Description
Screw cap GL 100 with bore is a laboratory closure for GL-threaded glassware and vessels that need both a secure seal and open access through the lid. The grey cap is moulded from PBT reinforced with glass fibre and features a central bore of 85 mm diameter, allowing tubing, probes or other inserts to pass while the thread maintains a reliable connection. Autoclavable and temperature-resistant up to 160 °C, the component withstands repeated sterilisation cycles and routine thermal stress without loss of dimensional stability. Supplied as a single piece, it fits standard GL 100 bottle and flask systems used in chemistry, biology and process work. The glass-fibre-filled polymer body from manufacturer Witeg combines mechanical strength with moderate weight, making frequent opening and closing straightforward. Typical uses include media bottles, reaction vessels and storage containers where controlled access through the closure is required. Net weight is 0,112 kg, supporting easy handling on the bench or in autoclave loads.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 1 pc
- Thread size: GL 100
- Bore diameter: 85 mm
- Material: PBT with glass fibre
- Colour: Grey
- Temperature resistance: up to 160 °C
- Technical Information Sheet:
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Questions about Screw caps GL 100 top with hole
What is this article?
Screw caps GL 100 top with hole is the article on this page. Luminix Health distributes Witeg 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.