250µL Glass Flat Bottom Insert for 2mL small opening Crimp Vials. Crimp Top Vials- - HPLC Autosampler Vials. Magnetic Crimp Cap at Thomas Scientific 11 mm crimp neck vials and caps commonly used in GC and HPLC 5.0 borosilicate crimp neck vial 40% larger opening. Target DP Autosampler Vials, Clear w/o Caps, 2.0 mL; 100/Pk. 40% larger opening