5/16-18 Brass Threaded Insert

Comments about 5/16-18 Brass Threaded Insert:

Depending on wood grain any insert may raise the grain during installation. A simple jig that applies downward pressure surrounding the pre-drilled hole will minimize lifting. Also, I find that by NOT adding a slight countersink to the hole, it will cause the grain to lift less, due to the knife edge-like threads on these inserts.

Comments about 5/16-18 Brass Threaded Insert:

I first tried installing these in a 1/2" through hole made with a twist drill. With lubricant and lots of muscle, I did get them into the walnut I was working with. I chamfer the edge of the holes to avoid tearing the wood. Today I installed more of the inserts but used a Forstner bit instead, in a blind hole. I still used some screw lube. Everything went smoothly, with very reasonable installation force. Good product. I have had other brands that collapsed the threads when trying to install them. These did not!

Comments about 5/16-18 Brass Threaded Insert:

Quite difficult to install in hardwoods. Helps to chamfer the hole to avoid splitting the wood surface, and use screw lube, but they are very tight for the specified 1/2" hole. Finding a larger drill bit is another trick altogether. A 13 mm metric bit may help. At least they did go in, unlike some others I have that are inferior brass, where the threads just collapse.

Comments about 5/16-18 Brass Threaded Insert:

Great quality. Worked well. Much better than what you get at your local box stores.

Comments about 5/16-18 Brass Threaded Insert:

fair