--- product_id: 17836261 title: "ProConnex EMT Set Screw Coupling 1/2\" 50-Pack" brand: "sigma engineered solutions" price: "286 zł" currency: PLN in_stock: true reviews_count: 8 category: "Sigma Engineered Solutions" url: https://www.desertcart.pl/products/17836261-proconnex-emt-set-screw-coupling-1-2-50-pack store_origin: PL region: Poland --- # 50-pack contractor bulk supply Set screw design for secure grip Durable zinc die-cast construction ProConnex EMT Set Screw Coupling 1/2" 50-Pack **Brand:** sigma engineered solutions **Price:** 286 zł **Availability:** ✅ In Stock ## Summary > 🔧 Connect with confidence — the pro’s choice for seamless EMT coupling! ## Quick Answers - **What is this?** ProConnex EMT Set Screw Coupling 1/2" 50-Pack by sigma engineered solutions - **How much does it cost?** 286 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/17836261-proconnex-emt-set-screw-coupling-1-2-50-pack) ## Best For - sigma engineered solutions enthusiasts ## Why This Product - Trusted sigma engineered solutions brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Zinc die-cast body delivers corrosion resistance and long-term durability. - • **Bulk Value Pack:** 50 pieces in a reusable canister—ideal for professionals who demand efficiency and organization. - • **Certified Safety:** UL and CSA listings guarantee compliance with top industry safety standards. - • **Effortless Installation:** Tri-combo set screws ensure quick, reliable connections every time. - • **Concrete-Tight Assurance:** Approved for concrete-tight applications when taped, perfect for demanding projects. ## Overview The SIGMA ENGINEERED SOLUTIONS ProConnex TC-511 EMT Set Screw Coupling 1/2" 50-Pack offers a professional-grade, zinc die-cast coupling designed for secure, concrete-tight conduit connections. UL and CSA certified, this bulk pack ensures reliable, code-compliant installations with easy tri-combo screw fastening, perfect for contractors and serious DIYers seeking durability and efficiency. ## Description Upgrade your electrical installations with the Sigma Engineered Solutions ProConnex TC-511 EMT Set Screw Coupling, available in a convenient 50-pack. This coupling is designed to seamlessly connect two lengths of 1/2-inch EMT conduit, providing secure and reliable connections for electrical wiring setups. Featuring a set screw type design with tri-combo screws, installation is made easy while ensuring a tight grip. Concrete-tight when taped, this coupling is suitable for dry location applications, ensuring versatility in usage. Crafted from durable zinc die-cast material, it ensures long-lasting performance. With UL and CSA listings, this product meets safety standards and ensures peace of mind. Review: Nice packaging, arrived early! - I love that these come in a plastic canister with lid, all tidy, for stowing in my shed. I have a bunch of 5-foot 1/2" EMT conduit that I plan to put together in double or triple lengths to top t-post trellises as I get new beds built. I know that eventually I will use dozens of these connectors, so I was glad to get a good price on them. And they came earlier than expected! Review: Price and listed conduit fittings - Great price and UL listed product. Thank you so much! ## Features - Set screw type coupling - Approved for concrete-tight applications when taped - Zinc die-cast construction - Product is UL and CSA listed, suitable for dry locations - Contractor pack includes 50 pieces per jar ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B006VXC3WS | | Best Sellers Rank | #556,794 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,096 in Electrical Conduit Fittings | | Brand | Sigma Engineered Solutions | | Brand Name | Sigma Engineered Solutions | | Color | Gray | | Connector Type | Coupling | | Customer Reviews | 4.6 out of 5 stars 124 Reviews | | Exterior Finish | Zinc | | Global Trade Identification Number | 00031857652401 | | Item Dimensions | 1.33 x 0.92 x 1.05 inches | | Item Type Name | HOSE_PIPE_FITTING | | Item Weight | 1.73 Pounds | | Item dimensions L x W x H | 1.33 x 0.92 x 1.05 inches | | Manufacturer | Sigma Engineereed Solutions | | Manufacturer Warranty Description | Warranty | | Material | Die Cast Zinc | | Material Type | Die Cast Zinc | | Model Number | TC-511 | | Number of Pieces | 50 | | Size | No Size | | Thread Size | ['1/2 inch'] | | Thread Type | NPT | | UPC | 031857652401 | | Unit Count | 50.0 Count | ## Product Details - **Brand:** Sigma Engineered Solutions - **Color:** Gray - **Connector Type:** Coupling - **Exterior Finish:** Zinc - **Item Weight:** 1.73 Pounds - **Item dimensions L x W x H:** 1.33 x 0.92 x 1.05 inches - **Material:** Die Cast Zinc - **Size:** No Size - **Thread Size:** ['1/2 inch'] - **Thread Type:** NPT ## Images ![ProConnex EMT Set Screw Coupling 1/2" 50-Pack - Image 1](https://m.media-amazon.com/images/I/71+egMyOa-L.jpg) ## Questions & Answers **Q: What size are the screws?** A: 10/32 **Q: What's the size of the set screw? Is it a S1 or S2?** A: I believe the question you’re asking is what type of screwdriver is needed it to turn the fastener S2 or a flat head ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice packaging, arrived early! *by D***R on March 15, 2024* I love that these come in a plastic canister with lid, all tidy, for stowing in my shed. I have a bunch of 5-foot 1/2" EMT conduit that I plan to put together in double or triple lengths to top t-post trellises as I get new beds built. I know that eventually I will use dozens of these connectors, so I was glad to get a good price on them. And they came earlier than expected! ### ⭐⭐⭐⭐⭐ Price and listed conduit fittings *by N***N on April 10, 2024* Great price and UL listed product. Thank you so much! ### ⭐⭐⭐⭐⭐ Great product *by O***Y on August 15, 2020* The coupling are very strong and work great. The price very good. ## Frequently Bought Together - Sigma Electric TC-511 HOSE_PIPE_FITTING, No Size, Gray, 50 Count - SIGMA ENGINEERED SOLUTIONS ProConnex TC-501 EMT Set Screw Connector 1/2" 50-Pack - Sigma Electric ProConnex 1901 EMT One-Hole Strap 1/2-Inch, 100-Pack, 1/2 Inch, Gray, 100 Count --- ## 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.pl/products/17836261-proconnex-emt-set-screw-coupling-1-2-50-pack](https://www.desertcart.pl/products/17836261-proconnex-emt-set-screw-coupling-1-2-50-pack) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-26*