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Expansion Plugs for Castings
Also known as freeze plugs, these are commonly used to permanently seal the shallow holes left in a component during the casting process.
18-8 stainless steel plugs are more corrosion resistant than steel.
For technical drawings and 3-D models, click on a part number.
| For ID | Dia. | Ht. | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| 1/8" | 0.127" | 0.015" | Rockwell B90 | 10 | 00000000 | 000000 |
| 1/4" | 0.252" | 0.069" | Rockwell B90 | 10 | 00000000 | 00000 |
| 3/8" | 0.377" | 0.106" | Rockwell B90 | 10 | 00000000 | 00000 |
| 1/2" | 0.502" | 0.075" | Rockwell B90 | 10 | 00000000 | 00000 |
| 5/8" | 0.628" | 0.098" | Rockwell B90 | 10 | 00000000 | 00000 |
| 3/4" | 0.753" | 0.138" | Rockwell B90 | 10 | 00000000 | 00000 |
| 7/8" | 0.878" | 0.171" | Rockwell B90 | 7 | 00000000 | 00000 |
| 1" | 1.003" | 0.19" | Rockwell B90 | 7 | 00000000 | 00000 |
| 1 1/8" | 1.128" | 0.2" | Rockwell B90 | 1 | 00000000 | 0000 |
| 1 1/4" | 1.253" | 0.205" | Rockwell B90 | 5 | 00000000 | 00000 |
| 1 3/8" | 1.38" | 0.215" | Rockwell B90 | 5 | 00000000 | 00000 |
| 1 1/2" | 1.505" | 0.217" | Rockwell B90 | 5 | 00000000 | 00000 |
| 1 5/8" | 1.63" | 0.232" | Rockwell B90 | 1 | 00000000 | 0000 |
| 1 3/4" | 1.755" | 0.226" | Rockwell B90 | 3 | 00000000 | 00000 |
| 1 7/8" | 1.88" | 0.237" | Rockwell B90 | 3 | 00000000 | 00000 |
| 2" | 2.005" | 0.241" | Rockwell B90 | 3 | 00000000 | 00000 |
| 2 1/4" | 2.255" | 0.262" | Rockwell B90 | 3 | 00000000 | 00000 |
| 2 1/2" | 2.505" | 0.272" | Rockwell B90 | 3 | 00000000 | 00000 |
| 2 3/4" | 2.755" | 0.295" | Rockwell B90 | 1 | 00000000 | 0000 |
| 3" | 3.005" | 0.31" | Rockwell B90 | 2 | 00000000 | 00000 |
Hydraulic Sealing Plugs
Permanently seal unthreaded holes in pneumatic and hydraulic components. An installation tool (sold separately) is required. Insert the plug into a hole and use a hammer (or arbor press) with the installation tool to set the ball bearing in place.
For technical drawings and 3-D models, click on a part number.
| For ID | For Min. Hole Dp. | Ht. | Max. Temp., °F | Hardness | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||
|---|---|---|---|---|---|---|---|
| 5/32" | 0.13" | 5/32" | 210° | Rockwell B90 | 5 | 00000000 | 00000 |
| 3/16" | 0.152" | 3/16" | 210° | Rockwell B90 | 5 | 00000000 | 0000 |
| 7/32" | 0.187" | 7/32" | 210° | Rockwell B90 | 5 | 00000000 | 0000 |
| 1/4" | 0.212" | 17/64" | 210° | Rockwell B90 | 5 | 00000000 | 00000 |
| 9/32" | 1/4" | 9/32" | 210° | Rockwell B90 | 5 | 00000000 | 00000 |
| 5/16" | 0.327" | 21/64" | 210° | Rockwell B103 | 5 | 00000000 | 00000 |
| 11/32" | 0.385" | 25/64" | 210° | Rockwell B103 | 1 | 00000000 | 0000 |
| 3/8" | 0.425" | 7/16" | 210° | Rockwell B103 | 1 | 00000000 | 0000 |
| 13/32" | 0.425" | 7/16" | 210° | Rockwell B103 | 1 | 00000000 | 0000 |
| 7/16" | 0.503" | 33/64" | 210° | Rockwell B103 | 1 | 00000000 | 0000 |
| 15/32" | 0.504" | 33/64" | 210° | Rockwell B103 | 1 | 00000000 | 0000 |
| For ID | Lg. | Dia. | Each | |
Steel | ||||
|---|---|---|---|---|
| 5/32" | 5" | 3/8" | 00000000 | 0000000 |
| 3/16" | 5" | 3/8" | 00000000 | 000000 |
| 7/32" | 5" | 3/8" | 00000000 | 000000 |
| 1/4" | 5" | 3/8" | 00000000 | 000000 |
| 9/32" | 5" | 3/8" | 00000000 | 000000 |
| 5/16" | 5" | 3/8" | 00000000 | 000000 |
| 11/32" | 5" | 5/8" | 00000000 | 000000 |
| 3/8" | 5" | 5/8" | 00000000 | 000000 |
| 13/32" | 5" | 5/8" | 00000000 | 000000 |
| 7/16" | 5" | 5/8" | 00000000 | 000000 |
| 15/32" | 5" | 5/8" | 00000000 | 000000 |
Metal Round Caps
More durable than plastic caps, these provide the most protection from abrasion and impact.
Stainless steel caps have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel | ||||
|---|---|---|---|---|
| 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 |
| 2 3/4" | __ | 1 3/8" | 00000000 | 0000 |
| 3" | __ | 1 1/8" | 00000000 | 00000 |
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" | 00000000 | 0000 |
| 2 3/8" | 2 | 1 1/16" | 00000000 | 0000 |
| 2 7/8" | 2 1/2 | 1 3/8" | 00000000 | 0000 |
| 3 1/2" | 3 | 1 3/8" | 00000000 | 00000 |
| 4" | 3 1/2 | 1 1/2" | 00000000 | 00000 |
| 6 5/8" | 6 | 1 7/8" | 00000000 | 00000 |
Threaded Standoff Caps
Give open-ended standoffs a finished look and protect them from dirt and debris.
Stainless steel caps have excellent corrosion resistance, making them the best choice for harsh environments. They also have good chemical resistance.
For technical drawings and 3-D models, click on a part number.