Description
BOLA replacement stirrer sealing screw caps with GL 18 thread for shaft diameter 6 mm apply metered pressure to the O-ring of the special seal, ensuring correct sealing against the stirring shaft. These screw caps form the adjustable closure element of laboratory stirrer sealing assemblies and restore proper compression when original caps are damaged or worn. Dimensioned for 6 mm shafts and GL 18 cap thread, they integrate with matching BOLA special seals and guide sleeves used in chemical and process laboratory stirring setups. The pack contains 3 pieces with a net weight of 0,01 kg, suited to scheduled maintenance of multi-vessel stirring systems. By controlling pressure on the seal O-ring, the caps help maintain a reliable barrier between the vessel interior and the external environment during mixing operations. Produced by Bohlender under the BOLA range, these replacement screw caps support consistent performance of PTFE/FKM stirrer closures in research, synthesis, and quality-control laboratories that rely on GL-thread sealing hardware.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 3 pc(s)
- Shaft diameter: 6 mm
- Cap thread: GL 18
- Function: Metered pressure on special-seal O-ring
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Questions about BOLA Replacement Screw Caps, GL 18, Ø 6 mm
What is this article?
BOLA Replacement Screw Caps, GL 18, Ø 6 mm 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. 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.