Electrical Box Knockout Plugs, 1/2" Screw and Bar Electrical Hole Seal

Key features

• HEAVY-DUTY GALVANIZED STEEL – Built from durable galvanized steel with a protective zinc coating for excellent strength, corrosion resistance, and long-lasting performance. The embossed design adds rigidity while helping the knockout seal center securely over unused electrical box openings.
• SECURE SCREW & BAR DESIGN – The pre-assembled Type S screw and bar configuration provides a strong, dependable hold. Once tightened, the retaining bar firmly secures the knockout cover in place for a stable, vibration-resistant installation.
• FAST & EASY INSTALLATION – No complicated installation process required. Simply insert the retaining bar through the knockout hole, position the seal over the opening, and tighten the center screw for a secure fit. Ideal for new installations, repairs, retrofits, and maintenance work.
• FAST & EASY INSTALLATION – No complicated installation process required. Simply insert the retaining bar through the knockout hole, position the seal over the opening, and tighten the center screw for a secure fit. Ideal for new installations, repairs, retrofits, and maintenance work.
• AIRMONT PRODUCTS QUALITY – Airmont Products delivers dependable electrical supplies designed for professional performance and everyday reliability. Our knockout seals are engineered with durable materials, practical installation features, and consistent construction for electricians, contractors, maintenance professionals, and homeowners.

Free shipping included. 30-day hassle-free returns.