Cup head bolt specifications
Specification format: Nominal thread * Screw length
Common examples:M3*8
| 参数 | formula | Common examples |
|---|---|---|
| Screw hole diameter | Nominal thread + 0.2 | 3.2 |
| Screw hole depth | Screw length + 0.5 | 8.5 |
| countersunk hole diameter | Cup head diameter + 0.5 | 6.0 |
| countersunk hole depth | Cup head thickness | 3.0 |
Knurled nut specifications
Specification format: Nominal thread * Total length * Outer diameter
Common examples:M3*4*5
| 参数 | formula | Common examples |
|---|---|---|
| Hole diameter | Outside diameter – 0.4 | 4.6 |
| Hole depth | Total length + 0.4 | 4.4 |
| Hole chamfer | 0.4 | 0.4 |
HereHole chamferUsed to compensate for the volume overflow during thermal embedding.
