BX Flex Conduit Fitting, Set Screw Type - Kaiphone Technology Co., Ltd.
Halex Part # 62180B - Halex 3/8 In. Standard Fitting Flexible Metal Conduit (Fmc) 1-Hole Straps (200-Pack) - Armored Cable Conduit Fittings - Home Depot Pro
Sigma ProConnex 3/4-in Electrical (EMT) Zinc-plated Steel Compression Connector Conduit Fittings (5-Pack) in the Conduit Fittings department at Lowes.com