... caps.Specifications--1. 1/2 dram slim--12 mm X 35 mm, 1/2 Dram, 2 ml Screw Thread ... screw thread glass vials.3. 1 dram --15 mm X 45 mm, 1 Dram, 4 ml Screw Thread ... Size 13-425.4. 1.5 dram - 16 mm X 50 mm, 1 1/2 Dram, 6 ml Screw Thread ... with polypropylene foam liner caps5. 2 dram--17 mm X 60 mm, 2 Dram, 8 ml ,1/4oz ... polypropylene foam liner caps.6. 4 dram--20 mm X 70 mm, 4 Dram, 15 ml Screw Thread with ...