---
product_id: 91522905
title: "CONFAST 3/8\" x 4\" Flat Sleeve Anchor Zinc Plated (50 per Box)"
brand: "confast"
price: "S/.487"
currency: PEN
in_stock: true
reviews_count: 8
category: "Confast"
url: https://www.desertcart.pe/products/91522905-confast-3-8-x-4-flat-sleeve-anchor-zinc-plated
store_origin: PE
region: Peru
---

# 360° expansion for max grip Pre-assembled, ready to install 3/8" diameter precision fit CONFAST 3/8" x 4" Flat Sleeve Anchor Zinc Plated (50 per Box)

**Brand:** confast
**Price:** S/.487
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock it down with confidence—anchors that mean business!

## Quick Answers

- **What is this?** CONFAST 3/8" x 4" Flat Sleeve Anchor Zinc Plated (50 per Box) by confast
- **How much does it cost?** S/.487 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/91522905-confast-3-8-x-4-flat-sleeve-anchor-zinc-plated)

## 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

- • **All-Steel Durability:** Heavy-duty zinc-plated carbon steel built to withstand demanding projects.
- • **Ready Out of the Box:** Pre-assembled anchors save time—no fumbling with parts on site.
- • **360° Expansion Power:** Ensures consistent, rock-solid holding in concrete, brick, or block.
- • **Precision Fit, Zero Guesswork:** Anchor size equals hole size for flawless installation every time.
- • **Flush Finish, Professional Look:** Flat countersunk head prevents unsightly protrusions for sleek results.

## Overview

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.

## Description

ApplicationsThe anchor is made from Carbon Steel, and is Zinc Plated. 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 Flat Countersunk head and is designed to prevent the head from protruding above the surface of the item being attached.Hole Diameter/Bit DiameterThe anchor requires a 3/8" 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.Diameter of Anchor The diameter of the anchor is 3/8".Length Anchor The length of the anchor is 4"Minimum EmbedmentThe minimum anchor embedment into the concrete is 1-1/4". Therefore, the anchor must be installed so that a minimum of 1-1/4" 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 2-3/4". This will ensure that the minimum embedment of 1-1/4" 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 3/8" diameter anchor requires the hole in the fixture to be 1/2".Spacing between AnchorsEach anchor must be spaced a minimum distance of 3-3/4" from each other when measured center to center.Edge DistanceIt is very important not to install the anchor any closer than 1-7/8" from an unsupported edge of the concrete.

Review: 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.
Review: 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.

## Features

- VERSATILE - Can be installed in a wide variety of masonry, solid concrete, brick or block
- 360 DEGREE EXPANSION - Provides consistent holding values in a wide range of base materials
- PRE-ASSEMBLED - Ready to install no separate parts required
- ALL STEEL PARTS - Heavy duty for the most demanding jobs
- ANCHOR SIZE EQUALS HOLE SIZE - Easy to remember correct hole size for best results

## Technical Specifications

| Specification | Value |
|---------------|-------|
| 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 |

## Product Details

- **Brand:** CONFAST
- **Color:** Silver
- **Fastener Type:** Solid
- **Material:** Carbon Steel Zinc Plated
- **Size:** One Size

## Images

![CONFAST 3/8" x 4" Flat Sleeve Anchor Zinc Plated (50 per Box) - Image 1](https://m.media-amazon.com/images/I/61Q4XgeLFNL.jpg)
![CONFAST 3/8" x 4" Flat Sleeve Anchor Zinc Plated (50 per Box) - Image 2](https://m.media-amazon.com/images/I/71S7s3ddzNL.jpg)
![CONFAST 3/8" x 4" Flat Sleeve Anchor Zinc Plated (50 per Box) - Image 3](https://m.media-amazon.com/images/I/81Kor0O63iL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Misleading description
*by E***C on January 18, 2021*

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.

### ⭐⭐⭐⭐ They work
*by A***R on October 11, 2021*

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.

### ⭐⭐⭐ Need to know exact depth
*by V***S on March 3, 2022*

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)

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-03-12*