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E-Z Lok SK20820 Helical Threaded Insert Kit, 304 Stainless Steel, 1/4'-20 Thread Size, 0.500' Installed Length (Pack of 10)

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$28.26

$ 14 .99 $14.99

In Stock

About this item

  • QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in soft metals with this helical thread repair kit.
  • STAINLESS STEEL WIRE – Kit includes stainless steel threaded inserts that are resistant to corrosion and can withstand temperatures to 800°F.
  • FOR USE WITH APPLICATIONS – The metal threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc.
  • KIT INCLUDES – Convenient kit includes coil threaded inserts for metal, drill, STI tap, threaded insert installation tool, and tang break tools.



From the manufacturer

Threaded insert kit
Metric Helical Threaded Insert Kit, 304 Stainless Steel
Metric Helical Threaded Insert Kit, 304 Stainless Steel
Drive inserts
Drive inserts

Lawrence C.
Reviewed in the United States on December 4, 2024
Installed these 6 months ago to repair a stripped thread in a HDPE plastic part in a packaging machine that sees heavy vibration. Massive improvement over the plastic factory threads. The fasteners we use here are part of a changeover parts and the fastener gets removed and re-tightened about once per week. No signs of wear so far.
BillT
Reviewed in the United States on December 29, 2024
Worked like a charm.
kevin
Reviewed in the United States on November 16, 2024
Packaged in perfect condition
Robert Dial
Reviewed in the United States on June 24, 2023
This kit worked perfectly for the repair work I needed to complete. All items seemed to be of good quaility!
Brian Gross
Reviewed in the United States on June 19, 2023
Not a fan. Drilled out hole in 1/8 aluminum backing plate under 5/16 inch fiberglass. Tap shattered 3/4 of the way through with small hand driver. May I please have my money back as now I really have a problem with this 1/4 20 bolt!
dave cross
Reviewed in the United States on November 12, 2023
This was done before i knew it and was as easy as youd expect !
Jared Greenwald
Reviewed in the United States on September 14, 2022
I bought this item to fix a lawn mower valve cover and it worked perfectly.My valve cover was leaking oil very slowly. I noticed that in the corner where the leak was occurring the bolt holding on the valve cover wasn't very tight but the bolt was just spinning. I was able to remove the bolt but basically all the threads came with it.This helicoil kit was just exactly what I needed. I was able to drill and tap the bolt hole, insert the actual helicoil, break off the tab and re-seat the bolt all with the included tools and the aid of a cordless drill. The only reason I didn't give this 5 stars is that I couldn't figure out how to use the thread tap by hand. I ended up just using the cordless drill and going as slow as I could, but I'm sure there is probably a better way or some other tool that should have been used.
Ben Mclaughlin
Reviewed in the United States on August 11, 2020
I used this product to repair threads in the aluminum block on a 200 hp outboard motor. I removed the supplied drill bit from the package/kit, and drilled the hole in the block. I then removed the supplied tap, and discovered that the hole was larger in diameter than the tap. The supplier shipped the kit with the incorrect tap drill size. This has created a problem for me now, and I can’t even use the kit for this application. Now I’ve got a larger hole than I originally had, and no way to repair it without spending more money. Be sure you check the compatibility of the components before you use them.
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