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The Jack Nut threaded insert is an economical blind fastener designed for assembly-line use in thin, soft or brittle materials. When tightened, the body collapses to form legs, which grip the inside of the mounting surface, leaving a permanent, reusable threaded insert.
From the Manufacturer
The Jack Nut threaded insert is an economical blind fastener designed for assembly-line use in thin, soft or brittle materials. When tightened, the body collapses to form legs which grip the inside of the mounting surface, leaving a permanent, reusable threaded insert.
Michael
Reviewed in the United States on February 21, 2025
Worked amazing to hold on the front bumper lip extension on my car. Others have not held but these have. The wider pinch point helps to spread the load helping it stay in the soft plastic of the bumper.
Customer
Reviewed in the United States on January 4, 2025
Great repair for my camper lights. The fiberglass hole was stripped out for a marker light. These jack nuts made this repair perfect and cheap
JR
Reviewed in the United States on February 10, 2024
These work great if you have kitchen cabinets from the 50’s yes still using them.The pins style hinges are worn and don’t retract these a a great replacement.Will require drilling out the existing hole to insert the nut works great with a stainless steel screw.
Roman Z.
Reviewed in the United States on October 5, 2024
Made in the USA! Don't know why it's not clearly stated throughout the page.These are excellent quality! I could find no prooly formed jack nuts in either set. I bought a 20 pack of 6S 10/32 as well as a pack of 25 pack of 4S 6/32, and both look good, no defects in any.
Sparky
Reviewed in the United States on August 25, 2023
I use these in 3D printed enclosures that need screw mounts. Perfect for this application.
Kelli V.
Reviewed in the United States on April 24, 2023
Easy to install, gets a great grip, even in luan paneling in an RV. I was initially a little concerned that they might crush the paneling, but they work great.Before using these, on rough roads my blinds fell off. Used plastic wall anchors, and they ended up on the floor again. Used some of these, added Loctite, and viola... no issues. Very strong hold, easy to install. Can install in a small hole, unlike toggle bolts which require a hole much larger to fit the toggle through. Also, these are permanent. You can pull the bolt out and re-install as many times as you want.Highly recommend.
Thomas
Reviewed in the United States on May 7, 2021
Easy to use just real easy to loose grip and spin when trying to tighten bolt. Needs knurled maybe. Will work just got to snug up bolt.
ventingisok
Reviewed in the United States on June 28, 2017
Auto body repair. Under body plate bolt snapped off, too many. About 3/16" bolts. Removing the bolts enlarged the holes and this is about the right size for those holes. Will have to use plenty of washers and rust preventing methods to use this nuts and smaller bolts.
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