Your cart is empty.
Your cart is empty.
Specification:
30pcs Stainless Steel 1/4-20 Inch Thread Repair Insert Kit is manufactured from precision stainless steel wire for strength, wearproof and durability.
Increase connection strength and fatigue resistance due to the elasticity of wire thread inserts.
The Kit Set not only includes the wire thread inserts, but the twist drill bits, wrench, thread taps, breaking pin tool which can solve your most repair needs.
Great choice for restoring damaged threads in steel, iron, aluminum and anywhere which metal threads become stripped, crossed or damaged.
Instructions:
1.Drill out damaged thread using correctly sized drill bit(supplied)
2.Tap re-drilled hole using tap supplied
3.Load coiled insert into applicator
4.Screw coil into casting
5.Using lug breaking tool, break off tag on insert
6.Thread is repaired and ready to use
Package Included:
25 × Thread inserts
1 × Lug breaking tool
1 × Installation tool
1 × wrench
1 × Thread tap
1 × Drill bit
Red Devil
Reviewed in the United States on February 9, 2025
I received this 1 hour ago and your asking for review. Yes I have repaired the chrome inner primary cover on my Harley
Matthew Deremer
Reviewed in the United States on February 18, 2025
I repaired the damaged threads for a rear brake caliper that broke. Worked great. I will say that you should be careful trimming the break off end - my first attempt uncoiled the insert
J. Barz
Reviewed in the United States on February 16, 2025
I had never heard of helicoils and this kit fixed stripped bolt holes on my snowblower in minutes, but I have one issue. The kit does not come with a handle for the tap. I have a tap and die set and the tap base was too big for my small handle and my large handle was too large to use in a confined space. I couldn't use my own taps because the thread counts were too high.Having the cordless drill handy from drilling out the old hole, I put the tap in the drill chuck, set it for minimum torque and with a gentle squeeze of the trigger, worked the tap in and out, gradually increasing the torque. It worked perfectly but I wouldn't recommend it.
Leo
Reviewed in the United States on February 12, 2025
Life saver, had to fix some bolt holes on the transmission
TOMAS
Reviewed in Mexico on August 8, 2024
Trae lo necesario para hacer el trabajo, muy práctico
Loren Johnson
Reviewed in the United States on July 11, 2024
Just have to be a little careful how you put it in but they go in pretty easy and they work well
Jesús Ignacio
Reviewed in Mexico on September 13, 2023
Funciona bien , aguanta muy bien un torque alto
Ezequiel Alejandro
Reviewed in the United States on August 20, 2023
I’ve used this product before when fixing threads on my Z32. They work really well in aluminum. I was re-sealing my buddies EJ20 and when I went to put on the crossover pipe, the previous guy snapped the bolt and applied RTV to prevent coolant from leaking so it was only held down with 1 bolt instead of 2. Well I tried everything and couldn’t take it out so I had to drill the bolt out. Once done, used the supplied drill to clean out the threads and then begun tapping. Everything went smoothly from using the drill bit to tapping. Once done, cleaned hole and applied orange locktite to helicoil and installed it. I like to install it a little bit deeper and not flush as it makes it easier for the bolt to catch the threads. Punched the little tab out and waited about 15min before assembling the engine to let the locktite dry. Worked like a charm and would recommend if you’re in a pinch.
M Lewis
Reviewed in the United States on August 11, 2023
The kit I bought was for M8 1.25 thread pitch. It did the job perfectly at less than 1/3 the cost of a Helicoil brand insert. More inserts with it as well.I see some negative reviews & as far as I can tell, most of their issues were user error. There are 3 common metric thread pitches - so along with needing the correct size, it has to be the correct pitch. If either is incorrect it won't work! The directions (yes, I lost my man card by reading them) even says to try screwing the bolt into an insert to make sure it's correct - do it!Additionally, make sure that chips are removed at each step. After drilling, blow out the hole with compressed air or some carb cleaner. After tapping, do the same. Also - when tapping, use correct technique: start the tap by turning in a couple of turns. Then after that, turn the tap in 1/2 turn, back it out 1/2 turn, turn in a full turn, back 1/2, etc. This clears the chips out of the threads & ensures that they are cut correctly & smoothly.The tap included with the kit has a 1/4" square end. This means that you can use a 1/4" socket extension if the hole is too far behind stuff to get to easily. Best to use a T handle from a tap & dies set so you can apply pressure evenly & keep the tap straight. Using a wrench makes it easy to get the tap out of correct alignment - which will make bad threads.Hope this helps folks who haven't done this sort of repair before.
Christopher Arthur
Reviewed in the United States on May 24, 2023
I got three uses out of the installation tool. It woorked well once, and then it failed to release the coil. It snags badly and gets stuck into the hole. They should have used a harder steel to cast it, since the coil easily cuts into the end and gets stuck. I wouldn't dare reuse the tool, but the rest of the kit is okay. Fortunately, it is an easy tool to machine. All in all, we got the job done with the aluminum engine bolt sockets where it was necessary to fix threads.
Recommended Products
$56.00
$ 27 .99 $27.99