Description
Superfix joint clip NS 34/35-34/45 is a complete ground-joint securing assembly for laboratory glassware in the NS 34/35 to NS 34/45 size range. The system comprises a white protective cap, a threaded core inner part and a clamping O-ring, delivering reliable fixation of conical ground joints during routine experimental work. Designed for standard laboratory conical joints, the clip maintains secure coupling of glass apparatus without additional fastening hardware. Supplied by manufacturer Witeg as a ready-to-use set, the lightweight assembly (net weight 0,026 kg) is practical for multi-setup chemistry and analytical laboratories. Each pack contains 5 pieces, supporting efficient stocking and replacement. The combination of cap, internal threaded element and elastic O-ring clamp helps preserve joint integrity under typical laboratory conditions while remaining simple to apply and remove. Suitable for everyday glassware connections in teaching, research and quality-control environments where dependable NS joint retention is required.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 5 pc(s)
- Type: Superfix ground joint clip
- Joint size: NS 34/35-34/45
- Cap colour: White
- Scope of delivery: Complete with cap, threaded core and clamping O-ring
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Questions about SUPERFIX- Safety devices ST 34
What is this article?
SUPERFIX- Safety devices ST 34 is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Clamps & bossheads, inside Stands, clamps & racks, in Labware.
A bosshead grips the rod. A clamp grips the flask or the condenser, usually through two jaws with cork or vinyl faces. Three-finger and two-finger clamps hold different shapes. The jaw opening is the specification.
A stand, a clamp and a rack hold something still so the hands can do the work. A bosshead locks a clamp to a rod. A test-tube rack keeps tubes upright and in an order the operator can read back. The failure is almost always mechanical: the clamp slips, or the rack does not match the tube diameter. The glass they support is indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stands, clamps & racks. The sub-category is Clamps & bossheads. The catalogue is Labware.
Shelves beside this one are Test tube racks, Stands, rods & bases and Stand & rack 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. 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.

