Gardner Bender 1/2-in Knockout Seal

Gardner Bender 1/2-in Knockout Seal Features:

• Fast and easy to install from inside or outside of box.
• Embossed for quick self-centering in unused knockouts.
• One screw holds seal in place.
• Made of rust-proofed, cold-rolled galvanized steel.
• Screw and bar are zinc-plated.
• Marked for size and catalog number for easy installation.
• Box of 100.
• 16-gauge steel; 3/8-in thread.
• Dimensions: 6-in (L) x 3.5-in (W) x 4.5-in (H).