1/4 Round Female Standoffs
The 1/4" Round Female Standoff has standard thread sizes and materials:
| Thread | Code | Material | Code | |
| 4-40 | 440 | Aluminum | A | |
| 2-56 | 256 | Brass | B | |
| 8-32 | 832 | Stainless Steel | SS | |
| 10-32 | 1032 | Steel | S | |
| Nylon | N |