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E-Z LOK - 319-820 E-Z Lok Externally Threaded Insert, C12L14 Carbon Steel, Meets AISI 12L14, 1/2"-20 Internal Threads, 5/8"-11 External Threads, 0.625" Length, Made in US (Pack of 5)

4.1 4.1 out of 5 stars 32 ratings
Material Steel
Fastener Type Thread Locking
Thread Size 1/2"-20
Exterior Finish Aluminum
Metal Type Aluminum

About this item

  • THREADED INSERTS FOR METAL – E-Z LOK Thread Inserts for metal. Solid threaded inserts that are strong, easy to install, and self-locking. For optimal holding power in metal.
  • INSTALL WITH STANDARD TOOLS – 12L14 Carbon steel threaded inserts. Install with standard tools. No special drills, taps, or special installation tools are needed.
  • QUICKLY REPAIR DAMAGED THREADS – Quickly repair damaged threads or reinforce tapped holes in soft metals with these steel thread inserts.
  • FOR USE WITH APPLICATIONS – The threaded inserts are designed for use with soft metals: aluminum, cast iron, magnesium, etc.
  • STRONG THREADS MADE EASY – Simply drill the hole with a standard drill. Tap the hole with a standard tap. Turn in the insert with a screwdriver, bolt/jam nut, or an E-Z LOK drive tool.
  • IMPORTANT NOTE: Installation requires the use of a 37/64 drill.

Additional Details

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Product details

  • Item model number ‏ : ‎ 319-820
  • Date First Available ‏ : ‎ November 11, 2009
  • Manufacturer ‏ : ‎ E-Z LOK
  • ASIN ‏ : ‎ B002WC8SY4
  • Customer Reviews:
    4.1 4.1 out of 5 stars 32 ratings

Product Description

E-Z LOK threaded inserts for metal provide an easy to use solution for repairing or reinforcing threaded holes in metal. Ideal for use in metals like aluminum and cast iron, E-Z LOK threaded inserts are screw machined out of solid steel for greater strength and superior pull out resistance. Standard external threads permit the use of standard drills and taps for installation. Once the hole is prepared, E-Z LOKs are threaded into the hole like an ordinary fastener using a screwdriver, bolt and jam nut, or optional E-Z LOK drive tool. E-Z LOKs are self locking and will not back out or vibrate loose. A preapplied adhesive activates upon installation and bonds to virtually all metals. Fastener-ready in minutes, the adhesive seals against liquids and gases to pressures of 6,000 psi. when fully cured (72 hours).

From the manufacturer

Externally Threaded Insert, C12L14 Carbon Steel
Externally Threaded Insert, C12L14 Carbon Stee
Externally Threaded Insert, C12L14 Carbon Steel
Drive inserts
Drive inserts

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Customer reviews

4.1 out of 5 stars
4.1 out of 5
32 global ratings

Top reviews from the United States

WML52
5.0 out of 5 stars Worked perfectly!
Reviewed in the United States on July 6, 2019
Verified Purchase
Purchased this to adapt my 1/2"-20 thread on my rotary buffer to 5/8"-11 thread on the backing plate and other accessories I have that required a 5/8"-11 thread. It worked perfectly!
One person found this helpful
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Amazon Customer
5.0 out of 5 stars great
Reviewed in the United States on November 9, 2019
Verified Purchase
worked good
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BP me
1.0 out of 5 stars Useless
Reviewed in the United States on April 29, 2022
Verified Purchase
Purchased to adapt older sears rotary sander from 1/2x20 to use 5/8 x11 sanding accessories. 1/2x20 threads on perfectly but accessories will not thread onto 5/8x11 portion. Disappointed.
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Herbert T Miller Sr
5.0 out of 5 stars Good product.
Reviewed in the United States on December 10, 2018
Verified Purchase
Arrived on time and a perfect fit.
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crAz8314
5.0 out of 5 stars Five Stars
Reviewed in the United States on June 8, 2018
Verified Purchase
Well made, as advertised.
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Hugh G. Rection
5.0 out of 5 stars Good Solution
Reviewed in the United States on December 17, 2023
Verified Purchase
Made of what appears to be hardened steel. Easiest way I could come up with to mount polishing pads with 5/8-11 female thread onto an old buffer with 1/2-20 male thread output shaft. Using a drill to polish paint will burn up the drill before very long.
Customer image
Hugh G. Rection
5.0 out of 5 stars Good Solution
Reviewed in the United States on December 17, 2023
Made of what appears to be hardened steel. Easiest way I could come up with to mount polishing pads with 5/8-11 female thread onto an old buffer with 1/2-20 male thread output shaft. Using a drill to polish paint will burn up the drill before very long.
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One person found this helpful
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