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Home Electrical Rough Electrical Electrical Fittings EMT Metal Conduit Fittings 644S EMT COUPLING 1-1/4IN STEEL

644S EMT COUPLING 1-1/4IN STEEL

PART 710121
SUPPLIER SOUTHWIRE COMPANY, LLC
SUPPLIER PART # 644S
RANK D
SHELF PACK 25
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About this item

Topaz Electric 644S EMT Set Screw Coupling, Steel, 1-1/4 inch:

Specifications

  • Model Number: 644S
  • Trade Size: 1-1/4 inch
  • Material: Zinc-plated steel
  • Length: 3.25 inches
  • Diameter: 1.69 inches
  • Connection Type: Set screw
  • Certifications:
    • UL Listed (UL 514B)
    • CSA Certified
    • NEMA FB-1 Compliant
    • Federal Specification: W-F-408E 

Key Features

  • Set Screw Design: Secures two lengths of EMT conduit without threading.
  • Steel Construction: Durable and corrosion-resistant with zinc plating.
  • Concrete-Tight When Taped: Suitable for embedment in concrete.
  • Versatile Screw Heads: Compatible with slotted, Phillips, and Robertson drivers.
  • Rigid/EMT Compatibility: Works with both EMT and rigid conduit types 

Applications

  • Joining EMT conduit sections in electrical raceways.
  • Dry and concrete-tight installations in residential, commercial, and industrial settings.
  • Indoor conduit runs where secure mechanical connection is needed.
  • Retrofits and upgrades requiring quick, tool-based assembly.

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Diameter 1-1/4 Inch
Finish Plated Zinc
Brand Topaz Electric
Color Silver
25 1
Connection Type Set Screw
Length 3.25 in
Material Steel
NEMA Rating FB1-2014
Trade Size 1-1/4 in
Type Concrete Tight
Width 1.69 in
UPC Code 751338232303
Shelf Pack 25
Minimum Order Qty 1
Supplier Name SOUTHWIRE COMPANY
Supplier Short Name Topaz Lig.
Supplier Address 1 925 Waverly Avenue
Supplier City 1 Southwire Drive Carrollton
Supplier State GA
Supplier Zip 30119
Country US
Supplier Email hardwarecustomerservice@southwire.com
Supplier Url www.southwire.com
Buyer Name Michael Heck
Supplier Phone 404-620-7823
Supplier Fax 770-832-4491
Our Customer Id 50076
Return Policy Call Factory for RGA
Product Lines Electrical
Rep Name Bennett Limbaugh
Rep Address 5690 Watermelon Rd Ste 600 Northport, AL 35473
Rep Phone 888-603-6858
Rep Cell 888-603-6858
Rep Fax 800-690-7996
Rep Email scollins@salesgroupsouth.com
Rep Agency Davenport and Associates