Bridgeport 802SP 3/8 IN Hinged Strap Snap-In 90 D, Box of 25
https://nsiindustries.com/product/e-z-locka-90-degree-ac-mc-connector-3-8-die-cast-zinc/
Use Bridgeport 90 degree fittings to connect flexible metal conduit or AC/MC cable to an electrical box or enclosure at a 90 degree angle. A single set screw and snap-in design saves you time and money on large projects.