A Carriage Bolt Head ThumbWheel, this is for 1/2 inc or M12 default size, please check size and scale for your bolt.
| M Size approx | Inch | Scale approx at |
| M5 | #10 | 42% |
| M6 | 1/4 | 50% |
| M8 | 5/16 | 67% |
| M10 | 3/8 | 83% |
| -- | 7/16 | 93% |
| M12 | 1/2 | 100% |
| M16 | 5/8 | 125% |
| -- | 3/4 | 150% |
| Bolt_307A_Head_ThumbWheel.stl | 96.8KB | |
| manilla_redonda_corta.stl | 221.1KB | |
| manilla_rendonda_larga.stl | 249.1KB |
