Quick Answer: The Clamp - Four Prong Cork Lined is a powder-coated zinc alloy laboratory clamp whose four cork-lined prongs open to a maximum of 10.5 cm, with a fitting for rods up to 18 mm in diameter.
Last updated: October 2026
Key Features
Four prongs lined with cork for a cushioned, slip-resistant hold
Holds apparatus measuring up to 8.5 cm; maximum opening 10.5 cm
Fits support rods up to 18 mm in diameter
Powder-coated zinc alloy: non-ferrous and rust free
Screw adjustment and thread-fitted actuating joints for controlled gripping pressure
Technical Specifications
Specification
Value
Maximum clamp opening
10.5 cm
Apparatus accepted
Up to 8.5 cm
Rod diameter
Up to 18 mm
Material
Powder-coated zinc alloy
Prongs
4, cork lined
About This Product
This clamp secures beakers, Erlenmeyer flasks, test tubes, boiling flasks and burettes to a frame or other apparatus. The adjusting screw lets the user set the pressure on glass objects precisely, which helps to avoid breakage. The cork lining means the prongs are not recommended for placing in direct heat.
Frequently Asked Questions
Q1. Can the prongs be placed in direct heat? This is not recommended, because the prongs are lined with cork.
Q2. What size of rod does the clamp fit? It accommodates rods up to 18 mm in diameter.
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