Thread Size Thread Size |
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For Connection Type For Connection Type |
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Drive Style Drive Style |
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 | External Hex |
 | External Square |
 | External 12-Point |
Height Height |
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Inside Height Inside Height |
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For OD For OD |
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Threaded Round Plugs for NPT Pipe
Protect internally threaded NPT connections from contaminants during fabrication and storage.
Install external square-drive plugs manually or with a square-drive wrench or socket.
Install external 12-point drive plugs manually or with a 12-point wrench or socket.
Install external hex-drive plugs manually or with a hex-drive wrench or socket.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Ht. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
External Square Drive | |||||||
|---|---|---|---|---|---|---|---|
Polyethylene Plastic | |||||||
| 1/8 | 7/16" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 1/4 | 1/2" | 160° | Durometer 65D | Red | 100 | 0000000 | 0000 |
| 3/8 | 1/2" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 1/2 | 19/32" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 3/4 | 5/8" | 160° | Durometer 65D | Red | 50 | 0000000 | 00000 |
| 1 | 23/32" | 160° | Durometer 65D | Red | 25 | 0000000 | 0000 |
| 1 1/4 | 3/4" | 160° | Durometer 65D | Red | 25 | 0000000 | 00000 |
| 1 1/2 | 31/32" | 160° | Durometer 65D | Red | 10 | 0000000 | 00000 |
External 12-Point Drive | |||||||
Polyethylene Plastic | |||||||
| 1/8 | 9/32" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 1/4 | 3/8" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 3/8 | 11/32" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 1/2 | 9/16" | 160° | Durometer 65D | Red | 100 | 0000000 | 00000 |
| 3/4 | 5/8" | 160° | Durometer 65D | Red | 50 | 0000000 | 00000 |
| 1 | 23/32" | 160° | Durometer 65D | Red | 5 | 0000000 | 0000 |
External Hex Drive | |||||||
Polyethylene Plastic | |||||||
| 2 | 1" | 160° | Durometer 65D | White | 3 | 0000000 | 0000 |
| 2 1/2 | 1 7/16" | 160° | Durometer 65D | White | 2 | 0000000 | 0000 |
| 3 | 1 7/16" | 160° | Durometer 65D | White | 1 | 0000000 | 0000 |
| 4 | 1 23/32" | 160° | Durometer 65D | White | 1 | 0000000 | 0000 |
High-Temperature Round Plugs for NPT Pipe
These plugs withstand temperatures up to 600° F to protect internally threaded NPT connections from contaminants during electroplating, paint baking, and powder coating applications. All have a tear-away nipple that allows pressure to release during curing. Install these plugs manually or with a square-drive wrench or socket.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Ht. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
External Square Drive | |||||||
|---|---|---|---|---|---|---|---|
Silicone Rubber | |||||||
| 1/2 | 19/32" | 600° | Durometer 55A | Pink | 10 | 0000000 | 000000 |
| 3/4 | 19/32" | 600° | Durometer 55A | Yellow | 10 | 0000000 | 00000 |
| 1 | 11/16" | 600° | Durometer 55A | Clear | 1 | 0000000 | 0000 |
| 1 1/4 | 3/4" | 600° | Durometer 55A | Green | 1 | 0000000 | 0000 |
| 1 1/2 | 23/32" | 600° | Durometer 55A | White | 1 | 0000000 | 0000 |
| 2 | 23/32" | 600° | Durometer 55A | Blue | 1 | 0000000 | 0000 |
Threaded Round Plugs for Straight-Thread Pipe
Seal tube and hose fittings to keep their straight threads protected from contaminants during fabrication and storage.
Polyethylene plugs resist chemicals better than aluminum plugs. Install them manually.
