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by E-Z LOK

E-Z Lok Threaded Insert, Zinc, Hex-Flanged, UNC Threads, Inch, Made in US

Available in multiple versions

4.5 out of 5 stars 118 customer reviews

Price: $5.00 - $9.40
Product Specifications
Brand Name E-Z LOK
Material Type Zinc
System of Measurement Inch
Size Hex"
Body Style Hex-Flanged
Import Designation Made in US
Thread Style UNC
UNSPSC Code 23291804

E-Z LOK Hex Drive inserts for soft wood are an inexpensive insert for use in ready-to-assemble fu... See more product details


Currently showing 1-11 of 11
Inside Thread Size Outside Thread Size Overall Length Fastener Size Number of Items Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
   
#10-24 N/A 0.394 inches #10-24 50 B002WC8TTI
$8.80
#10-24 N/A 0.787 inches #10-24 50 B002WC8TTS
$5.00
#10-32 N/A 0.394 inches #10-32 50 B002WC8TU2
$7.56
#8-32 N/A 10 millimeters #8-32 100 B002KSTB9G
$5.00
1/4"-20 N/A 13 millimeters 1/4"-20 100 B002KT43MU
$7.00
1/4"-20 N/A 25 millimeters 1/4"-20 50 B002WC8TUW
$7.50
1/4"-21 N/A 0.787 inches 1/4"-21 50 B0026GSYNG
$5.00
3/8"-16 N/A 13 millimeters 3/8"-16 25 B002711TWS
$6.14
3/8"-16 N/A 25 millimeters 3/8"-16 25 B002WC8TVG
$6.00
5/16"-18 N/A 0.512 inches 5/16"-18 50 B002KT130K
$5.00
5/16"-18 N/A 25 millimeters 5/16"-18 25 B002WC8TV6
$9.40
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Product Features

  • Provides a Strong Machine Thread In Soft Woods
  • Ideal For Use in Pine, Plywood, Composition Board, and MDF
  • Designed For Use In Applications Such As Ready-To-Assemble Furniture, Drawer Pulls, Display Case, and Shipping Crates
  • Simply Drill the Appropriately Sized Hole and Install with Hex Key or Optional Drive Tool
  • Tapered External Threads Resist Pull-Out Caused By Vibration

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B00DCFIDJA
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (118 customer reviews)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Product Description

E-Z LOK Hex Drive inserts for soft wood are an inexpensive insert for use in ready-to-assemble furniture, drawer pulls, or wherever the avoidance of thread stripping is desired. Ideal for use in materials such as pine, plywood, composition board, and MDF, Hex Drive inserts feature tapered external threads which resist pull out caused by vibration. These die-cast zinc inserts are available in a flush design for "below the surface" installation or in a flanged design for installation depth limiting applications.

Customer Reviews

Top Customer Reviews

Fastener Size: 1/4"-20Outside Thread Size: N/ANumber of Items: 100Overall Length: 13Inside Thread Size: 1/4"-20 Verified Purchase
This threaded insert has manufacturing inconsistencies that will cause you to spend alot of additional time correcting those problems. Since this insert is 1/4-20 you'd expect that a screw of that size would screw right in with no problems but that's not true. Of the 100 pieces I used there were 30 that would not accept a 1/4-20 screw no matter how hard I tried. What I had to do to correct this problem was to run a 1/4-20 tap through the insert from both ends to clear out some type of casting debris that was blocking the screw. Once I did that the insert would accept the screw but I would still have to sometimes jiggle the screw around to get it to start.
P.S. Never use a 9mm drill bit which the package label says to use for creating the holes in the wood. 9mm is too large and the insert will strip out of the wood every time when you tighten the screw. I measured the diameter of the inserts I received with a dial caliper and their diameter ranged from 0.292 to 0.305 inches. I used a 5/16 (0.3125) inch drill bit instead and had no problem installing the insert in to the wood and they did not strip out of the wood when I tighten the screws.
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Fastener Size: 1/4"-20Outside Thread Size: N/ANumber of Items: 100Overall Length: 13Inside Thread Size: 1/4"-20 Verified Purchase
I installed about two dozen of these on a furniture project I worked on. Maybe four had some threading difficulty as mentioned by a previous reviewer. I found this on the second one I installed so before I installed each one I just put a bolt through it to clean out the threads. That made it easier once the insert was installed in the wood as threads were all ready set.

As mentioned, there were no problems on most and the problem that happened on the 1 of every six was easily cleaned up by just running a bolt through it first.

