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3" EMT Set Screw Coupling
Features
- Hex head screws 2 1/2" thru 4"
- Heavy steel walls
- Concrete tight when taped
- Pre-set and staked tri-head screws 1/2" thru 2"
Manufacturer Resources
Product Specs
- Department:
- Electrical
Allied Tube & Conduit SK300RKON – Frequently Asked Questions
1) Will the Allied Tube & Conduit SK300RKON couple two pieces of 3 inch EMT?
That's exactly what it's built for. The SK300RKON is a 3 inch EMT set screw coupling, so it joins two runs of 3 inch electrical metallic tubing. It is not for rigid or IMC thread, and it is sized only for 3 inch EMT, so a different trade size of tubing needs the matching coupling for that size.
2) Can a set screw EMT coupling be used in a concrete pour?
The SK300RKON coupling is concrete tight when taped. Tape the joint before the pour and it qualifies as concrete tight; untaped, it does not. For wet or damp locations, a raintight compression coupling is the usual call instead.
3) Set screw or compression coupling for a 3 inch EMT run?
Set screw, like the SK300RKON, is the standard choice for dry interior work and for concrete when the joint is taped. Compression couplings are what you use where the raceway needs to be raintight or in damp and wet locations. Set screw is faster to install and cheaper to stock; compression buys you the wet location rating.
4) Is this coupling heavy enough for a commercial or industrial raceway?
It is built with heavy steel walls, which is what keeps a 3 inch coupling from deforming when the screws are torqued down on a large run. That construction is aimed at commercial and industrial EMT work rather than light residential raceway.
5) What part number do I order for the 3 inch Allied set screw coupling?
Order Atkore Allied Tube & Conduit SK300RKON. That is the manufacturer part number for the 3 inch EMT set screw coupling, and it is the number to quote to a distributor so you don't end up with a 2-1/2 inch or 4 inch body.
How fast can I get the Allied Tube & Conduit SK300RKON 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 Allied Tube & Conduit SK300RKON come with a warranty?
Absolutely. The Allied Tube & Conduit SK300RKON 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 Allied Tube & Conduit SK300RKON?
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 Allied Tube & Conduit SK300RKON from ZenSupply?
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and
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