Dec 21, 2007 · GC Autosampler Vials 2.0 mL, Clear glass, 6.0 mm opening, crimp top, silanized Aluminum, clear, 5.5 mm opening, PTFE/white silicone, 1.3 mm thick Phenolic Hole Cap. CRIMP CAP | Sigma-Aldrich Results 1 – 29 of 29 Synonym(s): Aluminum crimp seal (without se