Overview
Use for a tight grip! Larger teeth give increased holding strength, ideal for end grain and particle board applications. Made of die cast zinc alloy. Has a self tapping harpoon thread. Thread listed is the size of the internal thread size.
Sold in pack of 8.
Tech Spec
Reviews
Customer Reviews
16 Review(s)
View AllHave a futon with wooden arms...
Posted April 10, 2013
Have a futon with wooden arms with magazine holders. The original threaded inserts which held the futon frame to the arms were so thin they cracked and the bolts literally pulled out and the frame collapsed. After several failed attempts at repair I bought these tapered hex inserts for 5/16" bolts. With a 1/2" pilot holes these worked well and the futon is better than new.
The secret with these inserts is...
Posted June 13, 2012
The secret with these inserts is using the correct size pilot hole. My suggestion is that you test fit an insert into a scrap of the wood you are using to make sure you find the right size pilot hole that will allow the insert to be put in place without too much resistance that the insert breaks or you split your workpiece. Also, I put these inserts in by hand using a double nuted bolt that I screw all the way into the insert and then lock the bolt with a double nut and use a small socket and ratchet to drive it in place. You will not break the insert this way. If you are trying to drive these inserts with a power drill you are asking for trouble.
Worked perfectly. I can't understand why...
Posted November 18, 2009
Worked perfectly. I can't understand why others had trouble, because these were so easy to install: Drill a hole; Put a hex drive on a socket wrench; Turn.I've used the 1/4" size in Maple and Red Oak--both end grain--with absolutely no resistance, breakage, splitting, etc. And they hold tight, unlike some of the T-nut options out there.I used a 7/16" bit for both, but if you simply read the back of the package, the suggested bit sizes are listed for hardwood or softwood applications. A 15/32" bit is recommended for hardwood (NOT a 3/8" hole, as others mentioned). I always start with a smaller hole first, however, because you can make a hole bigger, but not smaller! The 7/16" hole worked on the first test--held fast, and the insert went in with no more torque than needed to run a machine screw.Great item.
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