Description
BOLA replacement washers for stopcock plugs NS 29,2 / 28,0 with M 14 thread are PTFE underlay washers for BOLA-Eco stopcock plugs. They are dimensioned for ground-joint sizes NS 29,2 and 28,0, with tapers 1:10 and 1:5 respectively, and the M 14 thread used on the matching plugs. Made from polytetrafluoroethylene (PTFE), the washers offer a chemically resistant intermediate layer between the stopcock plug and the securing hardware in laboratory glassware setups. These spare underlay discs support maintenance of Eco stopcock assemblies where correct joint geometry and material compatibility matter. The product is supplied as a pack of 20 pieces with a net weight of 0,004 kg, practical for workshops and laboratories stocking dedicated BOLA-Eco spare parts. From manufacturer Bohlender, the washers are specified solely for the NS 29,2 / 28,0 size pair with M 14 thread and the stated tapers, so they align with the original plug geometry. They form part of the stopcock-securing accessory range and help preserve proper seating during assembly or replacement work on laboratory stopcocks without changing the defined taper or thread configuration.
This article is part of Rubber & silicone stoppers, in Stoppers, caps & closures.
Key features
- Pack size: 20 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Suitable for: BOLA-Eco stopcock plugs
- Ground joint sizes: NS 29,2 / 28,0
- Taper: 1:10 / 1:5
- Thread: M 14
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Questions about BOLA Spare-washer, NS 29,2 28,0 M 14
What is this article?
BOLA Spare-washer, NS 29,2 28,0 M 14 is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in Rubber & silicone stoppers, inside Stoppers, caps & closures, in Labware.
A rubber or silicone stopper is pushed into a mouth. The size number corresponds to a top and bottom diameter. Silicone survives higher temperatures and more autoclave cycles. Natural rubber is attacked by oils and by some solvents.
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 Rubber & silicone stoppers. The catalogue is Labware.
Shelves beside this one are Screw caps & closures, 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.