Galvanized RMC - 3-1/2 Inch Galvanized Coupling

Upgrade your electrical conduit system with our premium 3-1/2 Inch Galvanized Rigid Steel Conduit Coupling. Expertly engineered to join two lengths of Galvanized Rigid Conduit (GRC) or Intermediate Metal Conduit (IMC), this coupling delivers a robust, leak-proof connection for both indoor and outdoor installations. Constructed from high-quality steel and finished with a durable galvanized coating, it provides exceptional corrosion resistance in demanding environments.

Key Features & Benefits:

• Effortless Installation: Designed for easy assembly, reducing labor time and costs.
• Robust Construction: Made of steel with a galvanized finish to ensure long-lasting durability and superior corrosion resistance.
• Precision Threading: With 8 threads per inch, it offers a secure, stable connection, built to precise tolerances (±1 thread variation permitted).
• Versatile Use: Suitable for joining both GRC and IMC conduit in a variety of commercial, industrial, and residential applications.
• Standards Compliant: Meets stringent industry standards including UL, CSA, ANSI/NFPA 70 NEC 344, and NOM-001-SEDE for safety and performance.

Technical Specifications:

• Trade Size: 3-1/2 Inch
• Material: Steel
• Finish: Galvanized
• Threads per Inch: 8
• Length from End of Pipe to Hand-Tight Plane (L-1): 1.306 inches
• Effective Length (L-2): 1.25 inches
• Total Length of Threads to Vanish Point (L-4): 1.6837 inches
• Pitch Diameter at End of Thread (3/4" Taper per Ft.): 3.8375 inches
• Pitch Diameter at Hand Tight Plane (E-1): 3.9191 inches
• Length from Hand-Tight Plane to Face Coupling (M): 0.1902 inches
• Diameter of Countersink (Q): 4.0 inches
• Hand-Tight Standoff Basic Inches (A): 1-1/2 inches

Engineered for strength and reliability, our 3-1/2 Inch Galvanized RMC Coupling is the ideal solution for creating secure conduit connections that stand the test of time. Whether you're upgrading an existing system or embarking on a new installation, trust this coupling to deliver unmatched performance and ease of installation.

To access other sizes, click on the links in the product name column of the table below.

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