- Stock 93
Beam Clamp · 1 in flange opening 1/4-20 thread steel · Topaz 122S
Steel beam clamp for attaching conduit, cable supports, or light threaded hardware to structural steel. This 1/4-20 threaded clamp fits approximately 11/16 in to 1 in beam flange applications depending on listing source; confirm jaw opening and load requirements before ordering.
What this product is for
This steel beam clamp provides a threaded attachment point on structural steel for electrical supports, hangers, and related hardware. It is commonly used where drilling or welding to the beam is not preferred.
Use for
Use for fastening support hardware to beam flanges in commercial and industrial electrical work, including conduit support, cable support, and light threaded rod or fixture attachment where a 1/4-20 connection is required.
Avoid for
Avoid using this clamp where the beam flange exceeds the listed jaw capacity, where corrosion resistance beyond standard steel finish is required, or where engineered seismic, overhead lifting, or unsupported load applications call for a specifically rated support product.
Best for
Best for electricians and contractors who need a compact beam attachment with a common 1/4-20 thread for branch conduit, cable routing, or support accessories on structural steel.
Installed in
Typically installed in commercial buildings, industrial facilities, service spaces, and retrofit projects with exposed structural steel.
Why this product exists
Beam clamps speed installation by creating a mechanical attachment point on steel without field drilling. This helps reduce installation time and preserves the beam surface in many common support applications.
Compared with similar products
Compared with larger beam clamps, this style is suited to smaller support points using 1/4-20 hardware. Typical trade selection is based on beam flange thickness, thread size, finish, and published load data. Actual performance depends on installation conditions, hardware used, and local electrical code.
Specifications
- Product type: Beam clamp
- Manufacturer part number: 122S
- Brand: Topaz
- Material: Steel
- Thread size: 1/4-20
- Beam size reference: 1 in nominal listing
- Jaw opening: approximately 11/16 in to 1 in (17 to 25 mm) depending on source listing
- Application: Attachment to structural steel for electrical support hardware
- Installation note: Verify flange fit, thread compatibility, and published load rating for the intended support assembly
- ApplicationAttachment to structural steel for electrical support hardware
- MaterialSteel
- Installation NoteVerify flange fit, thread compatibility, and published load rating for the
- Thread Size37001
- Jaw Openingapproximately 11/16 in to 1 in (17 to 25 mm) depending on source listing
- BrandsNesco
- Stock in Elmira13
- Stock in Flesherton23
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.
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