Soda-Lime Glass Glass With Countersunk Holes: Soda-Lime Glass (CTE 9.0 x 10^-6 /K, 360 nm – 2.0 um); 82 or 90 degree countersinks on holes from 2 mm. Single-piece prototypes to production volumes, quoted from your drawing.
A drawing for soda-lime glass glass with countersunk holes is mostly a conversation about edges and datums. We produce them in Soda-Lime Glass at 82 or 90 degree countersinks on holes from 2 mm, with depth +/-0.05 mm as the controlling tolerance, and finish the perimeter per spec.
Specifications at a glance
| Material | Soda-Lime Glass (Float per ASTM C1036, low-iron option) |
|---|---|
| Thermal expansion (CTE) | 9.0 x 10^-6 /K |
| Service temperature | 350 C continuous |
| Transmission range | 360 nm – 2.0 um |
| Density | 2.50 g/cm3 |
| Knoop hardness | 585 kg/mm2 |
| Refractive index | 1.52 @ 587 nm |
| Stock thickness | 0.40 – 19 mm |
| Maximum blank size | 1,000 x 800 mm |
| 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 |
What the process holds
Beyond this page, Soda-Lime Glass routinely runs through ultrasonic machining, lapping, cnc machining, dicing in our shop – most real parts combine two or three of these steps.
Production route: drilling, cnc machining – selected per geometry and volume. Edge condition: optional chamfered hole entry.
Getting the drawing right
Three items decide most of the cost and lead time on this work:
- Material note: higher CTE means edge chips propagate under thermal load, so edge finishing quality drives reliability.
- 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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Typical applications
Orders for soda-lime glass glass with countersunk holes cluster in led packaging (groove covers, phosphor carriers, package windows); industrial displays (touch covers, gauge windows, printed bezels). Background reading on the underlying material science: ASTM C1036 flat glass standard.
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: alkali-free glass wafers, BF33 microfluidic chip, microfluidic glass applications.
Buyer questions, answered
Is there a minimum order for soda-lime glass 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.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What tolerances are achievable on Soda-Lime Glass parts?
Ground features hold +/-0.01 mm and lapped thickness reaches +/-0.003 mm. Higher CTE means edge chips propagate under thermal load, so edge finishing quality drives reliability.
Specifications on this page were last reviewed by our engineering team in September 2026.