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 |
Process window
Beyond this page, Soda-Lime Glass routinely runs through etching, sandblasting, polishing, lapping 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.
Specification advice
Before sending the RFQ, check these against your drawing:
- 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.
Application context
soda-lime glass glass with countersunk holes shows up across 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.
Engineers scoping this work usually also review alkali-free glass wafers, glass in laser systems, glass hole micromachining.
Buyer questions, answered
How does Soda-Lime Glass behave under heat?
CTE is 9.0 x 10^-6 /K and continuous service reaches 350 C continuous, which is what drives its use where lowest cost per square meter matters.
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 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.
Specifications on this page were last reviewed by our engineering team in August 2026.