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PEEK Metric Flat Washers - ISO 7089

SKU: PKWAM14
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PEEK Metric Flat Washers conforming to ISO 7089 are engineered for demanding applications requiring exceptional mechanical strength, thermal stability, and chemical resistance. Manufactured from high-performance Polyether Ether Ketone (PEEK), these washers provide reliable load distribution and surface protection while maintaining their mechanical properties in extreme operating environments.

Designed for use with metric fasteners, PEEK flat washers help distribute clamping forces evenly, reduce surface damage, and improve joint integrity. Their outstanding dimensional stability, low moisture absorption, and resistance to aggressive chemicals make them ideal for aerospace, semiconductor, medical, and chemical processing applications where conventional plastic washers may be unsuitable.

Key Features

  • Manufactured from high-performance PEEK polymer
  • Conforms to ISO 7089 specifications
  • Continuous service temperature up to 500°F
  • Excellent chemical and corrosion resistance
  • Outstanding mechanical strength and stiffness
  • Exceptional dimensional stability and creep resistance
  • Low moisture absorption
  • High wear and fatigue resistance
  • Reliable load distribution and surface protection
  • Lightweight, non-magnetic, and electrically insulating

Available in various metric sizes. 
  • Type Washers
  • SKU PKWAM14
  • Material Polyether Ether Ketone (PEEK)
  • Color
    • Beige
  • Measurement System Metric
  • ISO Standard ISO 7089
  • DIN Standard DIN 125 A

Material: PEEK 450G (Polyether Ether Ketone)

Maximum Temperature: 500°F

Flammability: UL94 V-0

Tensile Strength: 97MPa

Return components within 90 days for a full refund. Please see our returns terms and conditions for further information.
Flat Washer Dimension Table (ISO7089/DIN125A)
M Size Inside Diameter (mm) Inside Diameter (inch) Outside Diameter (mm) Thickness (mm)
M1.6 1.7 0.0669291 3.7 0.25
M2 2.1 0.0826772 4.0 0.5
M2.6 2.7 0.106299 6.0 0.5
M3 3.2 0.125984 7.0 0.5
M4 4.3 0.169291 9.0 0.8
M5 5.3 0.208661 10.0 1.0
M6 6.4 0.251969 12.5 1.6
M8 8.4 0.330709 17.0 1.6
M10 10.5 0.4133858 21.0 2.0
M12 13.0 0.511811 24.0 2.5
M16 17.0 0.669291 30.0 3.0

PEEK 450G (Polyether Ether Ketone)

Key Properties & Applications
Properties Applications

- High temperature operation (500°F)
- Low outgassing in a vacuum
- Flame Resistant
- High Tensile Strength (97MPa)

- Aerospace
- Life Sciences
- Medical Equipment
- Telecommunications

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