



🔩 Lock it down with confidence—anchors that mean business!
The CONFAST 3/8" x 4" Flat Sleeve Anchor is a zinc-plated, carbon steel fastener designed for secure installation in concrete, brick, and block. Featuring a 360-degree expansion mechanism and a flat countersunk head, it delivers consistent holding power and a flush finish. Pre-assembled for quick installation, each anchor requires a 3/8" hole and supports fixture thicknesses up to 2-3/4". Ideal for professional-grade masonry projects demanding durability and precision.


| ASIN | B071JYTSMD |
| Best Sellers Rank | #149,420 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #15 in Sleeve Anchors |
| Compatible groove diameter | 0.38 Inches |
| Date First Available | June 9, 2017 |
| Finish Type | Zinc |
| Head Style | Flat Countersunk |
| Item Diameter | 0.38 Inches |
| Item Weight | 5.33 pounds |
| Item model number | SAFP384 |
| Manufacturer | CONFAST |
| Maximum Shear Strength | 3082 |
| Number of Items | 50 |
| Number of Pieces | 50 |
| Set Name | 50-Piece |
| Shape | Block |
| Thread Size | 0.375 inches x 0.375 inches |
| UPC | 820274001417 |
E**C
Misleading description
IMPORTANT: The Phillips head screw is also a sleeve (inner threads). The anchor is a sleeve around a stud that will stick out of your concrete. Given the picture and the description, I thought that the sleeve left in the concrete would be flush and receive a Phillips head screw. But, they appear to be good/high quality. Even though I found a different solution at my local hardware store, I am keeping them for possible future projects rather than return.
A**R
They work
Make sure your hole is 3/4 of an inch I had to use percussive force to get them to go into my hole and I bent one the hole was not the correct diameter and length. These are holding up a shelf in a plaster wall over brick.
V**S
Need to know exact depth
I try to use in cinderblock was to small for my project so it either went to deep and did not have enough room to drill into 1x4 or it went to deep an just fell through the cinderblock( short case they were just to small in length for what I needed)
D**T
Good product
Correct item shipped in timely manner. Already used on a couple of jobs.
W**S
Cheap garbage
These things are made so chinsy that I couldn't even get them to work. Total waste of money. I bought some Hilti brand anchors and they work fine. I'll be getting at least a partial refund.
A**R
Great Anchors
Awesome Product!
H**A
Terrible quality
I was freaking out when anchoring steel plates, Phillips head is terrible quality and we messed up.
T**L
Did the job for me
I wanted to mount two rows of 2x4s on a stucco covered cinder block wall. They seem to have worked well as the boards seem rock solid and should provide a great support for the trellises I plan to attach to them. Drilling the holes deep enough was a little tricky at first, but I got the hang of it after a couple. I only needed 20, but I ruined several while learning, so I was glad I bought well more than I needed. I was a bit Leary as to whether I bought the right length, and perhaps 1/2 inch shorter would have worked better, but all seems fine.
Trustpilot
1 month ago
2 months ago