Welcome to Scientific Specialties Inc.

Screw Caps - 2003-00



  • Caps offered with synthetic, silicone or with the super secure (GripSeal) molded seals.
  • Offered standard or tethered.
  • Large variety of cap colors to choose from.
  • Cap Insert Discs for added sample identification.
  • Threads – easy ¾ turn.
  • Temperature Range from -196°C to +121°C (not for immersion in liquid nitrogen).


  • GripSeal cap is molded out of polypropylene with an inert TPE sealing ring molded directly into cap.
  • Unique to the industry and compatible with all SSI microtubes.
  • Provides the safest, most secure leak-proof microtube seal on the market.
  • Rubber ribs on cap allow for effortless opening and closing.
  • Contrasting color strips on a white cap enable easy identification.
  • Wide variety of colors available.
Description Ring Type Translucent ColorsOpaque ColorsPackaging
insertable silicone o-ring n/a -40 white-51 blue-52 green-53 orange-54 red-55 violet-56 yellow-59 assorted 500 per unit, 10 units per case