| Size Code | Thread |
|---|---|
| Y | 0-80 UNF |
| Z | 2-64 UNF |
| A | 4-40 UNC |
| B | 6-32 UNC |
| C | 8-32 UNC |
| D | 10-32 UNF |
| Part Number | Description | Stock | Price | |
|---|---|---|---|---|
| A221-B28 | SCREW | 88 | £0.35 | |
| A221-B14 | SCREW | 0 | POA | |
| A221-B12 | SCREW | 4 | POA | |
| A221-B10 | SCREW | 6 | POA | |
| A221-A32 | BRASS SCREW | 23 | £0.35 | |
| A221-A16 | SCREW | 9,830 | £0.20 | |
| A221-A10 | SCREW | 586 | £0.20 |