Description
BOLA hollow screws with UNF 1/4'' 28G external thread and a bore for 1,6 × 3,2 mm tubing are white PTFE fittings for chromatography connections. Fabricated from polytetrafluoroethylene (PTFE), they accept tubing with an inner diameter of 1,6 mm and an outer diameter of 3,2 mm (1/16 × 1/8''), providing a threaded hollow pathway for liquid transfer in analytical systems. PA pressure discs are supplied with each set to clamp the tubing securely against the screw. The white PTFE construction supports chemically demanding chromatography accessory work where inert wetted parts and a compact UNF interface are preferred. Delivered in packs of 10 pieces, with differing order quantities rounded up in tens, these hollow screws are available from manufacturer Bohlender for laboratory fluid-handling assemblies. Net weight is 0,0015 kg. They are commonly applied on solvent and sample lines, modular chromatography hardware and other small-bore setups that standardise on UNF 1/4'' 28G hollow screws for dependable tubing retention.
This article is part of HPLC fittings, tubing & inline filters, in HPLC columns & accessories.
Key features
- Pack size: 10 pc(s)
- Material: Polytetrafluoroethylene (PTFE)
- Thread type: UNF 1/4'' 28G external
- Tubing size (ID × OD): 1,6 × 3,2 mm
- Colour: White
- Accessories included: PA pressure discs
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Questions about BOLA Tube End Fittings, UNF 1/4'' 28G, Ø 1,6 x 3,2 mm PTFE, white, with washers
What is this article?
BOLA Tube End Fittings, UNF 1/4'' 28G, Ø 1,6 x 3,2 mm PTFE, white, with washers is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in HPLC fittings, tubing & inline filters, inside HPLC columns & accessories, in Chromatography equipment.
HPLC fittings and tubing are numbered by bore. A wide bore after the column broadens the peaks. Finger-tight and wrench fittings, and stainless against PEEK, are different pressure ratings. An inline filter is the last screen before the column, and it clogs on purpose so the column does not.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
Which category should I open next?
The category is HPLC columns & accessories. The sub-category is HPLC fittings, tubing & inline filters. The catalogue is Chromatography equipment.
Shelves beside this one are HPLC columns, HPLC guard columns and HPLC accessories.
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.
