuming 1/4 x 20 actually took a 1/4 x 20 bolt (crazy, I know).