Metric Allen Key Table
Allen Keys are available in Long / Short Arm & Tee Key Type and also available
as Hexagon Drive Bits for use with Cordless Drill Drivers & Various Hand Tools.
| Socket Cap Screw | Key Size A/F |
|---|---|
| M1.6. | 1.5mm |
| 2mm | 1.5mm |
| 2.5mm | 2mm |
| 3mm | 2.5mm |
| 4mm | 3mm |
| 5mm | 4mm |
| 6mm | 5mm |
| 8mm | 6mm |
| 10mm | 8mm |
| 12mm | 10mm |
| 14mm | 12mm |
| 16mm | 14mm |
| Socket Button Head Screw | Key Size |
|---|---|
| 3mm | 2mm |
| 4mm | 2.5mm |
| 5mm | 3mm |
| 6mm | 4mm |
| 8mm | 5mm |
| 10mm | 6mm |
| 12mm | 8mm |
| Socket Shoulder Screw | Key Size |
|---|---|
| 6 (M5) | 3mm |
| 8 (M6) | 4mm |
| 10 (M8) | 5mm |
| 12 (M10) | 6mm |
| 16 (M12) | 8mm |
| 20 (M16) | 10mm |
| 24 (M20) | 12mm |