Joints Cone Unprinted
Product Code : EL-GJ-10252
Quick Answer: A Joints Cone Unprinted is the inner, male half of a standard ground-glass taper joint, supplied without a printed size marking on the glass. It mates with a matching socket joint to form a leak-resistant connection between glassware components in distillation, vacuum and general laboratory assemblies, and is available across a range of standard taper sizes.
| Socket Size | Approx. O.D. of Tube (mm) | Total Length (mm) |
|---|---|---|
| 10/30 | 8 | 120±10 |
| 12/30 | 10 | 120±10 |
| 14/35 | 13 | 120±10 |
| 19/38 | 16 | 120±10 |
| 24/40 | 22 | 150±15 |
| 29/42 | 26 | 150±15 |
| 34/35 | 30 | 150±15 |
| 45/40 | 40 | 150±15 |
Sizes above follow standard cone joint dimensional tolerances.
Matching a Cone Joint to Its Socket
A cone joint is only one half of a working connection – it must be paired with a socket joint of the identical standard-taper size (for example, a 24/40 cone joint mates only with a 24/40 socket, not a 19/38 or 29/42). The number pair denotes the joint's top diameter and its taper length in millimetres, and buyers assembling a distillation or vacuum setup from mixed sources should always confirm both figures match before ordering. Lab Glassware Manufacturer's Socket Joints Unprinted are manufactured to the same size range as this cone joint, and Keck clips are available separately to secure a mated pair under vacuum.
Frequently Asked Questions
What does the size pair, such as 24/40, mean?
The first number is the joint's top outer diameter in millimetres and the second is its taper length in millimetres; both figures must match between a cone and its mating socket for a correct fit.
What does "unprinted" mean?
It means the joint is supplied without a printed size marking on the glass, a plain-finish option some buyers prefer for a cleaner appearance while the taper dimensions remain standard.
Related Products
Socket Joints Unprinted | Cone Joints With Drip Tip Unprinted | Keck Clips For Joints | Glass Joints | Laboratory Glass Joints
Request a Quote
For pricing, bulk-order and export enquiries on the Joints Cone Unprinted, contact Lab Glassware Manufacturer via our Contact Us page, or view current institutional and government supply opportunities on our Tenders page.
Last updated: September 2026