Description
Hollow hexagonal stopper NS 29/32 in brown Boro 3.3 is a laboratory ground-joint closure for vessels fitted with matching standard taper joints. The stopper combines a hollow body with a hexagonal head that supports secure grip when inserting or removing the piece from flasks, bottles and other glass apparatus. Brown Boro 3.3 denotes borosilicate glass 3.3 in a brown colour, a familiar material choice for laboratory stoppers of this type. The nominal size NS 29/32 follows the European ground-joint standard, so the stopper mates with glassware prepared to that joint dimension. Supplied in a pack of 100 pieces, the format suits multi-station laboratories and teaching environments that need interchangeable closures on hand. These stoppers from manufacturer Hecht belong to the laboratory materials range and serve everyday sealing tasks wherever NS 29/32 connections are specified. The hexagonal outer profile aids controlled handling at the bench, while the hollow design defines the overall form and mass of the stopper relative to solid alternatives of the same joint size. Intended for routine laboratory use on compatible ground-glass systems.
This article is part of Ground-joint glass stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 100 pc(s)
- Type: Hollow hexagonal stopper
- Material: Boro 3.3
- Colour: Brown
- Joint size: NS 29/32
- Design: Hollow body, hexagonal head
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Questions about Hollow glass stoppers amber, hexagonal, Boro 3.3, Size: NS 29/32
What is this article?
Hollow glass stoppers amber, hexagonal, Boro 3.3, Size: NS 29/32 is the article on this page. Luminix Health distributes Hecht 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.