Stainless Steel 150LB Square Plug
Stainless steel 150LB square plug for threaded pipe fitting systems, used to close female threaded ports with a square head for tightening.
Product Details
| Item | Specification |
|---|---|
| Product Type | Stainless Steel 150LB Square Plug |
| Connection | Threaded male square head plug |
| Pressure Rating | 150 LBS |
| Thread Standards | ASME B1.20.1 (NPT), DIN 2999 & BS21, ISO 228/1 & ISO 7/1 |
| Dimensional Standards | ISO 4144, SP-114, EN-10241, JIS |
| Material Options | ASTM A351-CF8M / 1.4408, ASTM A351-CF8 / 1.4401, ASTM A216-WCB |
| Available Grades | AISI 304, 304L, 316, 316L, 301, 430 and related grades |
Available Sizes
| Size | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thread Size | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
Dimensions Diagram

ISO 4144 Dimensions (mm)
| Dimension | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | 16 | 19 | 21 | 25 | 28 | 31 | 35 | 36 | 41 | 48 | 58 | 62 |
| H | 7 | 9 | 12 | 14 | 17 | 19 | 23 | 26 | 32 | 41 | 45.5 | 57.5 |
SP-114 Dimensions (mm)
| Dimension | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | 16 | 18 | 20 | 22 | 27 | 32 | 36 | 37 | 43 | 46 | 50 | 62 |
| H | 7 | 9 | 10 | 11 | 16 | 19 | 22 | 22 | 27 | 32 | 36 | 58 |
EN-10241 Dimensions (mm)
| Dimension | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 1 1/4 | 1 1/2 | 2 | 2 1/2 | 3 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | 19 | 20 | 22 | 25 | 27.5 | 32 | 35 | 37 | 39 | 48 | 52 | 62 |
| H | 7 | 9 | 11 | 13 | 16 | 20 | 24 | 25 | 32 | 42 | 46 | 58 |
