L H Dottie Co USB Universal Plastic Stud Bushing

Product Description

The L H DOTTIE CO USB is a universal plastic stud bushing designed to protect wire and cable insulation where conductors pass through metal studs, knockouts, or drilled openings in electrical enclosures and framing. The bushing snaps into place and creates a smooth, non-abrasive edge that prevents insulation damage caused by sharp metal edges. This type of fitting is a standard requirement in residential and light commercial wiring installations and is typically installed by licensed electricians during rough-in work.

Plastic stud bushings are used wherever electrical conductors pass through metal framing members, junction boxes, or panel knockouts. They are commonly installed in metal-stud framing applications in commercial construction, as well as in residential settings where romex or other wiring passes through structural metal components. The universal design accommodates a range of opening sizes, reducing the need to stock multiple bushing sizes on a job site.

Key Features

• Universal fit design accommodates a range of standard knockout and stud openings
• Plastic construction provides a smooth, non-abrasive edge to protect wire and cable insulation
• Snap-in installation requires no special tools
• Sold individually, allowing purchase in exact quantities needed

Compatibility

Designed as an OEM-style replacement and general-use fitting for standard metal stud knockouts and drilled openings in electrical enclosures and framing assemblies.

Installation Notes

Installation is performed by licensed electricians as part of rough-in wiring work. De-energize all circuits in the work area before pulling wire through any bushing. Snap the bushing firmly into the knockout or opening before routing conductors to ensure full edge coverage. NEC requirements for conductor protection at penetrations should be referenced for applicable installation standards.