Screw Thread Tube (GL) – Borosilicate 3.3

Our **Screw Thread Tubes (GL)** are precision-engineered laboratory components designed for high-performance sealing and versatility. Manufactured from high-quality **Borosilicate Glass 3.3**, these tubes offer exceptional thermal and chemical resistance. Designed as **glass articles for further processing**, they are ideal for glassblowers creating custom apparatus or for use as reliable storage vessels. These tubes are supplementary to **DIN 12216** standards, ensuring dimensional accuracy and reliability.

Key Technical Features:

• Premium Material: Manufactured from **Borosilicate Glass 3.3**, ensuring low thermal expansion and high resistance to chemical attack.
• DIN Standard Compliance: Produced supplementary to **DIN 12216**, guaranteeing high precision in thread geometry and glass quality.
• Grease-Free Working: The precision GL thread allows for safe, airtight sealing without the need for stopcock grease, preventing sample contamination.
• Safe Operation: Engineered for **safe and easy sealing and loosening** of glass-glass components and caps, reducing the risk of jamming or breakage during use.
• For Further Processing: These tubes serve as excellent base components for glass workshops, allowing them to be fused onto flasks, reactors, or custom lab setups.

Available GL Thread Sizes:

We stock a complete range of sizes to suit various custom apparatus and storage requirements:

• GL 14 & GL 18: Standard sizes for test tubes and small connections.
• GL 25 & GL 32: Ideal for medium-volume applications.
• GL 45: Wide-mouth design for easy access and larger setups.

Buy ISO Standard Screw Thread Tubes

Whether for direct laboratory use or **further processing** in glass workshops, our **Screw Thread Tubes** provide the quality you need. Contact us today for pricing on these essential **Laboratory Glass Components**.