---
product_id: 328941705
title: "Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D"
brand: "metabo hpt"
price: "31789 som"
currency: KGS
in_stock: true
reviews_count: 3
url: https://www.desertcart.kg/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21
store_origin: KG
region: Kyrgyzstan
---

# 2,000 nails per box 3-1/2 In. length 21 Degree angle Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D

**Brand:** metabo hpt
**Price:** 31789 som
**Availability:** ✅ In Stock

## Summary

> Nail it with precision! 🔨

## Quick Answers

- **What is this?** Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D by metabo hpt
- **How much does it cost?** 31789 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21)

## Best For

- metabo hpt enthusiasts

## Why This Product

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

## Key Features

- • **Lightweight Power:** Weighs only 31.1 pounds, making it easy to handle on the job site.
- • **High Volume Supply:** Comes with 2,000 nails, keeping your projects running without interruption.
- • **Robust Construction:** Smooth shank design ensures superior holding power in concrete forms.
- • **Effortless Efficiency:** Designed for quick and easy removal, perfect for temporary scaffolding.
- • **Precision Engineering:** 21-degree full round head for optimal performance with NR3675DD nailers.

## Overview

The Metabo HPT Collated Duplex Nail is a high-performance solution for construction professionals, featuring 2,000 durable 3-1/2 inch nails designed for air-powered nailers. Ideal for concrete forms and temporary scaffolding, these nails offer a smooth shank for enhanced holding power and are packaged for convenience.

## Description

Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D

## Features

- TYPE: 21 Degree Full Round Head Smooth Shank Plastic Strip Duplex Nails
- APPLICATION: Duplex nails are ideal for concrete forms and temporary scaffolding designed for quick and easy removal
- COUNT: 2,000 per box
- LENGTH: 3-1/2 In. length x .131 in diameter with 3” drive length
- TREATMENT: Bright Basic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Koki Holdings America, Ltd |
| Part Number | 50312-16D |
| Item Weight | 31.1 pounds |
| Package Dimensions | 11.25 x 9 x 4.25 inches |
| Item model number | 50312-16D |
| Style | w/ 3-1/2 Inch Duplex Nails (2,000 Count) |
| Power Source | Air Powered |
| Item Package Quantity | 1 |
| Head Style | domed |
| Included Components | 50312-16D |
| Batteries Required? | No |

## Images

![Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D - Image 1](https://m.media-amazon.com/images/I/61MR-M8qnvL.jpg)
![Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D - Image 2](https://m.media-amazon.com/images/I/41IAuSaFieS.jpg)

## Questions & Answers

**Q: Metabo hpt strip nails / plastic collation full round head is this nail galvanized if not is the nail ok to use in a deck on pressure treated wood.**
A: These nails have a bright finish, not galvanized.  Also, these are duplex nails.  Duplex nails are ideal for concrete forms and temporary scaffolding designed for quick and easy removal.  They are not used for deck construction or permanent construction.

**Q: Does the gun shoot a 7d and are they available?**
A: Hello there! 
The Metabo HPT 36V Cordless Duplex Nailer will shoot 6D (50214-6D), 8D (50234-8D) and 16D (50312-16D) duplex fasteners.  They  are all Bright, Non-Coated, Smooth Shank fasteners.

**Q: Will these work in the metabo nr83a5 guns?- i realize these nail guns are for 3 1/4 inch nails- just wondered if they will work anyway**
A: No, these nails will only work in the Duplex Nailer (Model NR3675DD) - they will not work in the NR83A5. However, to answer your question, the NR83A5 nailer will accept nails collated in plastic strips between 20° and 22° - the nails can range in length from 2” to 3-1/4” and in diameter from 0.113” to 0.131”. But again, the Duplex nails in this picture will not work in the NR83A5 nailer.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    The only game in town
  

*by R***S on Reviewed in the United States on March 25, 2022*

This nailer, and nails are game changing in my business.

### ⭐⭐ 2.0 out of 5 stars







  
  
    May be difficult to pull with hammer
  

*by S***. on Reviewed in the United States on March 31, 2024*

Doesn't matter if your hammer is new or old, some heads pull fine, others round off.

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Almost impossible to remove nails.
  

*by E***N on Reviewed in the United States on November 10, 2022*

I was hoping this would be a game changer in my form set up and removal. The nails work great nailing, but the duplex head is to small for the claws on a hammer to pull the nails back out. We tried several hammers to try to remove the nails and the only thing that worked was using a second hammer to hammer the duplex head tight into the claws of the first hammer. It defeated the purpose of a duplex head if you can’t remove the nail efficiency. The duplex head needs to be redesigned so that the nail can be removed quickly after use.

## Frequently Bought Together

- Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D
- Metabo HPT 36V MultiVolt™ Cordless Forming Nailer | 21 Degree Duplex Nail, up to 3-1/2-Inch | 1-36V Battery + Charger | NR3675DD
- Metabo HPT Collated Duplex Nail | 2-3/4 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50234-8D

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**Shop now:** [https://www.desertcart.kg/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21](https://www.desertcart.kg/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-06*