ELECTRICAL WIRING SUPPLIES AND ACCESSORIES THEREFOR-NAMELY,ENTRANCE FITTINGS FOR RIGID CONDUIT,SUCH AS ENTRANCE CAPS,ENTRANCE L'S, CAPPED ELBOWS AND END FITTINGS; RIGID CONDUIT FITTINGS, SUCH AS THREE-PIECE COUPLINGS, THREADLESS CONNECTORS, THREADLESS COUPLINGS, 90 BENDS, STRAPS, SPACERS, NIPPLES, LOCKNUTS, BUSHINGS, GROUNDING BUSHINGS, CAPPED BUSHINGS AND REDUCING BUSHINGS; REDUCING WASHERS; KNOCKOUT SEALS; COMBINATION COUPLINGS FOR COUPLING RIGID CONDUIT TO FLEXIBLE CONDUIT; BUSHING PENNIES; INSULATING BUSHINGS AND COVERS THEREFOR; FITTINGS FOR ELECTRICAL METALLIC TUBING, SUCH AS, CONNECTORS, COUPLINGS, 90 CONNECTORS, SPLIT ADAPTERS, ENTRANCE CAPS, COMBINATION COUPLINGS FOR COUPLING ELECTRICAL METALLIC TUBING TO FLEXIBLE CONDUIT, SPACERS, STRAPS, SET SCREW CONNECTORS, SET SCREW FITTINGS AND SET SCREW COUPLINGS; ELECTRICAL METALLIC TUBING BENDERS; CABLE CONNECTORS; ALL PURPOSE CONNECTORS ADAPTABLE FOR USE EITHER WITH NON-METALLIC, SERVICE ENTRANCE, AND ARMORED CABLES AND /OR FLEXIBLE CONDUIT, SUCH AS, STRAIGHT CLAMP CONNECTORS, DUPLEX SQUEEZE CONNECTORS AND 90 ANGLE CONNECTORS; CONNECTORS FOR ARMORED CABLE AND FLEXIBLE CONDUIT, SUCH AS, SET SCREW TYPE CONNECTORS, HINGE TYPE CONNECTORS, CLAMP TYPE CONNECTORS, SQUEEZE TYPE CONNECTORS, ANGLE CONNECTORS, DUPLEX SET SCREW CONNECTORS, DUPLEX SQUEEZE TYPE CONNECTORS, 45 AND 90 TWO-PIECE CONNECTORS AND 90 THREE-PIECE CONNECTORS; CLAMP CONNECTORS; STRAIGHT BOX CONNECTORS; CONNECTORS FOR NON-METALLIC AND ENTRANCE CABLES, SUCH AS, HINGE TYPE CONNECTORS, TWO SCREW TYPE CLAMP CONNECTORS, DUPLEX SQUEEZE TYPE CONNECTORS AND THREE-PIECE 90 CONNECTORS; SERVICE ENTRANCE CABLE FITTINGS, SUCH AS, HINGE TYPE CONNECTORS, TWO-SCREW TYPE CLAMP CONNECTORS, DUPLEX SQUEEZE TYPE CONNECTORS, THREE-PIECE 90 CONNECTORS, STRAPS, SILL PLATES, FLANGE TYPE ENTRANCE HEADS, ENTRANCE CAPS, MIDGET ENTRANCE CAPS AND WATERTIGHT CONNECTORS; U STRAPS; ARMORED CABLE CLIPS; STRAPS FOR ARMORED CABLE AND FLEXIBLE CONDUIT; STRAPS FOR NON-METALLIC CABLE; GROUND FITTINGS; GROUND FITTINGS FOR BARE GROUND WIRE; GROUND FITTINGS FOR BARE ARMORED GROUND WIRE AND GROUND FITTINGS FOR RIGID CONDUIT; GROUND STRAPS; FIXTURE FITTINGS, SUCH AS,WALL PLATES, FIXTURE STUDS, BOLTLESS TYPE STUDS, FIXTURE EXTENSIONS, FIXTURE NUTS, BOX COVERS AND OIL BURNER SWITCH PLATES; CONDUIT NIPPLES; CONDUIT ELBOWS; CONDUIT COUPLINGS AND GOOSE NECKS