Halex/scott Fetzer 20570 3/8 Inch Clamp Connector 5 Pack

Product Description

The HALEX/SCOTT FETZER 20570 is a clamp type connector designed for use with armored cable (AC) and flexible metal conduit (FMC) in a 3/8 inch trade size. Constructed from die cast zinc, this connector provides a secure mechanical termination where conduit or armored cable enters a steel enclosure, junction box, or panel. It installs through a 1/2 inch knockout and uses a clamp-style fastening method to grip the conduit or cable without threading. Electricians reach for this connector on commercial and residential rough-in work wherever flexible conduit or armored cable terminates at a box or enclosure. Each package contains 5 connectors.

This connector is suited for residential and light commercial electrical installations where 3/8 inch armored cable or flexible metal conduit must be secured to an enclosure. Common applications include motor connections, HVAC equipment wiring, and branch circuit terminations that require a short, flexible section of conduit or AC cable. The 1/2 inch knockout entry is standard on most steel electrical boxes, making this a high-frequency stock item for electricians working across a range of panel and box types.

Key Features

• Die cast zinc construction for durability and corrosion resistance in typical indoor applications
• Clamp-type design secures 3/8 inch armored cable or flexible metal conduit without threading
• Fits standard 1/2 inch knockouts found on most steel electrical enclosures and junction boxes
• 3/8 inch trade size accommodates common AC and FMC runs in commercial and residential work
• 5-piece pack reduces trip frequency on jobs requiring multiple terminations

Compatibility

Designed for use with 3/8 inch trade size armored cable (AC) and flexible metal conduit (FMC), terminating into enclosures with a 1/2 inch knockout opening.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit and verify the absence of voltage before working inside any enclosure. Insert the connector through the 1/2 inch knockout and secure the locknut firmly by hand, then tighten with a suitable punch or locknut wrench to ensure a solid mechanical and electrical bond. Do not over-torque the clamp screw, as die cast zinc fittings can crack under excessive force.