Threaded Hole Plugs
Close off unused threaded holes in enclosures and outlet boxes.
Hole plugs rated IP54 protect against dust and splashing water.
For technical drawings and 3-D models, click on a part number.
| Pipe Size  | Thread Size | Thread Pitch, mm | Head Dia. | Material | Environmental Rating | Specifications Met | Each | |
NPT | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2 | __ | __ | 3/4" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 00000 |
| 3/4 | __ | __ | 1" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 0000 |
| 1 | __ | __ | 1 1/4" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 0000 |
| 1 1/2 | __ | __ | 1 3/4" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 00000 |
| 1 1/4 | __ | __ | 1 1/2" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 0000 |
| 2 | __ | __ | 2 1/4" | Aluminum | __ | CSA Certified, UL Listed, UL 1203, UL 886 | 0000000 | 00000 |
PG | ||||||||
| __ | PG-7 | __ | 9/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | PG-9 | __ | 11/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | PG-11 | __ | 13/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | PG-16 | __ | 15/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | PG-21 | __ | 1 3/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | PG-29 | __ | 1 9/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 00000 |
Metric | ||||||||
| __ | M12 | 1.5 | 9/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | M16 | 1.5 | 11/16" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | M20 | 1.5 | 7/8" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
| __ | M25 | 1.5 | 1 1/8" | Nickel-Plated Brass | IP54 | CSA Certified, UL Listed | 0000000 | 0000 |
Snap-In Hole Plugs
Seal unused holes and knockouts in enclosures and outlet boxes.
For technical drawings and 3-D models, click on a part number.
For Knockout | ||||||||
|---|---|---|---|---|---|---|---|---|
| Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Environment | Material | Pkg. Qty. | Pkg. | |
Hole Plugs | ||||||||
| 1/2 | 7/8" | 1 1/16" | 1/8" | Indoor Only | Steel | 25 | 0000000 | 00000 |
| 3/4 | 1 1/8" | 1 1/4" | 1/8" | Indoor Only | Steel | 25 | 0000000 | 00000 |
| 1 | 1 3/8" | 1 1/2" | 1/8" | Indoor Only | Steel | 25 | 0000000 | 00000 |
| 1 1/4 | 1 3/4" | 1 13/16" | 1/8" | Indoor Only | Steel | 25 | 0000000 | 00000 |
| 1 1/2 | 2" | 2 3/16" | 1/8" | Indoor Only | Steel | 25 | 0000000 | 00000 |
| 2 | 2 1/2" | 2 11/16" | 1/8" | Indoor Only | Steel | 10 | 0000000 | 00000 |
Self-Centering Hole Plugs
A circular groove quickly centers plugs in unused holes and knockouts.
For technical drawings and 3-D models, click on a part number.
For Knockout | |||||||
|---|---|---|---|---|---|---|---|
| Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Environment | Material | Each | |
| 1/2 | 7/8" | 1 1/8" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 00000 |
| 3/4 | 1 1/8" | 1 3/8" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 1 | 1 3/8" | 1 5/8" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 1 1/4 | 1 3/4" | 2 1/16" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 1 1/2 | 2" | 2 7/16" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 2 | 2 7/16" | 2 15/16" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 2 1/2 | 2 15/16" | 3 3/4" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 3 | 3 9/16" | 4 1/2" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 3 1/2 | 3 3/4" | 5" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 0000 |
| 4 | 4 5/8" | 5 1/2" | 1/16" | Indoor Only | Zinc-Plated Steel | 00000000 | 00000 |
Threaded Submersible Hole Plugs
Close off unused threaded holes to prevent water from entering your enclosures and outlet boxes. Plugs are rated IP68 for protection from water submersion.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Thread Size | Thread Pitch, mm | Head Dia. | Material | Environmental Rating | Specifications Met | Color | Each | |
NPT | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/2 | __ | __ | 1" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 00000000 | 00000 |
| 3/4 | __ | __ | 1 5/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 0000 |
| 1 | __ | __ | 1 3/4" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 0000 |
| 1 1/4 | __ | __ | 2 1/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 0000 |
PG | |||||||||
| __ | PG-7 | __ | 5/8" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 00000000 | 000 |
| __ | PG-9 | __ | 13/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 000 |
| __ | PG-21 | __ | 1 5/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 0000 |
| __ | PG-29 | __ | 1 3/4" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 0000 |
Metric | |||||||||
| __ | M12 | 1.5 | 5/8" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 000 |
| __ | M16 | 1.5 | 13/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 000 |
| __ | M20 | 1.5 | 1" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 000 |
| __ | M25 | 1.5 | 1 5/16" | Nylon Plastic | NEMA 4X; IP68 | UL 94 V-2 | Gray | 0000000 | 000 |
Submersible Hole Plugs
Prevent water from entering unused knockouts and holes in enclosures and outlet boxes. Plugs are rated NEMA 6P as well as IP66 and IP68 for protection from washdowns, corrosion, and water submersion. NEMA 12 rated plugs also protect against oily environments.
For technical drawings and 3-D models, click on a part number.
