EMT set screw coupling · 1/2 Inch Steel Coupling · .5EMTCS
1/2 in EMT set screw coupling for joining two lengths of EMT conduit in dry locations. Typically steel or zinc-plated steel construction; concrete-tight performance may require taping depending on listing and installation method.
What this product is for
This 1/2 in EMT set screw coupling is used to join two lengths of EMT conduit in raceway systems. It is a common fitting for commercial, industrial, and light residential electrical work where EMT is being extended or repaired.
Use for
Use for 1/2 in EMT conduit runs, service work, tenant improvements, and branch circuit raceways in dry locations. Typical trade use is where a straightforward mechanical connection is needed without a compression-style fitting.
Avoid for
Avoid using this fitting where the installation requires a listed raintight connection, direct burial, or a fitting type not permitted by local code. If concrete-tight performance is required, verify the exact listing because some set screw couplings are concrete-tight only when taped.
Best for
Best for electricians and contractors looking for a standard 1/2 in trade size EMT coupling for dry-location conduit runs. This style is commonly chosen for indoor commercial work where speed of installation matters.
Installed in
Typically installed in commercial buildings, industrial spaces, retail fit-ups, schools, and utility rooms. Fits 1/2 in EMT, approximately 16 mm trade size.
Why this product exists
Set screw couplings provide a practical way to connect EMT sections while maintaining mechanical continuity of the raceway. As a rule of thumb, 1/2 in EMT is commonly used on branch circuits, and conduit fill must still be checked against code requirements and conductor count.
Actual performance depends on installation conditions, conductor fill, layout, and local electrical code.
Compared with similar products
Compared with compression couplings, set screw couplings are typically faster to install and commonly used in dry indoor locations. Compression fittings are often selected where a tighter environmental seal is needed. Material and finish can vary by manufacturer, with common options including steel, zinc-plated steel, or zinc die cast.
Specifications
- Product type: EMT set screw coupling
- Trade size: 1/2 in (approximately 16 mm)
- Application: Join two lengths of EMT conduit
- Connection type: Set screw
- Typical material: Steel or zinc-plated steel
- Typical location: Dry locations
- Standards: Verify exact UL or CSA listing by manufacturer part number before submittal
- ApplicationJoin two lengths of EMT conduit
- Trade Size1/2 in (approximately 16 mm)
- StandardsVerify exact UL or CSA listing by manufacturer part number before submittal
- Connection TypeSet screw
- Typical MaterialSteel or zinc-plated steel
- Typical LocationDry locations
- BrandsWhite Label
- Stock in Elmira115
- Stock in Flesherton330
Aptico Supply Delivery
Fast Electrical Supply Delivery Across Ontario
Local delivery routes, pickup options, and contractor-focused service from our Elmira and Flesherton locations.

Delivery Built Around Electrical Contractors
Aptico Supply helps electricians, contractors, and commercial buyers get the electrical materials they need without unnecessary delays. Whether you are ordering for a jobsite, restocking service inventory, or arranging pickup, our delivery options are designed to keep work moving.
Free Daily Delivery
Free daily delivery is available for larger contractor accounts.
- Order by 9:00 AM for morning delivery
- Order by 2:00 PM for afternoon delivery
- Available in qualifying local delivery areas
Free Weekly Delivery
Free weekly delivery is available for smaller accounts in select service areas.
- Elmira area delivery: Tuesday
- Flesherton area delivery: Thursday
- Order by 11:00 AM on the route day
Pickup Options
Pickup is available from our Ontario locations for customers who prefer to collect their order directly.
- Elmira pickup available
- Flesherton pickup available
- Call ahead for large or special-order items
Local Delivery Areas
See our local delivery coverage below. Delivery charges may apply outside regular route areas or for oversized items.
Delivery Questions
Do you offer free delivery?
Yes, free delivery is available for qualifying contractor accounts and selected local delivery routes.
Can I pick up my order?
Yes, pickup is available from our Elmira and Flesherton locations.
Do delivery charges apply?
Delivery charges may apply outside regular local routes, for smaller orders, or for oversized and heavy items.
Can you deliver to jobsites?
Yes, jobsite delivery may be available depending on the order size, location, and delivery schedule.
Need Electrical Supplies Delivered?
Contact Aptico Supply to confirm your delivery options, pickup availability, or contractor account eligibility.
Contact Aptico SupplyWe accept the following payment methods:
To replace this text with your store's actual info on payment methods, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Payment methods page.
This page is intended for your policy regarding returns and refunds.
Here you can provide information as to what products can be returned, how many days your customers have to return their purchase, whether they will receive a refund in the original form of payment, a replacement or a store credit, who pays for the shipping of the previously purchased products to the store, and so on.
To replace this text with your store's actual return policy, go to "Design -> Menus & Pages -> Product Page Tabs" and edit the Return Policy page.



