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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-21572-603

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.

Certificates Product available on GSA Advantage®

Product Image-89202-610

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-60097-056

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-21572-658

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-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

Product available on GSA Advantage® Small Business Enterprise


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

Product available on GSA Advantage® Small Business Enterprise


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-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.

New Product


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-60005-036

Synthware Bosshead, Kemtech America

Supplier: Kemtech America
Description: Chrome plated finish with plastic-headed screws.

Minority or Woman-Owned Business Enterprise Small Business Enterprise

Product Image-470137-838

Boss Head, Double Large

Supplier: Wards
Description: Lab Aid, Many Uses

Product Image-470165-430

Premium Square Bosshead

Catalog Number: (470165-430)
Supplier: Wards
Description: All Metal Construction to Carry Heavy Loads and Prevent Torque Damage
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-470137-834

Eisco® Boss Head, Aluminum

Catalog Number: (470137-834)
Supplier: Wards
Description: Secure laboratory equipment and apparatus at right angles.
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.
Product Image-470165-428

Premium Bosshead with Universal Swivel

Catalog Number: (470165-428)
Supplier: Wards
Description: This bosshead can swivel 360°.
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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
  • Government issued document with your organization's Resale Tax ID Number
  • Any other Government ID that includes the business name and address


VWR will not lift restrictions for residential shipping addresses.

-Additional Documentation May be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organization. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
This product is currently unavailable but limited stock may be available in our extended warehouse network. Please call 1-800-932-5000 and a VWR Customer Service Representative will help you.
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