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Sprite Science

1/4-20 Threaded Insert for Wood Hex Drive Threaded Wood Inserts 1/4 Wood Nuts 40 Pieces

    • Based on 1,277 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, May 21
Order within 11 hours and 41 minutes
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Size: 1/4-20 x 15mm


Features

  • 1/4-20 threaded insert x 15mm length, 6mm allen wrench included, best 1/4"-20 threaded insert wood insert furniture screw in nut connector screws.
  • Insert head : 0.461" / 11.7mm, body : 0.315" / 8mm, threads : 0.410" / 10.4mm.
  • Threaded inserts are easy to install, simply drill the right size hole and Install with hex key provided.
  • In Softer wood, the outside threads cut easily into the wood, simply drill a Appropriately Sized Hole (8.5mm, 9mm, 9.5mm, 3/8" drill bit) for the body of the insert, then screw insert into the place.
  • In very Harder wood such as white oak or maple, drill a hole size (3/8", 9.5mm, 10mm drill bit) that close to the outside threads diameter, then screw insert into the place. If the drilled hole is too small for the threads, screwing it in MAY split the wood or insert.

Package Dimensions ‏ : ‎ 5.71 x 3.82 x 0.75 inches; 7.05 Ounces


Item model number ‏ : ‎ 1/4-20WOODINSERT


Date First Available ‏ : ‎ April 6, 2019


Manufacturer ‏ : ‎ Sprite Science


Best Sellers Rank: #1,562 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Nut Inserts


#1 in Nut Inserts:


Customer Reviews: 4.7 out of 5 stars 1,277 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Easy to install; great directions
Size: 5/16-18 x 15mm
Review Image by F. Kerby F. Kerby
Review Image by F. Kerby F. Kerby
Review Image by F. Kerby F. Kerby
I wanted to install these to attach some locking swivel casters on the base for my router table. The directions provided were very helpful. I ended up assembling an installation and removal tool. The coupling nut opposite the threaded insert is installed loosely in the drill press chuck. By "loosely" I mean that the chuck jaws hold the nut in alignment but the nut is loose enough to slip. The insert is installed by tightening the nut next to the insert. If the hole for the insert is the correct size (tight, but not TOO tight). the installation tool can be remove by loosening the nut closest to the insert. If the hole isn't snug enough, the tool can be removed by holding the shaft and using a wrench to remove the lower nut. These inserts worked great. They were just what I needed to get a great looking caster installation. ... show more
Reviewed in the United States 🇺🇸 on February 24, 2023 by F. Kerby F. Kerby
    • They Work Pretty Good
Size: 1/4-20 x 20mm
Internal threads could be a little cleaner but they get the job done.
Reviewed in the United States 🇺🇸 on February 20, 2023 by Jeff Schenck
    • Seem to be good enough
Size: 1/4-20 x 15mm
Havent used yet but do not seem to see a problem coming. Good for the price and amount.
Reviewed in the United States 🇺🇸 on February 15, 2023 by Claude Goodwin Jr
    • Excellent quality
Size: 1/4-20 x 20mm
Great quality inserts I bought them for a subwoofer box I made unfortunately the one I bought was too big and I wouldn’t have enough room in order to install them. However I used them for another project and they were easy to install and had no issues threading a machine bolt into it. Way cheaper than the ones at Lowe’s 2 for $3 ... show more
Reviewed in the United States 🇺🇸 on January 16, 2023 by TroyM813
    • Hey insert is solid installation method vs. screwdriver
Size: 1/4-20 x 15mm
Local hardware store costs for inserts is outrageous. Brass inserts are better looking but more likely than not get covered-up during assembly so why pay the price. Brass occasionally get buggered-up too unless you make a bolt and locked nut jig to insert them.
Reviewed in the United States 🇺🇸 on January 16, 2023 by Terry McMillan
    • Solid and Stable Anchor Points
Size: 1/4-20 x 20mm
These inserts provide rock solid anchor points for mounting a pair of commercial grade table legs into the underside of a heavy duty table top that will be moved to different locations over its lifetime. The 1/4" x 20 machine screws will allow the legs to be removed and remounted multiple times without tearing out the wood. ... show more
Reviewed in the United States 🇺🇸 on January 5, 2023 by JayBee
    • Great value for money
Size: 1/4-20 x 15mm
Much cheaper than buying from the big box stores. I used a dab of super glue when installing to make sure they stay secure long term.
Reviewed in the United States 🇺🇸 on December 18, 2022 by Jason H.
    • Well made and easy to install
Size: 1/4-20 x 10/15/20mm*150pcs
I used three 1-3/4 x 4" wide red oak cleats on the bottom side of my 2" thick oak work bench top instead of c-channel to help keep the top flat. I slotted the holes in the cleats to allow for wood expansion. I attached the cleats to the underside of the top using these 1 inch (20mm) long steel threaded inserts. I used about 25 inserts for this project. I drilled the 3/8" pilot holes using a shop made drill guide and a veritas 3/8" brad point drill bit. After drilling, I chamfered the holes with a counter sink. I drove the inserts in with a harbor freight T-handle allen driver. The inserts went in fairly tight but did not feel like they were too tight. They all drove in with out damage to the inserts or the driver. The 1/4-20 bolts used to secure the cleats fit nicely without any problems. I was able to remove a few inserts and reuse them in a different location with no problems. Best inserts I've ever used. Highly recommed. ... show more
Reviewed in the United States 🇺🇸 on September 8, 2022 by J. Bennett

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