Threaded Inserts: Which ones are best? And why?

They’re excellent for this purpose, but yeah, don’t use them in wood lol

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Fine, BUT, use plenty of inserts.

Your reply doesn’t make sense

Just don’t use those for this application

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I personally think that the EZ LOC knife edge brass inserts are the best.(m5 internal thread)
Problem is that the length is 12.7mm overall. That makes it very hard to drill a normal deck to depth without breaking though the other side, as you need to account for the drill tip.
Anybody else run into this issue, as I have?

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@Boardnamics inserts when

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I did run into this issue with the EZ LOK inserts. I solved it with a Forstner bit that I ground the point off of. I used a normal drill bit to start the hole and make sure it stayed centered, then used the Forstner bit to finish it and I end up with a full width hole all the way down.

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anyone got a link to those inserts that torqueboards sent with their TB40 deck?

i kinda fucked mine by spilling epoxy, and i already got a few in the deck, so just want to keep them all the same type.

I was introduced to a new type of insert today called a Keensert.

Locking prongs get hammered in after it screws in to prevent backing out.

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I use these for repairing badly damaged threads in soft metals like aluminum, copper and cast iron, when a helicoil won’t work. They also work fine in some plastics (delrin, UHMW). To use these, you need to pre tap the hole, but they are not for use in wood though :frowning_face: Otherwise, they are great!

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Drats, they looked close enough but the threads are a bit fine. I appreciate the empirical data point!

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I use the EZlok M4 internal thread ones and they work great for me

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Well, thanks to evryone in this thread, it’s way easier when you know what you’re doing instead of brutforcing everything in.
After all of those years, it was time I did it properly, my trampa deck thanked me yesterday.

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anyone try these?

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I haven’t used those specifically, but have used similar-sized Ez-Lok ones I’m linking below. Similar price. Same M8 outer thread & M5 inner thread, but I see slight differences in…

  • Length: Ez-Lok are 12.7mm [1/2"] long. vs your link are 10mm long. Could be better for a thin deck
  • Method for driving them in: Ez-Lok has a shallow slot you drive with their special tool. Your link appears like the style that should be driven in slotted-end first. Believe me I’ve tried to install this style the opposite way and it doesn’t turn out well… the slotted end easily splits apart.

BTW, this M8/M5 size is heavy. I put ~20 in a board and felt like I added half a pound of metal. :rofl: Worth considering if M4 size is better for you. M4 Ez-Loks (you can find them at this same amazon link) were more appropriate for my last esk8 application.

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the only inserts that I’ve found to be reliable enough have been T-nuts.

although, I only just learned that you’re supposed to use wood glue or epoxy to secure inserts. oops.

I will never use brass inserts again after stripping them during installation several times. Now I’m using the steel ones only.

E-Z Knife Threaded Insert for… https://www.amazon.com/dp/B07V2P6CS5?ref=ppx_pop_mob_ap_share

I’ve had great luck with these

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I’m using m5 specifically because I just like using bigger screws. Honestly there’s no particular reason per se, but if possible I’d like to use m5.

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I’ve had M4 stainless bolts break when used on an enclosure, so that’s why I personally use M5.

That’s why you use 12.9 alloy & not stainless cheez

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