Tamper-evident screw caps PP Tamper-evident screw caps for Laboratory bottles with DIN thread. Temperature resistance: max. +140°C The integral plastic ring tears when the cap is first opened and is retained on the bottle neck. Therefore it can be clearly seen whether the bottle retains its original seal. After first untwisting, can be used as *normal* screw cap.
Product Specification: Neck thread: 45 GL Description: with PTFE silicone seal Diam.: 66mm Height: 38mm
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