| Year | 1956 |
| Date | 09-Feb |
| Volume | 114 |
| Issue | 2,855 |
| Page | 241 |
| Category | Workshop |
| Part | 2 |
| Title | Making socket head screws |
| Author | Marting Cleeve |
| Notes | Free from backlash, grinding the hexagon, making grub and cap screws, threading grub screws, warning of other limitations, the lubricant for threading, an alternative use of die-holder |