Project Description
Hex head wood screw(Lag screws)
Hex head wood screw(lag screw) is mainly used to fastening heavy duty wood work pieces together, because hex head design could offer higher torque by using hex wrench during assembly.Sometimes they are used in engineered timber structures fastening.
S-metal supply hex head wood screw(lag screw) with steel zinc plated and stainless steel material.
Standard: DIN 571/ ASME B 18.2.1
Material: Steel/Stainless steel
Surface: zinc galavanized/plain
Unless ortherwise specified, no chemical or physical requirements shall apply on hex head wood screw.
DIN571 hex head wood screw
Dimension in mm.
| Diameter d | ds | k | s | |||
| max | min | max | min | max | min | |
| 4 | 4 | 3.52 | 3.1 | 2.5 | 7 | 6. 64 |
| 5 | 5 | 4. 52 | 3. 88 | 3.13 | 8 | 7. 64 |
| 6 | 6 | 5. 52 | 4. 38 | 3. 63 | 10 | 9. 64 |
| 7 | 7 | 6. 42 | 5. 38 | 4.63 | 12 | 11.57 |
| 8 | 8 | 7. 42 | 5. 88 | 5.13 | 13 | 12. 57 |
| 10 | 10 | 9. 42 | 7. 45 | 6.55 | 17 | 16. 57 |
| 12 | 12 | 11.3 | 8. 45 | 7. 55 | 19 | 18.48 |
| 16 | 16 | 15.3 | 10.45 | 9. 55 | 24 | 23.16 |
| 20 | 20 | 19.3 | 13.9 | 12.1 | 30 | 29.16 |
