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CONFAST 3/8' (Inside/Screw 3/8'-16 Diameter) Drop-in Anchor Zinc Plated with 1 Setting Tool (100 per Box)

Free shipping on orders over $29.99

$50.15

$ 22 .99 $22.99

In Stock

About this item

  • Can only be used in solid concrete
  • For use in dry, indoor applications
  • Designated diameter equals inside diameter
  • FLUSH MOUNT - Nothing sticks up above surface of the concrete


Applications
The anchor is made from Carbon Steel, and is Zinc Plated. This anchor is designed for use in Concrete only, and should never be used in block or brick base material.
Environment
The anchor is designed for use in a Dry environment.
Hole Diameter/Bit Diameter
The anchor requires a 1/2" hole to be drilled in the base material (Concrete only). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.
Minimum Embedment
The minimum anchor embedment into the concrete is 1-9/16". Therefore, the anchor must be installed so that a minimum of 1-9/16" of the anchor is embedded into the concrete.
Spacing between Anchors
Each anchor must be spaced a minimum distance of 5" from each other when measured center to center.
Edge Distance
It is very important not to install the anchor any closer than 2-1/2" from an unsupported edge of the concrete.


Jaybird
2025-08-20 13:07:11
Installed ten of these anchors in concrete 2 1/2” - 3” thick. Holes were drilled completely through to gravel base. Anchors CANNOT be set in this type hole without fashioning a solid bottom for the hole. Anchors will drive straight through and out the bottom of the hole without expanding . Anchors require a LOT of force to properly expand. A setting tool is included and is used to drive and expand the exterior of the anchor over the tapered center portion of the anchor. This requires a bottom to drive against. I filled in the holes with gravel to begin with and had to add a stack of steel washers inside the holes to prevent the gravel from spreading out at the bottom of the hole. This is a lot a lot of work and I would have used a Wej-it type anchor if I had known. The product description says these can be used in a hole with no bottom. Very misleading and caused a lot of unnecessary work. I scored the sides of the anchors and used anchor epoxy when setting. These were used to fasten down a hydraulic garage lift and I wanted to ensure there would be no spinning of the anchors when torquing the bolts. The anchors are doing the job and are very strong and secure.
miguel
2025-08-15 10:55:43
Purchased these to install my manual tire changing machine and worked great. I can now secure it to my garage floor and remove it when I’m done. Very simple to install these anchors and the provide great hood down strength.
Salesman1029
2025-08-09 12:14:24
Pay attention to the depth of your hole. Great anchor
levi hammett
2025-07-29 11:32:21
I’ve been experimenting with a wide range of concrete anchors for various home projects. So far this one is the best I’ve used. Good price and solid manufacturing. Easy to install. Only issue I had was the shipping was a bit slow, but that probably because I’m used to 2 day prime shipping which wasn’t available from this seller. Overall I’m satisfied. I’ll be ordering another box.
Tomi
2025-07-06 17:34:34
Perfect description of item! Exactly what I needed!
Pedro A Garcia
2025-07-02 16:39:46
Ordered these after having a slab poured for a steel building. When I opened the box I noticed about 15 anchors missing and the drive tool was also missing. Sent a message and never got a response. I ended up using RedDots instead.
marty
2025-06-27 16:32:19
Worked very well , A great deal for the price . I will be ordering more .
Rick
2025-06-12 11:54:27
Used to mount a garage door hurricane brace to the floor. comes with the setting tool which worked as advertised. It was cheaper to buy these than to buy 8 of them at the big box store.
Mike Elliott
2025-04-19 15:34:42
I’m super impressed! The box of anchors came with a punch which I was not expecting. So great! Will buy more.
meo
2025-04-03 16:46:33
Fonctionne tres bien
Reevster
2025-02-19 17:36:32
50 to a box and a tool to install them with, what's not to like? Good value for the money.
maxime a.
2025-01-29 17:20:28
Really happy I could get a hand on this. There were not any at my local stores and they work well.
nick
2025-01-12 10:43:58
Used to bolt car tire changer to garage floor.