Description
Glass hollow stopper NS 29/32 with hexagonal grip disc is a precision ground-joint closure for laboratory glassware. Manufactured in DURAN glass, it matches the standard NS 29/32 taper so it seats reliably in flasks, adapters and other vessels that use this joint size. The hollow design reduces mass while maintaining a full sealing surface, and the hexagonal grip disc allows secure handling with gloves or bare hands when opening or closing apparatus. This stopper is intended for routine organic synthesis, distillation setups and general wet-chemistry work where a reusable glass joint stopper is preferred. Supplied as a single piece, it is easy to stock as a spare or to complete a new assembly. The item comes from manufacturer Dinkelberg and aligns with common European joint standards used across teaching and research laboratories. DURAN glass offers the thermal and chemical resistance expected of borosilicate laboratory glassware in everyday use. Select this NS 29/32 hollow stopper with hexagonal grip when you need a durable, easy-to-turn glass closure for standard ground-joint equipment.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc(s)
- Product type: Glass hollow stopper
- Joint size: NS 29/32
- Grip: Hexagonal grip disc
- Material: DURAN glass
- Design: Hollow stopper
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Questions about Hollow glass stopper, pointed, NS 29,2
What is this article?
Hollow glass stopper, pointed, NS 29,2 is the article on this page. Luminix Health distributes Dinkelberg for laboratory use. It sits in Ground-joint glass stoppers, inside Stoppers, caps & closures, in Labware.
A ground-glass stopper matches a ground neck of a stated joint size. A 14/23 stopper does not seal a 29/32 neck. The stopper is part of the flask's seal, and a chip on the grind is a leak.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Ground-joint glass stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, Rubber & silicone stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.