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 suits any set-up where glassware has to be held at a set height, from school titration benches to college distillation work. For chemistry lab equipment in India, Science Lab Supplies in Ambala quotes packs of these connectors to schools, colleges, training institutes, tender contractors and distributors.

Specifications

The table below sets out the boss head’s construction point by point. In short, a powder-coated die-cast zinc or aluminium alloy body carries two V-grooves fixed at 90 degrees, each tightened by an oversized threaded steel thumbscrew, so an attached arm stays level on stand rods of 8–16 mm.

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. It serves Class 11–12 titration and distillation practicals, holds condensers and flasks in B.Sc. organic chemistry, and can also carry the clamp from which a physics pendulum hangs.

• Class 11–12 chemistry: fixing a burette clamp, or a double burette clamp for paired titrations, to the stand.
• Distillation and reflux: holding the clamps that carry a Round-bottom Flask and a Liebig Condenser 200mm at the right heights.
• Class 11 physics: supporting the clamp from which a simple pendulum is suspended.
• Suspending a Thermometer (with no Mercury) or a pH probe above a heated vessel.

Standard Scope of Supply

Each pack holds four heavy-duty boss head clamps and a laboratory stand assembly instructions guide. Mention on your enquiry whether you want packs or loose pieces; the retort stand and the clamps that fit into the boss head are separate items that can join the same quotation.

Packing, MOQ and Lead Time

A quotation can cover a single pack or enough boss heads for every stand in the laboratory. It states packing, delivery time and price for the exact quantity, and matching stands, burette clamps or flask clamps can be listed on the same document.

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. Write to us from the contact page with the quantity, or add the connectors to the enquiry cart; formal bids follow the process 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, so it fits the 12 mm rod of the Laboratory Retort Stand as well as thinner and thicker stand rods.

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?
Science Lab Supplies in Ambala, India, handles enquiries for it. Quotations go straight to schools, colleges, laboratory dealers and contractors, and stands or clamps from the same range can be added so a complete support assembly is priced in one reply.

Can it be quoted for a school lab tender?
Yes. Share the tender quantity, delivery location and any specification sheet, and you will receive an item-wise quotation that follows the details above, with stands and clamps priced as separate lines.

Related Stands and Clamps

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

• Laboratory Retort Stand — powder-coated cast iron base, 200 x 125 mm, with a 12 mm stainless steel rod.
• Three Prong Glassware Holding Clamp — three PVC-sleeved prongs opening 15–85 mm on a 10 mm rod.
• Four Prong Laboratory Clamp — two separately adjusted finger pairs for large or tapered vessels.
• Burette Clamp Chemistry Lab — single scissor-action jaw for 10, 25 or 50 mL burettes.
• Double Burette Clamp Fisher — holds two burettes from 10 mL up to 100 mL.
• Laboratory Stand — cast iron base and rod with a counter clamp, middle clamp and two metal rings.
• Retort Stand with Boss Head and Clamp — 23 in stainless steel rod on a 5 x 8 in cast iron base.
• Retort Squat Base — stoved-enamel cast iron base for 10 mm rods, weighing 0.57 kg.

See the complete Chemistry Lab range, the Physics Lab range for retort bases, or browse all school lab equipment.

Last updated: 9 October 2026