Mar 272012

How To video for installing and recovering threaded metal inserts for wood.

E-Z LOK Threaded Inserts For Metal; Installation Kit; Carbon Steel; Includes 7/16-14 Thin Wall inserts, drill, tap, inst

E-Z LOK threaded inserts for metal provide an easy to use solution for repairing or reinforcing threaded holes in metal. Ideal for use in metals like aluminum and cast iron, E-Z LOK threaded inserts are screw machined out of solid steel for greater strength and superior pull out resistance. Standard external threads permit the use of standard drills and taps for installation. Once the hole is prepared, E-Z LOKs are threaded into the hole like an ordinary fastener using a screwdriver, bolt and jam nut, or optional E-Z LOK drive tool. E-Z LOKs are self locking and will not back out or vibrate loose. A preapplied adhesive activates upon installation and bonds to virtually all metals. Fastener-ready in minutes, the adhesive seals against liquids and gases to pressures of 6,000 psi. when fully cured (72 hours).

  15 Responses to “Installing Metal Threaded Inserts For Wood”

  1. Good video.

  2. Yes, I was one of the dummies that thought that the slotted end was for a screw driver. Thanks for the great info. This will make it easier for me.

  3. I’m not sure you’re correct about the slotted end, given the existence of the “E-Z LOK Drive Tool” (search Amazon for that part, as YouTube won’t let me link to it in the comments).

  4. I first used threaded inserts 40 years ago. I used a screwdriver, occasionally screwed up the internal threads, they didn’t always go in very well. I had two suppliers tell me over 30 years ago I was installing them the wrong way. Since then I’ve had few problems, they cut a clean thread, don’t chew up the wood as bad.

    EZ LOK inserts are obviously made different. The slots don’t go to the OD and they appear to be thicker wall. If I used EZ LOK inserts I might consider their $14 tool.

  5. I just received the new Rockler catalog and it does state that the inserts easily install with a screw driver. I must say after seeing your video, I prefer your method. Nice job!!! Thanks from Chicago.

  6. Thanks for a great video. And just in time for my own project, too. Keep up the good work. You’re very clear, no extra talk, just to the point — exactly what a how-to video should be done.

  7. @RonaldWalters47 You may be right, but all the information I see suggests that they are intended to be installed with a screwdriver or similar tool (notches out). Woodcraft could have gotten it wrong, but they specifically show a picture of their threaded inserts (not EZ LOK brand) installed notches out and explicitly state that you can install them with a screwdriver.

  8. Hey very nice video, well filmed and explained. I didn’t know how to properly instal these. THANKS 🙂

  9. Cool i was one of those who thinks those cuts slots were for screwdriver hehe

  10. How much would you trust that to hold going into pine? I may need to put some in 45 degrees into the end grain of a board

  11. When I said I haven’t had one pull out, I probably should have said, “within reason” or “in jigs and fixtures”. Pine is soft so I wouldn’t expect a lot of strength. End grain is even worse. Given enough load they will tear out. You could experiment with running two in together on the bolt at the same time but you may not be able to get the bolt to release.

  12. Excellent video. I was taught to drive them in with a screwdriver as well.
    Thank you so much for the enlightenment : )

  13. These are great videos. I just found your site while looking for how to install a particular kind of threaded insert. There happens to be one (metal insert) sitting next to your bolt in this video between 0:40 and 1:00. I am installing legs on a kids table, and I have some of those inserts to use in the table top. Do they just get tapped into a pilot hole in the bottom of the board, or would you recommend I just take them back and get the ones you used?

  14. Those are T-Nuts and if you have room I would prefer them to the threaded inserts. The threaded inserts can tear out… just depends on the material and load being applied. The flange of the T-Nut goes on the backside of the board and the bolt would enter from the front. If it needs to be flat a slight relief pocket can be cut with a Forstner bit to recess the T-Nut Flange (see my video on Star Knobs — Homemade). I tap them in with a hammer and sometimes use a metal rod as a punch.

  15. Nice video and just what I needed to know

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