Commercial Electric's Speed-Snap Snap-in Clamp Connectors are used to quickly and easily connect non-metallic (NM) sheathed cable to a knockout in a box or enclosure. To install, simply push to snap-in. No locknut or tools required-saving time and effort during install and maintenance. Compact design is ideal for applications where space is limited, and, once snapped in place, the spring steel clip provides a secure and reliable connection. All steel construction ensures mechanical protection for the raceway. Zinc-electroplated for added corrosion protection.