Lid Screws - Atmosphere, Poseidon and Triton

Lid Screws for Atmosphere, Poseidon and Triton Holders Screws are holder specific. Options: Set of 50 brass screws -  for Atmosphere, Poseidon and JEOL-compatible Triton holders.  Pro tip: Brass screws are softer than the holder lid material and should be replaced once threading begins to show signs of wear or stripping.  Set of 4 screws - For Thermo Fisher-compatible Triton holders ONLY. Includes 2 stainless steel fillister screws and 2 titanium flathead screws.  Pro Tip: Regular replacement and the complete removal of screws during holder tip assembly/disassembly are not required.