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Galvanized Rigid Conduit (GRC) Couplings | Threaded Steel | UL Listed
$35.00
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Galvanized Rigid Conduit (GRC) Couplings | Threaded Steel | UL Listed
Galvanized Rigid Conduit (GRC) Couplings provide a durable, corrosion-resistant connection between lengths of rigid steel conduit. Hot-dip galvanized inside and out, these couplings ensure a strong, threaded joint that maintains full electrical continuity and mechanical strength for power and communication systems.
Designed for easy installation and long-term reliability, each coupling features precision-cut threads that ensure a tight, vibration-resistant fit. The thick zinc coating offers excellent protection against moisture, chemicals, and harsh environments—making GRC couplings ideal for indoor, outdoor, and underground use.
Key Features
- Hot-Dip Galvanized Steel – Provides superior corrosion protection for long-lasting performance in demanding environments.
- Precision Threaded Ends – Ensures smooth assembly and secure mechanical and electrical connections.
- Heavy-Duty Construction – Built from rigid steel to maintain alignment and resist deformation during installation.
- Code-Compliant – Meets UL 6 and ANSI C80.1 standards for safety and electrical continuity.
- Wide Range of Sizes – Available from ½″ through 6″ trade sizes to support a variety of conduit systems.
Ordering Information
| Trade Size (in) | Metric Designator | Nominal OD (in) | Length (in) | Threads per Inch | Weight per 1000 (lbs) | Standard Package |
|---|---|---|---|---|---|---|
| ½ | 16 | 1.01 | 1.63 | 14 | 12 | 100 |
| ¾ | 21 | 1.25 | 1.63 | 14 | 18 | 50 |
| 1 | 27 | 1.53 | 1.97 | 11½ | 30 | 30 |
| 1¼ | 35 | 1.87 | 2.03 | 11½ | 37 | 25 |
| 1½ | 41 | 2.16 | 2.06 | 11½ | 43 | 25 |
| 2 | 53 | 2.65 | 2.13 | 11½ | 67 | 20 |
| 2½ | 63 | 3.25 | 3.19 | 9 | 170 | 16 |
| 3 | 78 | 3.87 | 3.31 | 8 | 210 | 16 |
| 3½ | 91 | 4.50 | 3.41 | 8 | 340 | 12 |
| 4 | 103 | 4.88 | 3.52 | 8 | 300 | 10 |
| 5 | 129 | 6.00 | 3.96 | 8 | 475 | 5 |
| 6 | 155 | 7.20 | 4.25 | 8 | 765 | 3 |