Vial, 8-425 screw top, glass, clear, PTFE-lined solid storage cap, 2 mL, 100/pk. 2 mL Standard Opening (8 mm) Vials. USD. SubCat3ECS_31740. Screw Top. $54.80. 5190-4031. Vial, clear, screw cap, write-on spot, 2 mL, 100/pk. 2 mL Standard Opening (8 mm) Vials.