Outstanding chemical resistance at elevated temperatures

  • Virtually inert to most organics, acids and basesPTFE socket head cap screw
  • Usable up to 260°C / 500°F but weakens significantly
  • Excellent electrical insulator
  • High purity for sensitive pharmaceutical and food type applications
  • PTFE socket head cap screw features and benefits

PTFE socket head cap screws are made from the fluoropolymer polytetrafluoroethylene and are known for being exceptionally corrosion resistant and inert at elevated temperatures. PTFE socket head cap screws are inert to most chemical environments including organics, acids, bases, mixed chemicals and hyrdofluoric acid. Additionally PTFE socket head cap screws are bio-inert and will not leach into or contaminate sensitive pharmaceuticals or food based products.

Compared to other high performance polymer socket head cap screws like PEEK or PVDF, PTFE socket head cap screws offer the best all-around corrosion resistance especially at elevated temperatures. However the trade-off for its extraordinary corrosion resistance is the lower tensile strength compared to PVDF or PEEK socket head cap screws.

Screw TypesFlat Head ScrewsHex Cap ScrewsPan Head ScrewsSet ScrewsSocket Head Cap Screws 


PTFE Socket Head Cap Screw Features and Benefits

When it comes to PTFE socket head cap screws, it’s all about clearance. These screws are the best choice for applications with limited installation access or clearance. Yet if you have an application with a lot of debris, you may want to select a PTFE hex head bolt or hex head cap screw, as they don’t have a socket drive which could get clogged.

Advantages:

  • Ideal for applications with limited access as they require very little clearance around the fastener.
  • Socket head cap screws can be used in locations where externally wrenched fasteners aren't desirable.
  • Weight reduction on application as PTFE socket head cap screws are smaller – being that the cylindrical heads of socket screws need less space than hex heads and require no additional wrench space.
  • Also known for safety, reliability and economy.

 


Mechanical Data

PTFE Stress vs Strain @ Various Temps.   

 PTFE Tensile Data


PTFE Properties

PTFE Properties

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