Description
BOLA screw caps GL 18 without bore are black laboratory screw closures equipped with an internal PTFE/silicone seal for dependable sealing on GL-threaded laboratory glassware. A grippy knurled exterior aids controlled tightening and opening, while the embedded seal levels out small unevenness on the sealing surface. The cap body is made of PPS; by design, once fitted, the medium contacts only the PTFE face of the seal, which is advantageous for chemically sensitive applications. These solid caps without bore serve pure closure duties where no port for tubing or instrumentation is needed. Matched to GL 18 threads, they suit bottles, flasks and process vessels used in everyday laboratory work. Net weight is 0,0062 kg per piece, and the items are offered in packs of 10 pc(s) from manufacturer Bohlender. With knurled handling, PTFE-only media contact and a PTFE/silicone gasket, these BOLA screw caps provide a robust, practical sealing option for analytical, synthesis and general laboratory environments.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Brand: BOLA
- Thread: GL 18
- Design: without bore, black
- Seal: PTFE/silicone
- Cap material: PPS
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Questions about BOLA Screw Caps, GL 18 without bore, black, with PTFE-Silicone gasket, max. temp
What is this article?
BOLA Screw Caps, GL 18 without bore, black, with PTFE-Silicone gasket, max. temp is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
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 Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass 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. Delivery across Europe, two to five days when in stock. 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.