1.5mL Clear Screw Neck Vial w/Write-on Spot, 9-425 Thread, 11.6*32mm. Athena 1.5mL Clear Screw Neck Vial w/Write-on Spot, 9-425 Thread, 11.6*32mm, USP type 1 . Features. 1)9mm screw vials can be used on all common autosampler. 2)Standard narrow neck design for GC and HPLC. 3)9mm wider opening for easy puncture. 4)Clear, type 1 class A