The plate is bolted from both sides, so the counterbores are offset to keep them from meeting and leaving the middle hollow.
Depth is controlled on each face, and both faces are ground so the plate seats on its mating part with screw heads flush.
Double-Side Counterbored Plate
Counterbores on each face are offset so they never meet inside the plate, and both faces are ground so screw heads sit flush.
- Material
- Alloy steel
- Process
- 3-axis milling + boring + surface grinding + tapping
- Tolerance
- ±0.02 mm hole pattern · ±0.01 mm flatness
- Finish
- Ground faces (Ra 0.8 µm), anodizing optional
- Size
- Custom per drawing
- Batch
- 1 pc sample – 1,000 pcs / year
- Lead time
- 15–20 working days (first article 10–12)
- Documents
- FAI report · material cert · dimensional report