• Special Screws
  • Plastic Screws


Plastic Screws - Hex Head Screws - PFA

  • Heat-resistance
  • Chemical-proof

Dimension Drawing

SPFA-HPlastic Screws - Hex Head Screws - PFA寸法図

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L B L1 a t Tension Rupture
Load (N)*1
Qty per Pack Mass
SPFA-M8-20-H M8 1.25 20 13 5.5 1.6 2.8 494 0.44 5 3.5 49.03 CAD Cart

*1: Values in chart are for reference only. They are not guaranteed values. The recommended tightening torque is 50% of the torsional torque.

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  • PFA is a plastic with excellent heat resistance, electrical properties, chemical resistance, and abrasion resistance. Most chemicals cannot penetrate PFA.
  • It has excellent non-adhesive and lubrication properties.
  • It also has high flame retardance which clears the UL 94 V-0 standard.
  • The properties and precautions of plastic screws⇒Plastic Screws


Main Body PFA (Perfluoroalkoxy Alkane) (Milky White)
Heat Resistance Temperature*1 260℃

*1: This is the value for the resin material. The operating temperature of the product changes with performance conditions such as tightening torque.

Related Services


FPD production equipment / Semiconductor devices / Printed circuit board etching devices /
Metallic surface treatment equipment and facilities / Chemical plants

Precautions for Use

Because a cumulative pitch difference is created when PFA screws are manufactured, use these screws with nuts. If a nut is not used, use a 20 mm or less fit with female thread.

Related Products

SPFA-N Plastic Hex Nut (PFA) is available.

SPFA-HPlastic Screws - Hex Head Screws - PFA

Product List

Click here to see SPFA-M8-H

Click here to see SPFA-H

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