Boss Head Clamp

Product Code : SCL-CL-12013

Boss Head Clamp (SKU SCL-CL-12013) is the right-angled connector that locks a clamp, extension rod or ring onto the vertical rod of a retort stand. It is used wherever glassware has to be held at a set height, from school titration benches to college distillation set-ups. Schools, colleges, training institutes, tender contractors and distributors can obtain it from Science Lab Supplies, which supplies chemistry lab equipment in India from its base in Ambala.

Specifications

The body is die-cast zinc or aluminium alloy with a powder-coated finish. Two V-grooves set at a fixed 90 degrees take the stand rod and the clamp shank, and each is tightened by a threaded steel thumbscrew, so an attached arm stays level and square to the stand rod.

Applications and Experiments for the Boss Head Clamp

A boss head is needed every time a burette clamp, flask clamp or iron ring is fixed to a retort stand. In schools it appears in Class 11–12 titration and distillation practicals; in colleges it holds condensers and flasks in B.Sc. organic chemistry; physics teachers also use it to hang a pendulum.

• Class 11–12 chemistry: fixing a burette clamp to the stand for volumetric analysis.
• Distillation and reflux: holding flask and condenser clamps at the right heights.
• Class 11 physics: supporting the clamp from which a simple pendulum is suspended.
• Suspending a thermometer or pH probe above a heated vessel.

Standard Scope of Supply

The product description lists four heavy-duty boss head clamps with a laboratory stand assembly instructions guide. Confirm on your enquiry whether you are ordering packs or single pieces; the retort stand and the clamps that fit into the boss head are separate items.

Packing, MOQ and Lead Time

Boss heads are usually ordered by the dozen alongside stands and clamps, but a quote for a small quantity is equally possible. The quotation you receive states packing, delivery time and price for the exact quantity, and matching stands or clamps can be listed on it too.

Science Lab Supplies holds an Importer-Exporter Code as a registered exporter and can ship to buyers in Kenya, Ghana, Ethiopia, Tanzania, Uganda and the UAE. Send your list through the enquiry cart or the contact page; tender buyers will find details on the lab tender page.

Frequently Asked Questions

What rod sizes does the boss head fit?
It grips support rods from 8 mm to 16 mm in diameter, which covers the rods used on most school and college retort stands.

Why is a boss head needed with a burette or flask clamp?
A clamp has a straight shank that cannot grip a vertical rod by itself. The boss head joins the two at a right angle and lets you slide the clamp up or down and lock it.

Who supplies the Boss Head Clamp?
It is supplied by Science Lab Supplies of Ambala, India, which quotes directly to schools, colleges, laboratory dealers and contractors, usually together with the stands and clamps it is used with.

Can it be quoted for a school lab tender?
Yes. Share the tender quantity and delivery location and you will receive an item-wise quotation that follows the specification above.

Related Retort Stand Accessories

A boss head only does its job with a stand and a clamp. These four items make up a complete support assembly for titration, distillation and general glassware work, and all of them can be priced together with the boss heads on one quotation.

• Laboratory Retort Stand — cast iron base with a 600 mm rod.
• Three Prong Glassware Holding Clamp — holds flasks and condensers.
• Four Prong Laboratory Clamp — for large or irregular vessels.
• Burette Clamp Chemistry Lab — holds a burette for titration.

See the complete Chemistry Lab range or browse all school lab equipment.

Last updated: 25 September 2026