Check the listing for details. Sandbaggy 1" Coil Rod Coupler - Round Threaded Coupling Nuts. Condition: New. Listed at 26.00 USD. Threaded Connector for Coil Rods and Inside Tie Rods Enhance the versatility of your coil rods with our 1" Coil Rod Couplers (also known as coupling nuts). Constructed with durable high-strength steel with a black oxide finish, these couplers are able to withstand harsh conditions, offer resistance to corrosion and abrasions, and maximize the load capacity of your rods. Featuring coil threads meticulously tapped from each end, these threaded rod connectors ensure a secure and precise connection with both inside tie rods and coil rods, complete with a positive stop at the center for optimal alignment. These couplers offer a safe working load of 38,000 lbs. (2:1 safety factor), ensuring dependable and efficient performance for all your projects. Sandbaggy carries a variety of concrete forming supplies. Features Compatible with Inside Tie Rod and Coil Rods: Rods can be threaded into the coupler until they reach a positive stop at the center. Coil Threads Tapped from Each End, creating a secure stop at the center in order to develop the rated load and ensure precise alignment. Construction-Grade Strength: Crafted from high-strength steel, these couplers are engineered to develop the ultimate load capacity of your rods, ensuring a reliable connection that won't fail under pressure. Safe For Heavy Duty Jobs: Safe working load of 38,000 lbs. Provides a safety factor of approximately 2 to 1. Clean Threads for easy installation of rods. FAQ Why would you use a rod coupler? A rod coupler, also known as a threaded rod coupler or extension nut, is used to connect two threaded rods together. This allows you to extend the length of a threaded rod. What is a coil rod used for? Coil rods are a type of threaded rod that is formed into a coil for easy storage and transportation. It is commonly used in concrete construction. What is a coupling nut? A coupling nut, also known as an extension nut, is a threaded fastener used to join two male threads, most commonly threaded rods.