About Thornton Plastics Company
- Thornton Plastics manufactures 14 sizes of clear plastic vials with snap cap lids. The vials range in size from .13 oz. to 6.25 oz. (4 ml to 185 ml). Thornton Plastics also manufactures 2 sizes of polypropylene hinged lid vials. These 2 sizes are .16 oz and 1.6 oz (5 ml and 50 ml).