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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. | |
Steel | ||||||
|---|---|---|---|---|---|---|
| 1/8" | 0.127" | 0.036" | Rockwell B30 | 10 | 00000000 | 000000 |
| 1/4" | 0.252" | 0.069" | Rockwell B30 | 10 | 00000000 | 00000 |
| 3/8" | 0.377" | 0.106" | Rockwell B30 | 10 | 00000000 | 00000 |
| 1/2" | 0.502" | 0.123" | Rockwell B30 | 10 | 00000000 | 00000 |
| 5/8" | 0.628" | 0.098" | Rockwell B30 | 10 | 00000000 | 00000 |
| 3/4" | 0.753" | 0.138" | Rockwell B30 | 10 | 00000000 | 00000 |
| 7/8" | 0.878" | 0.174" | Rockwell B30 | 10 | 00000000 | 00000 |
| 1" | 1.003" | 0.2" | Rockwell B30 | 10 | 00000000 | 00000 |
| 1 1/8" | 1.128" | 0.203" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 1/4" | 1.253" | 0.208" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 3/8" | 1.38" | 0.218" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 1/2" | 1.505" | 0.177" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 5/8" | 1.63" | 0.226" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 3/4" | 1.755" | 0.229" | Rockwell B30 | 5 | 00000000 | 00000 |
| 1 7/8" | 1.88" | 0.24" | Rockwell B30 | 5 | 00000000 | 00000 |
| 2" | 2.005" | 0.244" | Rockwell B30 | 5 | 00000000 | 00000 |
| 2 1/4" | 2.255" | 0.265" | Rockwell B30 | 3 | 00000000 | 00000 |
| 2 1/2" | 2.505" | 0.275" | Rockwell B30 | 3 | 00000000 | 00000 |
| 2 3/4" | 2.755" | 0.298" | Rockwell B30 | 3 | 00000000 | 0000 |
| 3" | 3.005" | 0.313" | Rockwell B30 | 3 | 00000000 | 0000 |
18-8 Stainless Steel  | ||||||
| 1/8" | 0.127" | 0.015" | Rockwell B90 | 10 | 00000000 | 00000 |
| 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 |