Nylon plugs resist chemicals better than aluminum plugs and are more wear resistant than polyethylene plugs. You can install them manually or with a hex-head wrench or socket.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Ht. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
| 7/16"-20 | 5/16" | 160° | Durometer 65D | Red | 50 | 0000000 | 00000 |
| 1/2"-20 | 5/16" | 160° | Durometer 65D | Red | 50 | 0000000 | 0000 |
| 9/16"-18 | 11/32" | 160° | Durometer 65D | Red | 50 | 0000000 | 0000 |
| 3/4"-16 | 13/32" | 160° | Durometer 65D | Red | 50 | 0000000 | 0000 |
| 7/8"-14 | 7/16" | 160° | Durometer 65D | Red | 50 | 0000000 | 0000 |
| 1 1/16"-12 | 5/8" | 160° | Durometer 65D | Red | 50 | 0000000 | 0000 |
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Ht., mm | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
| M10 | 1 | 7 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 000000 |
| M12 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 00000 |
| M14 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 00000 |
| M16 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 00000 |
| M18 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 50 | 0000000 | 00000 |
| M20 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 25 | 0000000 | 00000 |
| M22 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 25 | 0000000 | 00000 |
| M24 | 1.5 | 12 | 150° | Durometer 55D | Yellow | 25 | 0000000 | 00000 |
| M26 | 1.5 | 10 | 150° | Durometer 55D | Yellow | 10 | 0000000 | 00000 |
| M27 | 2 | 13 | 150° | Durometer 55D | Yellow | 10 | 0000000 | 00000 |
| M33 | 2 | 13 | 150° | Durometer 55D | Yellow | 10 | 0000000 | 00000 |
Threaded Round Plugs for BSPT Pipe
Safeguard internally threaded BSPT connections from contaminants during fabrication and storage.
Install external 12-point drive plugs manually or with a 12-point wrench or socket.
Install external hex-drive plugs manually or with a hex-drive wrench or socket.
Polypropylene plugs offer more wear resistance than nylon plugs.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Ht. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
External 12-Point Drive | |||||||
|---|---|---|---|---|---|---|---|
Polypropylene Plastic | |||||||
| 1/4 | 3/8" | 250° | Durometer 50R | Yellow | 10 | 0000000 | 00000 |
| 3/8 | 3/8" | 250° | Durometer 50R | Yellow | 10 | 0000000 | 0000 |
| 1/2 | 7/16" | 250° | Durometer 50R | Yellow | 10 | 0000000 | 0000 |
| 3/4 | 7/16" | 250° | Durometer 50R | Yellow | 10 | 0000000 | 0000 |
External Hex Drive | |||||||
Nylon Plastic | |||||||
| 1/4 | 11/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 0000 |
| 3/8 | 11/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 0000 |
| 1/2 | 15/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 0000 |
| 3/4 | 15/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 00000 |
| 1 | 19/32" | 245° | Durometer 54D | Yellow | 5 | 0000000 | 0000 |
Threaded Round Plugs for 37° Flared Tube
Designed to fit into 37° flared connections such as those found on JIC and SAE fittings, these plugs protect internally threaded connections from contaminants during fabrication and storage. Install them manually.
Polyethylene plugs resist chemicals better than aluminum plugs.
For technical drawings and 3-D models, click on a part number.
| Thread Size | For Tube OD | Ht. | Max. Temp., °F | Hardness | Color | Pkg. Qty. | Pkg. | |
Polyethylene Plastic | ||||||||
|---|---|---|---|---|---|---|---|---|
| 5/16"-24 | 1/8" | 13/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 3/8"-24 | 3/16" | 15/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 0000 |
| 7/16"-20 | 1/4" | 17/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 0000 |
| 1/2"-20 | 5/16" | 17/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 0000 |
| 9/16"-18 | 3/8" | 1/2" | 150° | Durometer 40D | Red | 100 | 0000000 | 0000 |
| 3/4"-16 | 1/2" | 3/4" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 7/8"-14 | 5/8" | 7/8" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 1 1/16"-12 | 3/4" | 7/8" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 1 5/16"-12 | 1" | 15/16" | 150° | Durometer 40D | Red | 50 | 0000000 | 0000 |
Threaded Caps
Protect externally threaded components from contaminants during fabrication and storage.
