Material Material | Show |
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System of Measurement System of Measurement |
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For OD For OD |
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Thread Size Thread Size |
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Profile Profile |
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Inside Height Inside Height |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Maximum Temperature Maximum Temperature |
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For Connection Type For Connection Type |
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Specifications Met Specifications Met |
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Plug Type Plug Type |
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![]() | Push In |
Flexibility Flexibility |
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For Wall Thickness For Wall Thickness |
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Metal Round Caps

More durable than plastic caps, these provide the most protection from abrasion and impact.
Aluminum caps have good corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Aluminum | ||||
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| For OD | For Pipe Size | Inside Ht. | Each | |
Caps | ||||
| 1" | __ | 23/32" | 00000000 | 00000 |
| 1 1/4" | __ | 3/4" | 00000000 | 0000 |
| 1 1/2" | __ | 21/32" | 00000000 | 0000 |
| 2" | __ | 1 7/32" | 00000000 | 0000 |
| 2 1/4" | __ | 1 1/16" | 00000000 | 0000 |
| 2 1/2" | __ | 1 5/16" | 00000000 | 0000 |
| 3" | __ | 1 1/8" | 00000000 | 0000 |
Caps for Unthreaded Pipe | ||||
| 35/64" | 1/4 | 7/16" | 00000000 | 0000 |
| 43/64" | 3/8 | 9/16" | 00000000 | 0000 |
| 27/32" | 1/2 | 7/16" | 00000000 | 0000 |
| 1 3/64" | 3/4 | 5/8" | 00000000 | 0000 |
| 1 5/16" | 1 | 11/16" | 00000000 | 0000 |
| 1 21/32" | 1 1/4 | 13/16" | 00000000 | 0000 |
| 1 29/32" | 1 1/2 | 15/16" | 0000000 | 0000 |
| 2 3/8" | 2 | 1 1/16" | 0000000 | 0000 |
| 2 7/8" | 2 1/2 | 1 3/8" | 0000000 | 0000 |
| 3 1/2" | 3 | 1 3/8" | 0000000 | 00000 |
| 4" | 3 1/2 | 1 1/2" | 0000000 | 00000 |
| 4 1/2" | 4 | 1 7/8" | 0000000 | 00000 |
| 5 9/16" | 5 | 1 7/8" | 00000000 | 00000 |
| 6 5/8" | 6 | 1 7/8" | 0000000 | 00000 |
Threaded Caps

Protect externally threaded components from contaminants during fabrication and storage.
Aluminum caps withstand temperatures up to 650° F, which is more than four times as high as plastic caps. They are also more abrasion resistant. All meet military specification MIL-C-5501/3 for dust and moisture protection.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
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| Size | Type | For OD | Inside Ht. | Max. Temp., °F | Specifications Met | Pkg. Qty. | Pkg. | |
Aluminum | ||||||||
For Straight-Thread Pipe | ||||||||
| 5/16"-24 | UNF | 5/16" | 21/64" | 650° | MIL-C-5501/3 | 50 | 0000000 | 000000 |
| 3/8"-24 | UNF | 3/8" | 19/64" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
| 7/16"-20 | UNF | 7/16" | 15/32" | 650° | MIL-C-5501/3 | 50 | 0000000 | 0000 |
| 1/2"-20 | UNF | 1/2" | 7/16" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
| 9/16"-18 | UNF | 9/16" | 15/32" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
| 5/8"-18 | UNF | 5/8" | 33/64" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
| 3/4"-16 | UNF | 3/4" | 35/64" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
| 7/8"-14 | UNF | 7/8" | 21/32" | 650° | MIL-C-5501/3 | 50 | 0000000 | 00000 |
For UN Straight-Thread Pipe | ||||||||
| 1 1/16"-12 | UN | 1 1/16" | 49/64" | 650° | MIL-C-5501/3 | 25 | 0000000 | 00000 |
| 1 5/16"-12 | UN | 1 5/16" | 49/64" | 650° | MIL-C-5501/3 | 25 | 0000000 | 00000 |
| 1 5/8"-12 | UN | 1 5/8" | 23/32" | 650° | MIL-C-5501/3 | 10 | 0000000 | 00000 |
Threaded Standoff Caps

Give open-ended standoffs a finished look and protect them from dirt and debris.
Aluminum caps have good corrosion resistance, are lightweight, and are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
Metal Square Plugs

More durable than plastic plugs, these provide the most protection from abrasion and impact. Use them to eliminate sharp edges and create a finished look on metal fence and machine-guard posts. Drive them in place with a hammer for a secure fit.
For technical drawings and 3-D models, click on a part number.




























