size:2-60ml color:amber or clear National Scientific has the largest offering of 12x32mm glass and plastic vials, inserts and closures in the industry. screw thread vials are the preferred choice for modern robotic autosamplers. Target DP, 11mm crimp top, 11mm crimp/snap, 8-425 and 10-425 screw thread vials are available as individual components as well as convenience kits that include vials, ...