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 | 00000 |
| 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 | 00000 |
| 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.
Aluminum plugs withstand temperatures up to 650° F, which is more than four times as high as polyethylene and nylon plugs. They are also more abrasion resistant. 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 | 00000 |
| Thread Size | For Tube OD | Ht. | Max. Temp., °F | Pkg. Qty. | Pkg. | |
| 5/16"-24 | 5/32" | 11/32" | 650° | 25 | 0000000 | 000000 |
| 3/8"-24 | 3/16" | 9/32" | 650° | 25 | 0000000 | 00000 |
| 7/16"-20 | 1/4" | 9/32" | 650° | 25 | 0000000 | 00000 |
| 1/2"-20 | 5/16" | 5/16" | 650° | 25 | 0000000 | 00000 |
| 9/16"-18 | 3/8" | 5/16" | 650° | 25 | 0000000 | 00000 |
| 5/8"-18 | 3/8" | 5/16" | 650° | 25 | 0000000 | 00000 |
| 3/4"-16 | 1/2" | 7/16" | 650° | 25 | 0000000 | 00000 |
| 7/8"-14 | 5/8" | 1/2" | 650° | 25 | 0000000 | 00000 |
| 1 1/16"-12 | 3/4" | 15/32" | 650° | 25 | 0000000 | 00000 |
| 1 5/16"-12 | 1" | 7/16" | 650° | 25 | 0000000 | 00000 |
| 1 7/8"-12 | 1 1/2" | 5/8" | 650° | 5 | 0000000 | 00000 |
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 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.
Aluminum plugs withstand temperatures up to 650° F, which is more than four times as high as polyethylene plugs. They are also more abrasion resistant.
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. | |
Aluminum | ||||||||
|---|---|---|---|---|---|---|---|---|
| 3/8"-24 | 3/16" | 3/8" | 650° | __ | __ | 25 | 0000000 | 000000 |
| 7/16"-20 | 1/4" | 15/32" | 650° | __ | __ | 50 | 0000000 | 00000 |
| 1/2"-20 | 5/16" | 15/32" | 650° | __ | __ | 50 | 0000000 | 00000 |
| 9/16"-18 | 3/8" | 1/2" | 650° | __ | __ | 50 | 0000000 | 00000 |
| 5/8"-18 | 3/8" | 1/2" | 650° | __ | __ | 25 | 0000000 | 00000 |
| 3/4"-16 | 1/2" | 19/32" | 650° | __ | __ | 50 | 0000000 | 00000 |
| 7/8"-14 | 5/8" | 11/16" | 650° | __ | __ | 25 | 0000000 | 00000 |
| 1 1/16"-12 | 3/4" | 21/32" | 650° | __ | __ | 25 | 0000000 | 00000 |
| 1 5/16"-12 | 1" | 23/32" | 650° | __ | __ | 10 | 0000000 | 00000 |
| 1 7/8"-12 | 1 1/2" | 7/8" | 650° | __ | __ | 5 | 0000000 | 00000 |
Polyethylene Plastic | ||||||||
| 5/16"-24 | 1/8" | 7/16" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 3/8"-24 | 3/16" | 15/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 7/16"-20 | 1/4" | 17/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 1/2"-20 | 5/16" | 17/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 9/16"-18 | 3/8" | 1/2" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 5/8"-18 | 3/8" | 19/32" | 150° | Durometer 40D | Red | 100 | 0000000 | 00000 |
| 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 | 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° | Rockwell R90 | Yellow | 10 | 0000000 | 00000 |
| 3/8 | 3/8" | 250° | Rockwell R90 | Yellow | 10 | 0000000 | 0000 |
| 1/2 | 7/16" | 250° | Rockwell R90 | Yellow | 10 | 0000000 | 0000 |
| 3/4 | 7/16" | 250° | Rockwell R90 | Yellow | 10 | 0000000 | 0000 |
External Hex Drive | |||||||
Nylon Plastic | |||||||
| 1/4 | 11/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 00000 |
| 3/8 | 11/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 00000 |
| 1/2 | 15/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 00000 |
| 3/4 | 15/32" | 245° | Durometer 54D | Yellow | 10 | 0000000 | 00000 |
| 1 | 19/32" | 245° | Durometer 54D | Yellow | 5 | 0000000 | 0000 |
Fixture Plate Chip Plugs
Keep chips and shavings from clogging or damaging unused holes on fixture plates in milling machines. Easy to install and remove, these plugs can be reused in different holes when you need to change setups. Made of steel, they have a black-oxide finish for rust resistance.
For technical drawings and 3-D models, click on a part number.
| Drive Style | Thread Size | Ht. | Each | |
Black-Oxide Steel | ||||
|---|---|---|---|---|
| Slotted | 1/2"-13 | 1/2" | 0000000 | 00000 |