Product Made in Japan
Manufacturer : Naniwa
Model: Whitworth screw(Hook)
Dimensions
| Nominal name of the screw | A | B | L | S | Weight (kg) |
| 1/4 | 9 | 6 | 80 | 45 | 0.02 |
| 3/8 | 11 | 10 | 120 | 70 | 0.07 |
| 1/2 | 16 | 13 | 153 | 93 | 0.02 |
| 5/8 | 20 | 16 | 184 | 110 | 0.27 |
| 3/4 | 23 | 20 | 220 | 130 | 0.48 |
| 7/8 | 25 | 24 | 250 | 145 | 0.73 |
| 1″ | 30 | 27 | 265 | 165 | 1.06 |
