---
product_id: 672364890
title: "Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta..."
brand: "napredak"
price: "S$70"
currency: SGD
in_stock: true
category: "Napredak"
url: https://www.desertcart.sg/products/672364890-napredak-3-8-x-3-1-2-strike-anchor-hammer
store_origin: SG
region: Singapore
---

# Expansion design for firm hold 3/8" diameter precision fit Carbon steel heavy-duty strength Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta...

**Brand:** napredak
**Price:** S$70
**Availability:** ✅ In Stock

## Summary

> 🔩 Nail it every time with anchors that mean business!

## Quick Answers

- **What is this?** Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... by napredak
- **How much does it cost?** S$70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/672364890-napredak-3-8-x-3-1-2-strike-anchor-hammer)

## 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

- • **Effortless Expansion Grip:** Innovative hammer drive pin expands inside drilled holes for a mechanical hold that won’t budge.
- • **Rock-Solid Fastening Power:** Carbon steel anchors engineered to withstand intense hammer strikes without bending or breaking.
- • **Precision-Sized for Concrete:** 3/8" diameter and 3-1/2" length optimized for secure masonry and structural attachments.
- • **Speedy Installation Workflow:** Simple drill, drive, and tighten process saves time on every project—no fuss, just results.
- • **Versatile Industrial & Home Use:** Perfect for everything from heavy-duty industrial builds to weekend DIY cement repairs.

## Overview

The Napredak Hammer Drive Pin Anchor is a 20-piece set of 3/8" x 3-1/2" carbon steel strike anchors designed for secure fastening in concrete and cement. Featuring a hammer-driven expansion design, these anchors provide a reliable mechanical hold with easy installation, making them ideal for both industrial and household projects requiring durable, heavy-duty fastening solutions.

## Description

Napredak Hammer Drive Pin Anchor,3/8”x3-1/2” Strike Anchor for Cement,20Pcs | for Concrete,Carbon Steel,Metal Hit Core Nail,Bolt Fastening,Expansion Design,Hammner Drive Anchor Bolts,Easy to Install: desertcart.com: Industrial & Scientific

## Features

- Heavy-Duty Carbon Steel Construction: Made from carbon steel, High strength cement nail anchors can maintain original shape under strong hammer impact. This 3/8 x 3-1/2 strike anchor is built for solid fastening jobs in concrete and cement applications where stable hold matters
- Sized for Concrete Fastening Jobs: Each anchor diameter 3/8 inch, 3-1/2 inch in length and flange nut diameter 0.7 inch. Offering a practical size for masonry fastening, structural attachment, and general installation work
- Hammer Drive Pin Expansion Design: The hammer drive pin expands the anchor inside the drilled hole for a firm mechanical hold, helping simplify installation for fastening tasks that need stable anchoring performance
- Simple Installation Process: Drill a 3/8-inch hole on the base, drive the anchor nail into the hole, use a hammer to hit the nail and ensure that it is fully inserted into the bolt, tighten the screw. The straightforward installation method supports faster setup on concrete and cement substrates
- For Industrial and Household Applications: Suitable for use in industrial buildings, repair work, and household projects that require fastening into sturdy base materials such as concrete and cement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D7M3XG97 |
| Best Sellers Rank | #161,282 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #29 in Drive Anchors |
| Brand | Napredak |
| Color | Gray |
| Compatible Groove Diameter | 9.53 millimeters |
| Customer Reviews | 4.2 4.2 out of 5 stars (9) |
| Fastener Type | Hammer-In |
| Item Diameter | 9.53 millimeters |
| Item Dimensions | 5.7 x 1.73 x 5.51 inches |
| 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:** Gray
- **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

![Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... - Image 1](https://m.media-amazon.com/images/I/41Z02-O0B0L.jpg)
![Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... - Image 2](https://m.media-amazon.com/images/I/51OZMPtglxL.jpg)
![Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... - Image 3](https://m.media-amazon.com/images/I/51dTkZUlK4L.jpg)
![Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... - Image 4](https://m.media-amazon.com/images/I/61OUo2KGFgL.jpg)
![Napredak 3/8” x 3-1/2” Strike Anchor, Hammer Drive pin Expansion Anchor, Meta... - Image 5](https://m.media-amazon.com/images/I/61Wn0+K2KhL.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 Singapore*
*Store origin: SG*
*Last updated: 2026-09-12*