Description
Hexagonal hollow stopper NS 24/29 is a standardised laboratory stopper for sealing larger ground-glass joints in chemical and analytical glassware. With the NS 24/29 joint size and manufactured according to DIN 12252, it provides a precise fit for flasks, condensers, adapters and other apparatus built to this widely used European ground-joint standard. The hexagonal head allows secure handling when seating or removing the stopper, and the hollow design keeps the piece compact at a net weight of 0,022 kg. Delivered as a single piece, it is intended for everyday laboratory sealing duties where an NS 24/29 hollow stopper is specified. This stopper from manufacturer Witeg suits organic synthesis setups, distillation assemblies and general laboratory work that relies on interchangeable NS connections. DIN-compliant dimensions support reproducible joint seals and help keep reaction or storage systems closed during use. Laboratories stocking spare ground-joint components will find the NS 24/29 hexagonal hollow stopper a practical match for existing glassware without special adapters or custom machining.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Type: Hexagonal hollow stopper
- Joint size: NS 24/29
- Standard: DIN 12252
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Questions about ST-hollow stopper hexagonal ST 24/29
What is this article?
ST-hollow stopper hexagonal ST 24/29 is the article on this page. Luminix Health distributes Witeg 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.