---
product_id: 672364890
title: "3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack"
brand: "napredak"
price: "291.52 DT"
currency: TND
in_stock: true
category: "Napredak"
url: https://www.desertcart.tn/products/672364890-3-8-concrete-anchors-3-1-2-in-hammer-drive
store_origin: TN
region: Tunisia
---

# Precise 3/8 x 3-1/2 in size Center-pin expansion tech Carbon steel strength 3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack

**Brand:** napredak
**Price:** 291.52 DT
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock it down with power and precision — your concrete’s new best friend!

## Quick Answers

- **What is this?** 3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack by napredak
- **How much does it cost?** 291.52 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/672364890-3-8-concrete-anchors-3-1-2-in-hammer-drive)

## Best For

- napredak enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Crafted from premium carbon steel for industrial-grade strength and longevity.
- • **Bulk Pack Convenience:** 20-piece set guarantees you have enough anchors to complete multiple projects without interruption.
- • **Versatile Application:** Ideal for everything from heavy-duty industrial use to home repairs on concrete and cement surfaces.
- • **Secure Mechanical Grip:** Innovative center-pin expansion anchors firmly into concrete, delivering rock-solid fastening.
- • **Precision Fit Every Time:** Clearly labeled 3/8 x 3-1/2 inch size ensures perfect compatibility with your concrete projects.

## Overview

Napredak’s 3/8 x 3-1/2 inch hammer drive concrete anchors are engineered from carbon steel with a center-pin expansion mechanism, providing reliable, heavy-duty fastening for concrete and cement surfaces. This 20-pack set is perfect for professionals and DIYers seeking durable, precision-fit anchors for industrial, maintenance, or household projects.

## Description

Napredak 3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack | Carbon steel masonry anchors with center drive-pin expansion for concrete and cement fastening projects: desertcart.com: Industrial & Scientific

## Features

- CARBON STEEL CONSTRUCTION: Built with a carbon steel body and center pin, these concrete anchor bolts serve as carbon steel concrete fasteners for mounting hardware on concrete surfaces.
- CLEAR NOMINAL SIZE: Each concrete bolt is labeled 3/8 x 3-1/2 inches, making the selected size easy to verify before use in concrete or cement fastening projects.
- CENTER-PIN EXPANSION: The hammer drive pin anchor format expands the body inside concrete or cement, giving these expansion anchors a mechanical fastening point for the attached fixture.
- CONCRETE AND CEMENT USE: These cement anchors suit industrial concrete fastening, building maintenance, repair, and household projects on concrete or cement bases.
- 20-PIECE PACKAGE: The box contains 20 drive pin anchors in one matching nominal size, supplying a single-size set for projects that require multiple anchor points.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7M3XG97 |
| Best Sellers Rank | #250,009 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Drive Anchors |
| Brand | Napredak |
| Color | Gold |
| Compatible Groove Diameter | 9.53 millimeters |
| Customer Reviews | 4.2 4.2 out of 5 stars (10) |
| Fastener Type | Hammer-In |
| Item Diameter | 9.53 millimeters |
| Item Dimensions | 5.7 x 1.73 x 5.51 inches |
| Item Highlight | Carbon steel masonry anchors with center drive-pin expansion for concrete and cement fastening projects |
| Item Shape | Cylindrical |
| Manufacturer | Napredak |
| Material Type | Carbon Steel |
| Number Of Items | 20 |
| Number of Pieces | 20 |
| Outside Diameter | 9.53 millimeters |
| Part Number | 3889 |
| Screw Head Style | Round |
| Set Name | 20-Piece Set |
| Size Name | 3/8"x3-1/2" |
| Thread Size | 3/8" |
| Unit Count | 20 Count |

## Product Details

- **Brand:** Napredak
- **Color:** Gold
- **Item dimensions L x W x H:** 5.7 x 1.73 x 5.51 inches
- **Material:** Carbon Steel
- **Size:** 3/8"x3-1/2"

## Images

![3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack - Image 1](https://m.media-amazon.com/images/I/31J6y7WCUCL.jpg)
![3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack - Image 2](https://m.media-amazon.com/images/I/41S7P9dkwpL.jpg)
![3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack - Image 3](https://m.media-amazon.com/images/I/41OS-q6gKbL.jpg)
![3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack - Image 4](https://m.media-amazon.com/images/I/51dDK2OUAzL.jpg)
![3/8 Concrete Anchors, 3-1/2 in Hammer Drive Anchors, 20 Pack - Image 5](https://m.media-amazon.com/images/I/51iQx3N8EKL.jpg)

## Available Options

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

## Questions & Answers

**Q: What materials is it made of?**
A: The Napredak Strike Anchor is made of carbon steel with a galvanized finish. The galvanized coating provides corrosion resistance, making these anchors suitable for both indoor and outdoor applications.

**Q: Can it be used on brick?**
A: No, it is specifically designed for solid concrete and cement only. The product description clearly states:Expansion bolts are suitable for sturdy substrates, such as solid concrete, and are not suitable for other masonry materials.

**Q: Is it weather resistant?**
A: Yes, the Napredak Strike Anchor is weather resistant thanks to its galvanized finish. The galvanized coating on the carbon steel provides corrosion resistance, making these anchors suitable for both indoor and outdoor use.

**Q: Does it require a special drill bit?**
A: Yes, the Napredak Strike Anchor requires a hard alloy (carbide) drill bit for proper installation. According to the instructions, you need to drill a 3/8-inch hole using an impact drill with hard alloy drill bits.

**Q: How many are included?**
A: The Napredak Strike Anchor comes in a pack of 20 pieces. Each anchor includes a screw anchor, flange nut, and nail for complete installation. This gives you enough fasteners for multiple projects or provides extras for future use.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-25*