Product Features

  • 2-pack adjustable boss head clamp holders. 
  • Available for rods up to 16mm and 21mm.
  • Made of high-quality Aluminum Alloy body with plastic knobs, ensuring it durable and sturdy constructed. 
  • Large, easy-to-rotate knobs help provide extra leverage to easy and accurate adjustment. 
  • Widely used in labs for keeping the clamp in place. 


Product Options

  • up to 16mm: XL-815474
  • up to 21mm: XL-815475


Adjustable Bosshead Clamp Holder, Boss Head, Aluminum Alloy Body, 2 Pack

SKU: XL-815602
Rod Diameter
  • Processing Time

    Usually Ship in 5 - 7 Business Days. Shipping may take longer than expected during COVID-19.

Customer questions & answers


kathie Morris

A lil expensive and the one had a deformed stem tip.

Brian Scott Sheldon

Very durable glassware. I ordered another set of 120mm funnels. I will use Stonylab glassware from now on.


the item is what it was described and works well for my purpose

John R Van H ouden

Top notch for what am using them for

Jessica Linder

Very nice glass work very well packagd I haven't used it yet planning to use for precious metal recovery not sure about the white stone or if I got the wrong piece ?? looks great



120 Lake Ave S Suite 22
Nesconset, New York 11767


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