--- 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: "€ 398.49" currency: EUR in_stock: true reviews_count: 5 category: "Metabo Hpt" url: https://www.desertcart.gr/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21 store_origin: GR region: Greece --- # 3.5-inch length for deep, secure fastening 2,000 nails per box for high-volume projects 21° angled full round head for precision drive Metabo HPT Collated Duplex Nail | 3-1/2 Inch | 21 Degree | Plastic Strip | For Use with NR3675DD | 50312-16D **Brand:** metabo hpt **Price:** € 398.49 **Availability:** ✅ In Stock ## Summary > 🔨 Nail it right, nail it fast — stay ahead with Metabo HPT Duplex Nails! ## 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?** € 398.49 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/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 - • **Bulk Supply for Big Jobs:** 2,000 nails per box means you stay stocked and unstoppable on site. - • **Durability Meets Convenience:** Bright basic treatment nails resist corrosion while plastic strip collations speed up your workflow. - • **Optimized for Metabo HPT NR3675DD:** Perfectly compatible with your duplex nail gun for seamless performance. - • **Precision Engineered for Efficiency:** 21° full round head and smooth shank ensure flawless, jam-free nailing every time. - • **Semi-Permanent Hold with Easy Removal:** Duplex design offers strong hold yet allows quick removal when needed—ideal for concrete forms and scaffolding. ## Overview Metabo HPT 3-1/2 inch duplex nails, designed with a 21° full round head and smooth shank, come in a bulk pack of 2,000 plastic strip collated nails. Engineered for use with the NR3675DD nail gun, these bright basic treated nails provide strong, semi-permanent fastening ideal for concrete forms and temporary scaffolding, combining durability with easy removal to maximize job site efficiency. ## Description Genuine Metabo HPT nails and staples are manufactured at higher standards for material and workmanship to help eliminate downtime, so you can work more efficiently. Review: These 50312-16D 3-1/2" Duplex Nails Work Great in My Metabo NR3675DD Duplex Nail Gun. - These 50312-16D 3-1/2" Duplex Nails Work Great in My Metabo NR3675DD Duplex Nail Gun. These cannot possibly be an actual 16D nail. At least in my experience, just as others have said, you better have a real good pry bar or wonder bar to get these nails out. The heads are SUPER small and a hammer claw just comes right over the top. I don't mind. Still a heck of a lot easier to pull if needed than a non-duplex nail. Although- I consider these semi permanent. NOT temporary. Review: Box already opened - Box was already opened and damaged. A lot of the strips of nails are breaking/falling apart. I paid for nails for a duplex nail gun and half aren’t usable because the plastic breaks easily when grabbing a strip of nails out of the box. ## 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 | |---------------|-------| | ASIN | B093LSSQBW | | Batteries Included? | No | | Batteries Required? | No | | Best Sellers Rank | #177,883 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Duplex Nails | | Customer Reviews | 4.1 4.1 out of 5 stars (19) | | Date First Available | April 27, 2021 | | Head Style | domed | | Included Components | 50312-16D | | Item Package Quantity | 1 | | Item Weight | 31.1 pounds | | Item model number | 50312-16D | | Manufacturer | Koki Holdings America, Ltd | | Part Number | 50312-16D | | Power Source | Air Powered | | Product Dimensions | 10.9 x 8.5 x 3.1 inches | | Style | w/ 3-1/2 Inch Duplex Nails (2,000 Count) | | Warranty Description | 30-Day Money Back Guarantee | ## 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 ### ⭐⭐⭐⭐⭐ These 50312-16D 3-1/2" Duplex Nails Work Great in My Metabo NR3675DD Duplex Nail Gun. *by J***H on January 5, 2025* These 50312-16D 3-1/2" Duplex Nails Work Great in My Metabo NR3675DD Duplex Nail Gun. These cannot possibly be an actual 16D nail. At least in my experience, just as others have said, you better have a real good pry bar or wonder bar to get these nails out. The heads are SUPER small and a hammer claw just comes right over the top. I don't mind. Still a heck of a lot easier to pull if needed than a non-duplex nail. Although- I consider these semi permanent. NOT temporary. ### ⭐⭐ Box already opened *by M***O on December 6, 2024* Box was already opened and damaged. A lot of the strips of nails are breaking/falling apart. I paid for nails for a duplex nail gun and half aren’t usable because the plastic breaks easily when grabbing a strip of nails out of the box. ### ⭐⭐⭐⭐⭐ The only game in town *by R***S on March 25, 2022* This nailer, and nails are game changing in my business. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21](https://www.desertcart.gr/products/328941705-metabo-hpt-collated-duplex-nail-3-1-2-inch-21) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-07-17*