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You Searched For: Bossheads

Bossheads are essential parts to complete the laboratory retort stand construction for titration, filtration, or distillation experiments. With two screw clamps, bossheads attach to the vertical rod supported by the apparatus base and simultaneously securely hold the sample. All designs are lightweight and durable for testing longevity and come in a variety of finishes. Some are designed to fit the standard rod diameter, while others have more flexibility in sizes. Rotating designs allow any angle to be achieved.

Bossheads are essential parts to complete the laboratory retort stand construction for titration, filtration, or distillation experiments. With two screw clamps, bossheads attach to the vertical rod supported by the apparatus base and simultaneously securely hold the sample. All designs are lightweight and durable for testing longevity and come in a variety of finishes. Some are designed to fit the standard rod diameter, while others have more flexibility in sizes. Rotating designs allow any angle to be achieved.


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Product Image-12621-246

VWR® Talon® S-Connectors

Supplier: VWR International
Description: Clamp is ideal for constructing lab frames or other supports requiring the connection of two perpendicular rods.

Product available on GSA Advantage®

Product Image-21572-501

VWR® Talon® Regular Clamp Holder

Supplier: VWR International
Description: Features a streamlined design for maximum contamination resistance and easy cleaning.

Product available on GSA Advantage®

Product Image-21572-658

VWR® Talon® All-Position Clamp Holder

Catalog Number: (21572-658)
Supplier: VWR International
Description: Surpass standard holding capabilities with this all-position clamp holder.

Certificates Product available on GSA Advantage®


Product Image-89202-628

VWR® Talon® Swivel Holder

Supplier: VWR International
Description: Two Q-clamp post holders with center swivel capacity allow tilting of clamp at any angle in parallel planes.

Product available on GSA Advantage®

Product Image-47750-928

SP Bel-Art Bosshead, Bel-Art Products, a part of SP

Catalog Number: (47750-928)
Supplier: Bel-Art Products, a Part of SP
Description: This open-sided stainless steel bosshead accepts rods up to 13 mm (½") diameter.
Product Image-89084-750

Clamp Holder, Jumbo, Ace Glass Incorporated

Catalog Number: (89084-750)
Supplier: Ace Glass
Description: This clamp holder is great for holding large and heavy assemblies, since it can grip rods or pipe up to 22 mm in diameter, or as small as 5 mm

Small Business Enterprise Product available on GSA Advantage®


Product Image-89084-746

Clamp Holder, Nickel-Plated Zinc, Ace Glass Incorporated

Catalog Number: (89084-746)
Supplier: Ace Glass
Description: This clamp holder is normally used to secure clamps to rods and lab frame supports

Small Business Enterprise Product available on GSA Advantage®


Product Image-470165-422

Premium Diecast Bosshead

Catalog Number: (470165-422)
Supplier: Wards
Description: Threaded Metal One-Piece Clamping Screws
Product Image-470165-426

Premium Heavy-Duty Bosshead

Catalog Number: (470165-426)
Supplier: Wards
Description: Thicker Than Normal 7 mm Threaded Clamping Screws
Product Image-470231-448

Universal 2 Prong Clamp with Bosshead, Eisco Scientific

Catalog Number: (470231-448)
Supplier: Wards
Description: A versatile clamp to securely grip a variety of cylindrically shaped glass and labware.
Product Image-470137-832

Boss Head, Square

Catalog Number: (470137-832)
Supplier: Wards
Description: Perfect for Physics
Product Image-470165-424

Premium Bosshead

Catalog Number: (470165-424)
Supplier: Wards
Description: Great for Connecting Rods and Apparatus in Tight Places without Sacrificing Strength
Product Image-470165-428

Premium Bosshead with Universal Swivel

Catalog Number: (470165-428)
Supplier: Wards
Description: This bosshead can swivel 360°.
Product Image-470137-826

Boss Head, Right Angle

Catalog Number: (470137-826)
Supplier: Wards
Description: Securely holds rods at a 90 degree angle.
Product Image-470356-228

Eisco Test Tube Holder Clamp on Swivel Bosshead

Catalog Number: (470356-228)
Supplier: Wards
Description: Versatile swivel bosshead test tube clamp holder to increase user friendly operations.
Product Image-470137-842

Boss Head, Double Swivel

Catalog Number: (470137-842)
Supplier: Wards
Description: Our swiveling boss head allows you to hold two rods at any angle.
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
You must log in to order restricted items. We request that you provide the required business documentation to purchase this product for the first time.

To order chemicals, medical devices, or other restricted products please provide identification that includes your business name and shipping address via email CMD_NA@vwr.com or fax 484.881.5997 referencing your VWR account number . Acceptable forms of identification are:

  • issued document with your organization's Federal Tax ID Number
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  • Any other Government ID that includes the business name and address


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