Custom Glass With Countersunk Holes: 82 or 90 degree countersinks on holes from 2 mm. Single-piece prototypes to production volumes, quoted from your drawing.
custom glass with countersunk holes are ordered for flush fastener mounting in guards and fixtures. The geometry envelope is 82 or 90 degree countersinks on holes from 2 mm, held to depth +/-0.05 mm, in fused silica, Borofloat 33, quartz and soda-lime.
The numbers
| Geometry | Glass With Countersunk Holes |
|---|---|
| Size envelope | 82 or 90 degree countersinks on holes from 2 mm |
| Key tolerance | depth +/-0.05 mm |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
DFM notes from the shop floor
Three items decide most of the cost and lead time on this work:
- Hold the controlling dimension (depth +/-0.05 mm) and let secondary dimensions carry standard tolerance – it is the single biggest cost lever.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
What the process holds
Production route: drilling, cnc machining – selected per geometry and volume. Edge condition: optional chamfered hole entry.
Application context
The recurring buyers of custom glass with countersunk holes: oled packaging (cover lids, frit-seal frames, fill-port plates); aerospace optics (sensor windows, star-tracker flats, radiation-tolerant ports); microfluidic devices (chips, manifolds, via plates, bonded stacks).
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Related reading on this site: edge grinding overview, custom ITO glass, laser glass cutting.
Common questions
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What sizes are available for glass with countersunk holes?
82 or 90 degree countersinks on holes from 2 mm, held to depth +/-0.05 mm.
Is there a minimum order for custom glass with countersunk holes?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Specifications on this page were last reviewed by our engineering team in September 2026.