Material: Low Carbon Steel（Stainless Steel 304）
Hardness:
Others: white Nylon ring
Note: This product mainly for the flat flange, bottom flange surface with thread need to be scheduled
All the fastener specifications of this website only show one part，if you need other specifications，you can call for.
| Specifications: | Across Flat (s): MIN / MAX | Thickness (m): MIN / MAX | Outside Diameter of Washer (A): MIN / MAX | Weight /pcs(g): |
| M4 | 6.8 / 7.0 | 5.8 / 6.0 | 9.6 / 10.0 | 1.32 |
| M5 | 7.8 / 8.0 | 6.7 / 7.1 | 11.6 / 12.0 | 2.34 |
| M6 | 9.8 / 10.0 | 8.7 / 9.1 | 13.5 / 14.2 | 4.20 |
| M8 | 12.7 / 13.0 | 10.7 / 11.1 | 17.4 / 17.9 | 8.23 |
| M10 | 14.7 / 15.0 | 13.0 / 13.5 | 20.5 / 21.0 | 13.70 |
| M12 | 17.7 / 18.0 | 15.7 / 16.1 | 25.5 / 26.0 | 24.60 |
| M14 | 20.7 / 21.0 | 17.7 / 18.2 | 28.5 / 30.0 | 32.20 |
| M16 | 23.7 / 24.0 | 19.5 / 20.3 | 31.9 / 34.5 | 39.5 |