For Knockout | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Environmental Rating | Material | Specifications Met | Color | Each | |
| __ | 1/2"-13/16" | 1" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 000000 |
| 1/2 | 7/8" | 1 3/16" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 1/2, 3/4 | 7/8"-1 9/32" | 1 1/2" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 1, 1 1/4 | 1 3/8"-1 3/4" | 2" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 1 1/2, 2 | 2"-2 9/16" | 2 3/4" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 2 1/2 | 3" | 3 3/8" | 1/4" | NEMA 6P; NEMA 12; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 3 | 3 5/8" | 4" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 3 1/2 | 4 1/8" | 4 1/2" | 1/4" | NEMA 6P; NEMA 12; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
| 4 | 4 5/8" | 5" | 1/4" | NEMA 6P; IP66; IP68 | Fiberglass | UL Listed, UL 94 V-0 | Gray | 0000000 | 00000 |
Washdown Hole Plugs
Use these plugs in areas subject to high-pressure cleaning. They are rated NEMA 4 and 13 for protection from dirt, washdowns, and oil/coolant spraying. A gasket provides a tight seal in unused knockouts and conduit openings.
For technical drawings and 3-D models, click on a part number.
For Knockout | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Environmental Rating | Material | Specifications Met | Color | Each | |
| 1/2 | 7/8" | 1 3/8" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 000000 |
| 3/4 | 1 1/16" | 1 9/16" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 1 | 1 3/8" | 1 7/8" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 1 1/4 | 1 11/16" | 2 3/16" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 1 1/2 | 2" | 2 1/2" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 2 | 2 1/2" | 3" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 2 1/2 | 3" | 3 1/2" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 3 | 3 5/8" | 4 1/8" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
| 4 | 4 5/8" | 5 1/8" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
Washdown Hole Plugs for Push-Button Holes
Use these plugs in areas subject to high-pressure cleaning. They are rated NEMA 4 and 13 for protection from dirt, washdowns, and oil/coolant spraying. A gasket provides a tight seal in unused push-button holes.
For technical drawings and 3-D models, click on a part number.
| For Push-Button Hole Size, mm | For Hole Dia. | Head Dia. | For Max. Panel Thick. | Environmental Rating | Material | Specifications Met | Color | Each | |
| 22 | 7/8" | 1 1/4" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 000000 |
| 30 | 1 1/4" | 1 3/4" | 0.31" | IP66, NEMA 4, NEMA 13 | Powder-Coated Steel | UL Recognized Component, CSA Certified, UL 508A | Gray | 0000000 | 00000 |
Corrosion-Resistant Washdown Hole Plugs
A step above standard washdown hole plugs, these plugs are best suited for environments subject to high-pressure cleaning and corrosive liquids. They are rated NEMA 4X and 13 for protection from dirt, washdowns, corrosion, and oil/coolant spraying. A gasket provides a tight seal in unused knockouts and conduit openings.
For technical drawings and 3-D models, click on a part number.
For Knockout | ||||||||
|---|---|---|---|---|---|---|---|---|
| Trade Size | Dia. | Head Dia. | For Max. Panel Thick. | Material | Environmental Rating | Specifications Met | Each | |
| 1/2 | 7/8" | 1 3/8" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 000000 |
| 3/4 | 1 1/16" | 1 9/16" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
| 1 | 1 3/8" | 1 7/8" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
| 1 1/4 | 1 11/16" | 2 3/16" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
| 1 1/2 | 2" | 2 1/2" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
| 2 | 2 1/2" | 3" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
| 2 1/2 | 3" | 3 1/2" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 000000 |
| 3 | 3 5/8" | 4 1/8" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 000000 |
| 4 | 4 5/8" | 5 1/8" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 000000 |
Corrosion-Resistant Washdown Hole Plugs for Push-Button Holes
A step above standard washdown hole plugs, these plugs are best suited for environments subject to high-pressure cleaning and corrosive liquids. They are rated NEMA 4X and 13 for protection from dirt, washdowns, corrosion, and oil/coolant spraying. A gasket provides a tight seal in unused push-button holes.
For technical drawings and 3-D models, click on a part number.
| For Push-Button Hole Size, mm | For Hole Dia. | Head Dia. | For Max. Panel Thick. | Material | Environmental Rating | Specifications Met | Each | |
| 22 | 7/8" | 1 1/4" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 000000 |
| 30 | 1 1/4" | 1 3/4" | 0.31" | Stainless Steel | IP66, NEMA 4X, NEMA 13 | UL Recognized Component, CSA Certified, UL 508A | 0000000 | 00000 |
Corrosion-Resistant Washdown Hole Plugs for Square Holes
Close 2" square holes in the floor of your enclosure with these adhesive plugs. Press them over the hole to stick them in place—the adhesive reaches full strength after 72 hours. Rated IP56, NEMA 12, and NEMA 4X, these plugs seal out dust, dirt, and water. Made of polycarbonate plastic, they withstand corrosive chemicals and wet environments. Plugs meet American and Canadian safety requirements.
For technical drawings and 3-D models, click on a part number.
For Hole | Head | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Length | Width | Length | Width | For Maximum Panel Thickness | Environmental Rating | Specifications Met | Material | Each | |
| 2" | 2" | 3" | 3" | 0.19" | IP56, NEMA 4X, NEMA 12 | UL Recognized Component, C-UL Recognized Component | Polycarbonate Plastic | 0000000 | 00000 |
Sanitary Threaded Hole Plugs
FDA compliant for use near food, these plugs close off unused holes in equipment such as electrical enclosures to keep out debris and water. They have a smooth finish and round edges, leaving no crevices for contaminants to collect in. Made of 316L stainless steel, they won’t corrode from harsh cleaners. A silicone seal blocks out dust and liquid.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Head Diameter, mm | Material | Seal Material | Environmental Rating | Specifications Met | Features | Each | |
Metric | |||||||||
| M10 | 1.5 | 19.7 | 316L Stainless Steel | Silicone Rubber | IP66 | FDA Compliant 21 CFR 177.2600 | Round Edges, Smooth Finish | 00000000 | 00000 |