Plastic caps resist corrosion better than aluminum caps.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Type | Pipe Size | For OD | Inside Ht. | Max. Temp., °F | Color | Pkg. Qty. | Pkg. | |
Plastic | ||||||||||
For Straight-Thread Pipe | ||||||||||
| 1/4"-36 | __ | UNS | __ | 1/4" | 7/32" | 150° | Red | 100 | 00000000 | 00000 |
| 3/8"-24 | __ | UNF | __ | 3/8" | 15/32" | 150° | Red | 100 | 0000000 | 0000 |
| 7/16"-20 | __ | UNF | __ | 15/32" | 15/32" | 150° | Red | 100 | 0000000 | 0000 |
| 7/16"-24 | __ | UNS | __ | 7/16" | 19/64" | 150° | Red | 100 | 00000000 | 0000 |
| 1/2"-20 | __ | UNF | __ | 1/2" | 15/32" | 150° | Red | 100 | 0000000 | 0000 |
| 9/16"-18 | __ | UNF | __ | 9/16" | 17/32" | 150° | Red | 100 | 00000000 | 0000 |
| 5/8"-18 | __ | UNF | __ | 5/8" | 15/32" | 150° | Red | 100 | 00000000 | 0000 |
| 5/8"-18 | __ | UNF | __ | 5/8" | 13/16" | 150° | Red | 100 | 0000000 | 0000 |
| 5/8"-24 | __ | UNEF | __ | 5/8" | 13/32" | 150° | Red | 100 | 00000000 | 0000 |
| 3/4"-16 | __ | UNF | __ | 3/4" | 9/16" | 150° | Red | 100 | 0000000 | 0000 |
| 3/4"-18 | __ | UNS | __ | 3/4" | 11/16" | 150° | Red | 100 | 00000000 | 00000 |
| 3/4"-20 | __ | UNEF | __ | 3/4" | 1/2" | 150° | Red | 100 | 00000000 | 0000 |
| 7/8"-14 | __ | UNF | __ | 7/8" | 11/16" | 150° | Red | 100 | 0000000 | 0000 |
| 7/8"-18 | __ | UNS | __ | 7/8" | 25/32" | 150° | Red | 100 | 00000000 | 00000 |
| 7/8"-20 | __ | UNEF | __ | 7/8" | 23/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1"-14 | __ | UNS | __ | 1" | 25/32" | 150° | Red | 100 | 0000000 | 00000 |
| 1 1/16"-12 | __ | UN12 | __ | 1 1/16" | 3/4" | 150° | Red | 100 | 0000000 | 00000 |
| 1 1/16"-14 | __ | UNS | __ | 1 1/16" | 3/4" | 150° | Red | 100 | 00000000 | 00000 |
| 1 1/8"-18 | __ | UNEF | __ | 1 1/8" | 15/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1 3/16"-12 | __ | UN12 | __ | 1 3/16" | 15/16" | 150° | Red | 100 | 00000000 | 00000 |
| 1 1/4"-18 | __ | UNEF | __ | 1 1/4" | 15/32" | 150° | Red | 100 | 00000000 | 00000 |
| 1 5/16"-12 | __ | UN12 | __ | 1 5/16" | 7/8" | 150° | Red | 100 | 00000000 | 00000 |
| 1 3/8"-18 | __ | UNEF | __ | 1 3/8" | 15/32" | 150° | Red | 50 | 00000000 | 0000 |
| 1 1/2"-12 | __ | UNF | __ | 1 1/2" | 3/4" | 150° | Red | 50 | 00000000 | 00000 |
| 1 5/8"-12 | __ | UN12 | __ | 1 5/8" | 29/32" | 150° | Red | 50 | 00000000 | 00000 |
| 1 3/4"-12 | __ | UN12 | __ | 1 3/4" | 15/16" | 150° | Red | 25 | 00000000 | 00000 |
| 1 7/8"-12 | __ | UN12 | __ | 1 7/8" | 1" | 150° | Red | 25 | 00000000 | 00000 |
| 3"-12 | __ | UN12 | __ | 3" | 1 5/32" | 150° | Red | 10 | 00000000 | 0000 |
| M8 | 1.25 | Metric | __ | 12mm | 8mm | 150° | Yellow | 20 | 0000000 | 00000 |
| M10 | 1.5 | Metric | __ | 14mm | 8mm | 150° | Yellow | 20 | 0000000 | 00000 |
| M12 | 1.75 | Metric | __ | 16mm | 12mm | 150° | Yellow | 20 | 0000000 | 00000 |
| M14 | 2 | Metric | __ | 18mm | 12mm | 150° | Yellow | 15 | 0000000 | 00000 |
| M16 | 2 | Metric | __ | 21mm | 12mm | 150° | Yellow | 15 | 0000000 | 00000 |
| M18 | 2.5 | Metric | __ | 22mm | 12mm | 150° | Yellow | 15 | 0000000 | 00000 |
| M20 | 2.5 | Metric | __ | 25mm | 14mm | 150° | Yellow | 15 | 0000000 | 00000 |
| M22 | 2.5 | Metric | __ | 28mm | 14mm | 150° | Yellow | 10 | 0000000 | 00000 |
| M24 | 3 | Metric | __ | 32mm | 14mm | 150° | Yellow | 10 | 0000000 | 00000 |
| M27 | 3 | Metric | __ | 35mm | 14mm | 150° | Yellow | 5 | 0000000 | 00000 |
| M30 | 3.5 | Metric | __ | 38mm | 14mm | 150° | Yellow | 5 | 0000000 | 00000 |
For NPT Tapered-Thread Pipe | ||||||||||
| __ | __ | NPT | 3/4 | 1 1/32" | 3/4" | 150° | Red | 100 | 0000000 | 00000 |