--- product_id: 547774969 title: "Coupling nut" brand: "nidaye" price: "€ 24.86" currency: EUR in_stock: true reviews_count: 11 category: "Nidaye" url: https://www.desertcart.de/products/547774969-coupling-nut store_origin: DE region: Germany --- # 3/8"-16 UNC Thread Size Fully Threaded for Tight Connection Zinc Plated Low Carbon Steel Coupling nut **Brand:** nidaye **Price:** € 24.86 **Availability:** ✅ In Stock ## Summary > 🔧 Connect with Confidence — Join, Secure, and Build Like a Pro! ## Quick Answers - **What is this?** Coupling nut by nidaye - **How much does it cost?** € 24.86 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/547774969-coupling-nut) ## Best For - nidaye enthusiasts ## Why This Product - Trusted nidaye brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Zinc-Plated Finish:** Low carbon steel with corrosion-resistant zinc plating keeps your hardware looking sharp and lasting longer indoors. - • **Bulk Pack for Pro-Level Projects:** 10-pack supply means you’re ready to tackle multiple builds or repairs without running out mid-project. - • **Hex Drive for Effortless Installation:** 9/16" hex shape fits standard wrenches, making tightening quick and hassle-free—no stripped nuts here. - • **Precision Threading for Seamless Joins:** 3/8"-16 UNC threads ensure perfect compatibility with standard rods for a secure fit every time. - • **End-to-End Strength with Full Thread Coverage:** Fully threaded design allows rods to meet in the middle, creating a rock-solid connection that won’t let you down. ## Overview This 10-pack of 3/8"-16 UNC rod coupling nuts by NIDAYE features fully threaded low carbon steel construction with a zinc-plated finish for indoor, non-corrosive environments. Measuring 1-3/4" in length and designed with a hex drive for easy tightening, these coupling nuts provide a reliable, durable solution for joining threaded rods in professional and DIY projects alike. ## Description Product description Coupling Nuts are Also called couplers and rod couplings, coupling nuts are used for quickly joining two pieces of threaded rod. They are fully threaded, allowing the two rods to meet in the middle, forming a tight connection. They are similar to hex nuts with extreme height measurements giving it length. The coupling nut joins two pieces of threaded rod. More Fasteners are available! Rod couplding nut UNC Thread Size, NOT metric 1"-8, rod coupling nuts for quickly joining two pieces of 1" inch threaded rod Excellent Material Low carbon steel with zinc plated finishing, good for use indoors, in non-corrosie environments Widely function Fully threaded, allowing the two rods to meet in the middle, forming a tight connection Review: ⭐️⭐️⭐️⭐️⭐️ Excellent Value and Solid Quality - These NIDAYE 1/4"-20 coupling nuts are exactly what I needed for my project. The threading is clean and consistent, and they fit perfectly with standard 1/4"-20 rods and bolts without any issues. The hex shape makes them easy to tighten, and they feel durable and well-made—not flimsy or weak. The 50-pack is a great value and gives you plenty of nuts for multiple uses. If you’re looking for reliable, well-threaded coupling nuts for DIY or professional use, these are a great choice. Highly recommend! Review: good bulk buy price, zero flaws or defects and fast shipping. - fast shipping, exactly as pictured and described. exactly 50 with zero flaws or defects. the $9.00usd was a good price. using them with uni-strut and pallet racking to build a free floating player game cage that supports the player while playing flying vr games. very happy with my purchase. ## Features - Thread Size: 3/8"-16, rod coupling nuts for quickly joining two pieces of 3/8" inch threaded rod - Widely function:Fully threaded, allowing the two rods to meet in the middle, forming a tight connection - Material: Low carbon steel with zinc plated finishing, good for use indoors, in non-corrosive environments - Lenght: 1-3/4" | Width across the flats - 9/16" (Requires 9/16" Hex Wrench) - Item type: Hex coupling nut ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7QGP679 | | Best Sellers Rank | #33,560 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Coupling Nuts | | Brand | NIDAYE | | Color | silver | | Compatible Groove Diameter | 0.38 Inches | | Customer Reviews | 4.8 out of 5 stars 153 Reviews | | Drive Style | External Hex | | Exterior Finish | Zinc | | Fastener Type | Coupling | | Finish Types | zinc plated | | Grade Rating | commercial | | Inside Thread Size | 3/8-16 | | Item Diameter | 0.38 Inches | | Item Dimensions | 1.75 x 0.4 x 0.4 inches | | Item Weight | 380 Grams | | Manufacturer | NIDAYE | | Material | Low Carbon Steel | | Material Type | Low Carbon Steel | | Metal Type | Low Carbon Steel | | Number Of Items | 10 | | Number of Pieces | 10 | | Outside Diameter | 0.4 Inches | | Part Number | N-CP-3/8 | | Screw Head Style | hexagon | | Set Name | 10 Pack 3/8"-16 Rod Coupling Nut Set | | Size Name | 3/8"-16 | | Thread Class | Class 2A | | Thread Coverage | Fully Threaded | | Thread Size | 3/8"-16 | | Thread Style | Right Hand | | Thread Type | Unified National Coarse | | Unit Count | 10.0 Count | ## Product Details - **Color:** silver - **Exterior Finish:** Zinc - **Fastener Type:** Coupling - **Material:** Low Carbon Steel - **Thread Size:** 3/8"-16 ## Images ![Coupling nut - Image 1](https://m.media-amazon.com/images/I/51JTIt7y31L.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ ⭐️⭐️⭐️⭐️⭐️ Excellent Value and Solid Quality *by B***H on February 2, 2026* These NIDAYE 1/4"-20 coupling nuts are exactly what I needed for my project. The threading is clean and consistent, and they fit perfectly with standard 1/4"-20 rods and bolts without any issues. The hex shape makes them easy to tighten, and they feel durable and well-made—not flimsy or weak. The 50-pack is a great value and gives you plenty of nuts for multiple uses. If you’re looking for reliable, well-threaded coupling nuts for DIY or professional use, these are a great choice. Highly recommend! ### ⭐⭐⭐⭐⭐ good bulk buy price, zero flaws or defects and fast shipping. *by H***K on February 11, 2026* fast shipping, exactly as pictured and described. exactly 50 with zero flaws or defects. the $9.00usd was a good price. using them with uni-strut and pallet racking to build a free floating player game cage that supports the player while playing flying vr games. very happy with my purchase. ### ⭐⭐⭐⭐⭐ A pleasure to use. *by B***O on May 11, 2025* These coupling nuts worked perfectly. Seems to be very well made and the threads were good. I had no trouble with threading these onto the carriage bolts that I was using them on. I tack welded a wing nut on one end to make them work as an extended fastener to reach into a metal channel that secured the carriage bolts. The quality of the thread taps and plating were great, not one issue with any of them. ## Frequently Bought Together - NIDAYE 10 Packs 3/8"-16 Rod Coupling Nuts, UNC Threaded Hex Coupling Nut，Length: 1-3/4" - Wensilon(20 pcs) 1/4"-20 Coupling Nuts zinc, Extended Hexagon Plated Steel Rod Coupling Nuts - Zadery Zinc Plated 3/8"-16 Fully Threaded Steel Rod, 4 Pieces 12" Length Long Threaded Screw --- ## 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.de/products/547774969-coupling-nut](https://www.desertcart.de/products/547774969-coupling-nut) --- *Product available on Desertcart Germany* *Store origin: DE* *Last updated: 2026-07-10*