Use the Bridgeport 642 1/2-Inch Two-Piece Zinc-Electroplated Steel Clamp-Type Connector with a 1/2-inch KO to connect Nonmetallic Cable 0.18 Inches to 0.56 Inches to box or enclosure without a locknut. The zinc-electroplated steel is rust and corrosion resistant and provides consistent alignment, centerlines and strong threads. With an overall width of 1-7/8 inches, the US-made solidly-built connector meets construction and general industry OSHA-recognized NRTL-listed electrical standards, NEMA Specification Standard FB-1 and meets the stringent bonding and grounding requirements of 514B cULus. Bridgeport builds every product with the same goal in mind: guaranteeing a fast, professional-grade, trouble-free installation. Our wide selection of products is manufactured for innovation, consistency and quality — providing you with connectors, couplings or transition fittings that are safety listed, ensuring code compliance to meet your needs and enable you to do your best work at a lower total cost. When you need a solution you can depend on, be sure to look for Bridgeport Orange.