| Year | 1954 |
| Date | 11-Feb |
| Volume | 110 |
| Issue | 2,751 |
| Page | 144 |
| Category | Workshop |
| Part | |
| Title | Making Nuts |
| Author | "Duplex" |
| Notes | Chamfering and parting-off tools, a commercial machine tap, machine-tapping the nuts, nut holder, finishing the nut flats, combination nuts, sequence of operations |