Metal-like performance from a light weight plastic

Polyamide-imide or Torlon® flat head screws are one of the strongest and toughest polymer screws available. Having the highest strength and stiffness of any pure thermoplastic up to 275°C (525°F), Torlon screws are geared for the most demanding mechanical and high temperature applications. Torlon flat head screws also have outstanding resistance to wear, creep and most chemicals.

Torlon flat head screws are available in a glass fiber reinforced grade which improves the strength, modulus and creep resistance. Because of the outstanding mechanical properties of Torlon screws, they can be used as a replacement for metal screws some applications. 

Torlon flat head screws are available in both metric and standard sizes. Please contact us if you have any questions about Torlon screws, their characteristics and their availability.

Screws made from customer specified polyamide-imide grades are available upon request.

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


Torlon Flat Head Screw Features and Benefits

Torlon flat head screws are characterized by having a head with a top flat surface (which can feature either a slotted, phillips or allen driver) and bottom that is cone shaped or countersunk. With this design, the head of the screw can align flush or below the surrounding surface having obvious benefits.

Torlon Slotted vs. Phillips Driver 

 Slotted Head Advantages Phillips Head Advantages 
  • Slotted head screws tend to strip less than Philips, especially in harsh environments
  • Slotted heads are typically better in applications where it's going to be unscrewed and re-done periodically, as the head tends to wear less.

  • In dirty environments, a flat head is much easier to clean out

  • Phillips head offers a much stronger joint since it can tolerate more torque.

Countersink Angle

For most flat head screw designs the angle of countersink is usually 82° for UNC and UNF applications however other angles ranging from 60° -120° could be specified. 

Thread Type Normal Flat Head Countersink Angle

UNC / UNF

82°

Aerospace 100°
ISO Metric / Imperial 90°

 


Torlon Properties     

      

Torlon Mechanical Properties

Torlon Tensile Data


Torlon Properties  

Chemical Resistance of Torlon

Torlon Corrosion Resistance

 

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