---
product_id: 56634474
title: "CONFAST 3/16\" x 2-3/4\" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box)"
brand: "confast"
price: "253.49 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Confast"
url: https://www.desertcart.tn/products/56634474-confast-3-16-x-2-3-4-hex-head-concrete
store_origin: TN
region: Tunisia
---

# Special threads reduce installation torque 3/16" diameter for precision fit Includes ANSI-standard carbide drill bit CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box)

**Brand:** confast
**Price:** 253.49 DT
**Availability:** ✅ In Stock

## Summary

> 🔧 Secure your projects with pro-grade speed and strength!

## Quick Answers

- **What is this?** CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) by confast
- **How much does it cost?** 253.49 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/56634474-confast-3-16-x-2-3-4-hex-head-concrete)

## Best For

- confast enthusiasts

## Why This Product

- Trusted confast brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Self-Tapping Power:** Taps directly into concrete, block, or brick—no additional anchors needed, saving time on every project.
- • **Hex Head Versatility:** Slotted hex head design allows quick driving with a nut driver or wrench for professional-grade fastening.
- • **Optimized Thread Design:** Special threads lower installation torque, making anchoring smoother and less strenuous.
- • **All-in-One Anchoring Kit:** Every box includes a perfectly matched drill bit for flawless installation and cost savings.
- • **Diamond Point Efficiency:** Easier screw driving reduces effort and speeds up your workflow, so you finish faster.

## Overview

The CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor is a premium carbon steel, blue-coated fastener designed for masonry, block, and brick. Each box includes a matched ANSI-standard carbide drill bit, enabling precise 5/32" holes for optimal holding power. Featuring a slotted hex head for versatile driving, diamond point tips for easier penetration, and special threads that reduce installation torque, this self-tapping anchor delivers professional-grade strength and efficiency for dry environment applications.

## Description

ApplicationsThe anchor is made from Carbon Steel, and is Blue. This anchor is designed for use in Concrete, Block, and Brick.EnvironmentThe anchor is designed for use in a Dry environment.Head Style The anchor is a Hex Washer head and is designed to allow the head to sit on top of the surface of the item being attached.Hole Diameter/Bit DiameterThe anchor requires a 5/32" hole to be drilled in the base material (Concrete, Block, and Brick). The hole should be drilled with carbide tipped bit that meets ANSI standards and used in a hammer drill.Driver RequiredA 1/4" nut driver is required for driving the anchor into the base material.Diameter of Anchor The diameter of the anchor is 3/16".Length Anchor The length of the anchor is 2-3/4"Thread LengthThe length of the threads on the anchor is 1-3/4" in length.Minimum EmbedmentThe minimum anchor embedment into the concrete is 1". Therefore, the anchor must be installed so that a minimum of 1" of the anchor is embedded into the concrete.Maximum Fixture ThicknessThe maximum fixture thickness or the maximum thickness of the material being fastened for a anchor is 1-1/4" to 1-3/4". This will ensure that the minimum embedment of 1" will be met.Fixture Hole DiameterThe hole in the fixture or material being fastened must be larger than the designated diameter of the anchor. The 3/16" diameter anchor requires the hole in the fixture to be 1/4".Spacing between AnchorsEach anchor must be spaced a minimum distance of 3" from each other when measured center to center.Edge DistanceIt is very important not to install the anchor any closer than 2-1/4" from an unsupported edge of the concrete.

Review: Very sturdy concrete screw - I used this to repair a corner pop on my foundation. The original material was lost so I had to form a new one. I used this anchor screw to provide support for the new corner. I drilled into the old concrete, added in an epoxy for anchors, placed the screws tightly, let it dry, setup a form, then troweled in the new concrete. Repair looks good (professional even), and seems very stable (time will tell). To determine the correct size, you need to decide how deep the screw will be set. I wanted mine sticking out by 1.5 inch to act as rebar for the concrete, and drilled about 1.25 inches deep into the existing foundation, so I used 2.75 inch long screws. If anchoring other material, then consider it's width plus the depth you want the screw to be drilled. Be sure to use an anchor epoxy for a permanent fix. A note about drilling the holes for these screws: There are a LOT of drill bits advertised as good for concrete, they aren't. You need a fairly long bit (longer than the length of the screw to be set in the concrete) and it needs to be a REAL CONCRETE DRILL BIT - like the "Bosch BM5000 Fast Spiral Masonry Set". You must use the correct bit width or you can damage the concrete (if too narrow a bit) or the screw won't hold (if too wide a bit). Length is really difficult to get right if you are working in a confined area, so take that into account. If you have a wide open work area then you need to determine how deep you want to set the screw and be sure you have a slightly longer bit - put a piece of tape on it to show how far in to drill and when the tape aligns with the concrete you stop. If you have a really confined area like I did, you need to also determine how much extra bit you need to fit into the area to even reach the drill drill point (I could get the drill about 2 to 3 inches away from the drill hole and no closer). This means you have to add that much to the overall length of the bit for your project to work. Finding long enough masonry drill bits can be a real problem.
Review: Top quality @ 1/2 the price of name brand - A bargain price for 100 that also includes a solid masonary bit when compared to name brand prices and performed just as good. I bought extra bits and you can see I never opened the package. Bit took a beating without being changed while drilling over 48 holes into grout in between bricks in the columns that support my home. 4 of the holes that I drilled didnt tighten up but was easily remedied by using a larger 1/4" scew. Never snapped any heads off. Would by again. Very pleased.