Overall, a good product for fastening which can be easily reversed if necessary.
1 Comment 12 of 12 people found this helpful. Was this review helpful to you? Yes No Sending feedback...
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Fastener Size: 1/4"-20Outside Thread Size: N/ANumber of Items: 50Overall Length: 25Inside Thread Size: 1/4"-20 Verified Purchase
These inserts are 1" long. I used a 21/64" pilot hole.
I used a 1/4"-20 X 1" Round head machine screw. (I added 1/4" lock washers plus the thickness of a metal leg bracket, means the screws could have been 1-1/8" long, but I didn't see that size.).

I used these to mount table legs to a 1-1/4" thick Laminated particle board round Table top, 4 Ft. Diameter .
I used 8 each, per four legs. (Two previous sets of leg holes with normal large wood screws had both ripped out)

These worked very well.
I first drilled my 8 holes in each metal table leg bracket slightly larger, to fit my 1/4" machine screws.
To align them correctly, I clamped my table legs into position, and then using the actual leg bracket holes as a drilling guide, I drilled 1/4" "starter" guide holes to about 3/4" depth. (being careful to try and keep the drill bit at right angles to table.)
I then removed the bracket, and used a drill guide attachment with a depth stop, to drill the larger holes for these inserts to their full depth.(Measuring carefully, and testing on another board first, to be sure I didn't drill through the table top.)
I used a standard metal drill bit for these holes, since the v-shaped tip self centers on the existing smaller hole. I finished up the hole bottoms with a flat tipped wood bit. (I was probably being overly cautious, but was worried about going too deep).

These inserts have the flange at the top. They did stick up above the surface, which was a problem. (I don't recall seeing the flangeless version in this size). - so, I had to use a flat bit to drill a slight recess(counter-sink) to acommodate the flange.
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Fastener Size: 1/4"-20Outside Thread Size: N/ANumber of Items: 100Overall Length: 13Inside Thread Size: 1/4"-20 Verified Purchase
I've installed over 150 of these E-Z Lock 1/4-20 Threaded Inserts in 1/2" Baltic birch plywood without a single problem. I pre-drilled 5/16" holes in the plywood and used the E-Z Lock installation tool chucked in a cordless drill. Couldn't be easier. I ordered extras because the other reviewer reported problems, but my experience has been 100% positive.
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Fastener Size: 1/4"-20Outside Thread Size: N/ANumber of Items: 100Overall Length: 13Inside Thread Size: 1/4"-20 Verified Purchase
These are the best type of threaded insert I have found. I've used the brass screw in ones (with a slot on one side) and the glue and pound in type and these are by far the easiest to use of the three types. The allen key gives you a positive hold on the insert (and directs the bolt to the threads when using these blind)

I did not use a 9mm drill as the package suggested. I drilled a test hole with a 9mm drill and the insert slipped right into it and didn't engage the outside threads at all. I used a 7mm drill and they went in snugly and that seemed to be the size that fit best. Perhaps in end grain something like 7.5mm or 8mm would be better, I did have one not start well in pine end grain
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Fastener Size: 3/8"-16Outside Thread Size: N/ANumber of Items: 25Overall Length: 25Inside Thread Size: 3/8"-16 Verified Purchase
These threaded inserts are great for soft-woods that either haven't been kiln-dried to increase their hardness, OR for woods that have been properly prepared. I used these with eastern poplar that was planed into 2x8x96 boards with pre-drilled holes using a basic power drill and a 1/2' bit. To install these you have two options, get a 3/8" - 16 hex bolt and some corresponding nuts. Cutoff the hex-head so the bolt is just a straight shaft, and thread the nuts on so only about 1/2" of the threads are showing, apply a drop of basic corn or vegetable oil and then thread the insert onto the bolt. Insert the other end (the end you cut the head off of) into your drill and adjust the power if you can to a medium setting. GO SLOW! Drill very slowly otherwise the nut will start to bore at the top of this zinc insert. They are extremely soft and will not hold up to a lot of torsional stress. The thing to note here is that you MUST prepare the holes for which this go into PROPERLY! The inserts themselves taper from about 3/8" at the bottom to 5/8" at the lip on the top. A simple 1/2" hole will be fine. You could use some liquid nail or epoxy to really lock these in. I recommend slow forward drilling and a quick burst in reverse to remove the makeshift driver bolt you created before hand.

The other option which is probably easier is to just use a drive tool. You may get better results then I did, although mine turned out ok with the above mentioned process.

This is my first time using these larger inserts for a very large desk I'm building for my father. They are to attach large 12 gauge steel L brackets to legs so the entire desk can be disassembled with a single allen key and about 20 bolts. Once the inserts are installed they hold quite well IF you've done things properly.
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