Beschrijving
Square double bossheads in Laboral material provide lightweight yet sturdy dual-rod clamping for laboratory stands at a fixed 90° angle. Each clamp accepts rods of 12–13 mm × 12–13 mm diameter and is secured with a hexagon socket screw for dependable grip during routine apparatus set-up. The square body offers clear alignment faces and a compact footprint on retort frames, while the Laboral construction keeps the unit at only 90,0 g—useful where reduced mass on the stand is preferred. Supplied as one piece, the bosshead is ready for immediate use in teaching, quality-control and research environments. An optional 360° connecting rod (d=12 mm) from manufacturer Bochem can join two of these clamps when free angular orientation is needed beyond the standard right angle. Typical applications include holding glassware, funnels, probes and small instruments on standard laboratory scaffolding. The combination of square geometry, dual clamping range and hex-screw fastening supports stable, repeatable assemblies without unnecessary bulk on the bench or in the fume hood.
This article is part of Clamps & bossheads, in Stands, clamps & racks.
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Questions about Bosshead squared, Laboral, d=12-13x12-13mm
What is this article?
Bosshead squared, Laboral, d=12-13x12-13mm is the article on this page. Luminix Health distributes Bochem for laboratory use. It sits in Clamps & bossheads, inside Stands, clamps & racks, in Labmateriaal.
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 Labmateriaal.
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.

