Crouse-Hinds 161 Malleable Iro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$7.43
Crouse-Hinds 161 Malleable Iron Set Screw Coupling, 3/4-Inch EMT

Crouse-Hinds 161 Malleable Iron Set Screw Coupling, 3/4-Inch EMT

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Model: CRS161

In Stock (leaves warehouse same day if ordered before 3pm ET)

$7.43
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Crouse-Hinds 161 Malleable Iron Set Screw Coupling, 3/4-Inch EMT

The Crouse-Hinds 161 Set Screw Coupling is a 3/4-Inch coupling built from malleable iron for joining sections of EMT (electrical metallic tubing) in commercial and industrial raceway systems. Designed for straight, in-line connections, this coupling secures conduit runs with a positive set-screw grip that resists loosening from vibration and thermal cycling. As a member of the Crouse-Hinds conduit fitting line, the 161 delivers dependable mechanical continuity for electrical installations that demand durable, code-compliant conduit connections. Electricians and contractors specify this coupling when extending or splicing EMT runs without the added cost and labor of a junction box, making it a practical solution for both new construction and renovation wiring projects.

Key Features

  • Trade Size: 3/4-Inch coupling sized for joining matching 3/4-Inch EMT conduit runs, ensuring a precise, snug fit between sections.
  • Durable Construction: Malleable iron body provides strength and long-term durability for demanding raceway installations exposed to mechanical stress.
  • Set-Screw Connection: Set-screw design allows fast, tool-based installation while maintaining a secure mechanical and electrical bond between conduit sections, resisting loosening from vibration and thermal cycling.
  • In-Line Coupling Configuration: Straight coupling design simplifies extending or splicing EMT conduit runs without the need for a junction box.
  • Conduit Coupling Product Type: Purpose-built as a conduit coupling for use within standard EMT raceway systems, matching the Crouse-Hinds line of conduit fittings.

Technical Specifications

  • Product Type: Conduit Coupling
  • Trade Size: 3/4-Inch
  • Material: Malleable Iron
  • Connection Type: Set Screw

Typical Applications

  • Commercial and Industrial Electrical Installations
  • EMT Conduit and Raceway Systems
  • Extending or Splicing Conduit Runs
  • New Construction and Renovation Wiring Projects

Why Crouse-Hinds?

Crouse-Hinds is a trusted name in electrical conduit fittings, and the 161 Set Screw Coupling reflects that reputation with a rugged malleable iron build and a set-screw connection engineered for reliable, secure conduit joints. Electrical contractors rely on Crouse-Hinds fittings like the 161 for consistent performance and durable construction across demanding EMT installations, making it a dependable choice for projects that require solid, code-compliant conduit connections built to last.

Manufacturer Resources

Product Specs

list_batch:
CRS-20260917
Product Type:
Conduit Coupling
Department:
Electrical
Product Subgroup:
Conduit Fittings
Product Material:
Malleable Iron
Product Size:
3/4"
Product Length:
2 in
Product Weight:
0.4 lb
Product Width:
1.56 in
Product Height:
1.56 in
Product Group:
Conduit & Raceway

Crouse-Hinds CRS161 – Frequently Asked Questions

1) Will the Crouse-Hinds 161 coupling work on 3/4-inch EMT?
Yes. The Crouse-Hinds 161 is sized for 3/4-inch trade size EMT (electrical metallic tubing) and joins two runs of 3/4-inch EMT in a straight, in-line connection. It will not adapt between trade sizes, and it is not a fitting for rigid or IMC threaded conduit or for flex.
2) Set screw or compression coupling for an EMT run, which should I use?
The 161 is a set screw coupling: the screws bite into the tubing wall for a mechanical and electrical bond, and it installs fast with just a screwdriver or driver bit. That is the normal choice for dry indoor commercial and industrial raceway. Where the raceway has to be raintight or is exposed to wet locations, a compression (gland nut) coupling is the fitting to specify instead, since a set screw connection is not raintight.
3) Do I need a junction box to splice two lengths of EMT?
Not for a straight splice. The 161 coupling joins two cut lengths of 3/4-inch EMT in line, so you can extend or repair a run without adding a box and without the labor that goes with it. A box is only needed where you are making a conductor splice, a pull point, or a change of direction.
4) Is the Crouse-Hinds 161 steel or die cast? I need something that holds up in an industrial space.
Malleable iron, not die cast zinc. That matters on exposed industrial raceway where a fitting can take a knock from equipment or material handling, and it is why the 161 gets specified for runs under mechanical stress rather than concealed residential work.
5) What part number do I order for the Crouse-Hinds 3/4-inch EMT set screw coupling?
Order Crouse-Hinds catalog number 161. That is the 3/4-inch malleable iron set screw EMT coupling, and the single number covers it, there is no finish or length option to pick.
6) Does the 161 coupling carry the ground, or do I need a separate bonding jumper?
The set screw joint on the 161 is made to maintain both a mechanical and an electrical bond between the two conduit sections, so a properly tightened coupling keeps continuity along the EMT raceway. Where your design or specification calls for an equipment grounding conductor to be pulled in the raceway anyway, the coupling does not replace it.
7) Will a set screw coupling loosen up over time on a run that vibrates?
The set screw grip on the 161 is intended to hold against vibration and thermal cycling, which is the usual concern on runs near motors, rooftop units, or anywhere the conduit expands and contracts with temperature. Tighten both screws firmly against the tubing wall so the joint keeps mechanical and electrical continuity.
How fast can I get the Crouse-Hinds CRS161 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Crouse-Hinds CRS161 come with a warranty?
Absolutely. The Crouse-Hinds CRS161 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Crouse-Hinds CRS161?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Crouse-Hinds CRS161 from ZenSupply?
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