Metal knockout seals are fast and easy to install from inside or outside of box.
GB® Knockout Seal, Screw Mount, Steel, Galvanized, Additional Information: 16 ga Steel, 3/8 in L Thread, 4 in Dia
| Additional Information | : | 16 ga Steel, 3/8 in L Thread, 4 in Dia |
| Finish | : | Galvanized |
| Material | : | Steel |
| Mounting Type | : | Screw |
- 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