## Features

- BIT INCLUDED IN EACH BOX-Proper bit equals improved holding values and reduced cost
- SLOTTED HEX HEAD-Can be driven with a nut driver
- SELF-TAPPING-Taps threads directly into masonry and requires no other anchor
- DIAMOND POINT-Easier to drive the screw to save time
- SPECIAL ​THREADS - Decreases ​installation ​torque ​allowing ​screw ​to ​be ​installed ​faster and ​easier

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0714CF6FP |
| Best Sellers Rank | #26,246 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #25 in Concrete Screws |
| Brand | CONFAST |
| Compatible groove diameter | 0.25 Inches |
| Date First Available | May 15, 2017 |
| Exterior Finish | Alloy Steel |
| Fastener Size | 3/16 x 2-3/4 |
| Fastener Type | self-tapping-taps |
| Head Style | Hex Washer |
| Head Type | Hex |
| Item Diameter | 0.19 Inches |
| Item Weight | 1 pounds |
| Manufacturer | CONFAST |
| Material | Carbon Steel - Blue Coated |
| Maximum Shear Strength | 540 |
| Metal Type | Carbon Steel |
| Number of Pieces | 100 |
| Point Style | diamond point-easier |
| Size | 3/16" x 2-3/4" |
| Thread Class | Type 17 or Type 1 grip |
| Thread Coverage | Partially Threaded |
| Thread Size | 3/16 |
| Thread Style | Right Hand, Standard |
| Thread Type | Un |
| UPC | 820274000274 |

## Product Details

- **Exterior Finish:** Alloy Steel
- **Head Style:** Hex Washer
- **Item dimensions L x W x H:** 1 x 1 x 1 inches
- **Material:** Carbon Steel - Blue Coated
- **Thread Size:** 3/16

## Images

![CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) - Image 1](https://m.media-amazon.com/images/I/315nz-HnuWL.jpg)
![CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) - Image 2](https://m.media-amazon.com/images/I/3161wWtziVL.jpg)
![CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) - Image 3](https://m.media-amazon.com/images/I/31EF1OLNCdL.jpg)
![CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) - Image 4](https://m.media-amazon.com/images/I/31M7YxVpEXL.jpg)
![CONFAST 3/16" x 2-3/4" Hex Head Concrete Screw Anchor with Drill Bit for Anchoring to Masonry, Block or Brick (100 per Box) - Image 5](https://m.media-amazon.com/images/I/61SHPWJ3KoL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very sturdy concrete screw
*by R***E on May 10, 2019*

I used this to repair a corner pop on my foundation. The original material was lost so I had to form a new one. I used this anchor screw to provide support for the new corner. I drilled into the old concrete, added in an epoxy for anchors, placed the screws tightly, let it dry, setup a form, then troweled in the new concrete. Repair looks good (professional even), and seems very stable (time will tell). To determine the correct size, you need to decide how deep the screw will be set. I wanted mine sticking out by 1.5 inch to act as rebar for the concrete, and drilled about 1.25 inches deep into the existing foundation, so I used 2.75 inch long screws. If anchoring other material, then consider it's width plus the depth you want the screw to be drilled. Be sure to use an anchor epoxy for a permanent fix. A note about drilling the holes for these screws: There are a LOT of drill bits advertised as good for concrete, they aren't. You need a fairly long bit (longer than the length of the screw to be set in the concrete) and it needs to be a REAL CONCRETE DRILL BIT - like the "Bosch BM5000 Fast Spiral Masonry Set". You must use the correct bit width or you can damage the concrete (if too narrow a bit) or the screw won't hold (if too wide a bit). Length is really difficult to get right if you are working in a confined area, so take that into account. If you have a wide open work area then you need to determine how deep you want to set the screw and be sure you have a slightly longer bit - put a piece of tape on it to show how far in to drill and when the tape aligns with the concrete you stop. If you have a really confined area like I did, you need to also determine how much extra bit you need to fit into the area to even reach the drill drill point (I could get the drill about 2 to 3 inches away from the drill hole and no closer). This means you have to add that much to the overall length of the bit for your project to work. Finding long enough masonry drill bits can be a real problem.

### ⭐⭐⭐⭐⭐ Top quality @ 1/2 the price of name brand
*by B***I on April 11, 2019*

A bargain price for 100 that also includes a solid masonary bit when compared to name brand prices and performed just as good. I bought extra bits and you can see I never opened the package. Bit took a beating without being changed while drilling over 48 holes into grout in between bricks in the columns that support my home. 4 of the holes that I drilled didnt tighten up but was easily remedied by using a larger 1/4" scew. Never snapped any heads off. Would by again. Very pleased.

### ⭐⭐⭐⭐ Of course, a good hammer drill helps too.
*by A***R on August 11, 2024*

I don’t know how any screw bites into concrete, but these do it. The key seems to be pre-drilling with a bit one size smaller than the screw’s diameter. With a 1/4 inch concrete screw that would be a 3/16 inch concrete drill bit, and so on.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-07*