| Year | 1950 |
| Date | 19-Jan |
| Volume | 102 |
| Issue | 2,539 |
| Page | 73 |
| Category | Novices' Corner |
| Part | |
| Title | Screws and Screw Threading |
| Author | |
| Notes | Die holder with guide collet, range of screw threads for amateur use, choice of screwing tackle, method of securing & adjusting a die, elementary screw threading, tapping holes |