

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The HALEX 20581 is a straight set screw, non-insulated connector designed to terminate armored cable, flexible metallic conduit (FMC), and non-metallic sheathed cable at junction boxes, panels, and enclosures. Constructed from die-cast zinc, the connector provides a durable, corrosion-resistant connection point rated for standard electrical installations. Each pack contains five connectors sized for 3/8 inch trade-size conduit and cable entries. UL listed for compliance with applicable electrical code requirements. Electricians and wire installers reach for this connector when securing flexible or armored runs to metal enclosures in both new construction and retrofit work.
The 20581 connector is suited for residential and light commercial electrical installations where armored cable or flexible metallic conduit transitions into a box or panel knockout. The 3/8 inch trade size fits the most common knockout diameter used in residential panel work and device boxes. The set screw securing method allows quick, tool-assisted termination without the need for specialized fittings or threading tools. These connectors are packaged in a five-pack quantity, making them practical for small jobs or stocking a service vehicle.
Designed for use with armored cable, flexible metallic conduit, and non-metallic sheathed cable at 3/8 inch trade-size knockouts in electrical boxes, panels, and enclosures.
Installation is performed by licensed electricians in accordance with the National Electrical Code (NEC). De-energize and lock out the circuit or panel before making any connections. Insert the cable or conduit end into the connector body and tighten the set screw with a flathead screwdriver until the fitting is secure against the sheathing. Verify the connector is fully seated in the knockout and that the locknut, if required by the enclosure type, is properly tightened.
Thanks for subscribing!
This email has been registered!