Solid Ceramic Fasteners

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ZTA (Zirconia Toughened Alumina) Fasteners Now Available - Complete List

Flat Washers Metric | U.S. Inch

stock ceramic flat washer - MetricHigh purity ceramic metric flat washers, as with all our ceramic fasteners, are ideally suited for high temperature and corrosive environments, or where electrical conductivity is a concern.

To Order Fasteners:
  1. Find the correct Size
  2. Click-on the Composition you require
  3. Available lengths displayed on next page
Metric flat washer dimensional reference

Available sizes, compositions and lengths vary and may be dependent upon material properties and performance characteristics.

    A B C
Size Com­posi­tion Inside Diam­eter Outside Diam­eter Thickness
M2 alumina 2.50 - 2.64 5.70 - 6.00 0.60 - 0.90
ZTA
zirconia
M3 alumina 3.50 - 3.68 9.64 - 10.00 0.80 - 1.20
ZTA
zirconia
M4 alumina 4.70 - 4.88 11.57 - 12.00 1.00 - 1.40
ZTA
zirconia
M5 alumina 5.50 - 5.78 14.57 - 15.00 1.20 - 1.75
ZTA
zirconia
M6 alumina 6.65 - 6.87 18.37 - 18.80 1.20 - 1.75
ZTA
zirconia
M8 alumina 8.90 - 9.12 24.48 - 25.40 1.60 - 2.30
ZTA
zirconia
M10 alumina 10.85 - 11.12 27.48 - 28.00 2.00 - 2.80
ZTA
zirconia
M12 alumina 13.30 - 13.57 33.38 - 34.00 2.50 - 3.50
ZTA
zirconia
M14 alumina 15.25 - 15.52 38.38 - 39.00 2.50 - 3.50
ZTA
zirconia
M16 alumina 17.25 - 17.52 43.38 - 44.00 3.00 - 4.00
ZTA
zirconia
M20 alumina 21.80 - 22.32 49.38 - 50.00 3.50 - 4.60
ZTA
zirconia

Dimensions Per ANSI B18.22M-1981, R2010 (Regular)

Material Properties Which is the best choice for your application?

Torque Values for applications dependent on specific torque or preload requirements.

Threads The pitch diameter of male threads will not exceed the max allowable according to Class 2. Minimum allowable pitch diameter may be below that of Class 2, conversely for female threads.

Due to shrink factor variances, the stack up tolerance cannot be controlled on the pitch. It is recommended that you not engage more than 5 threads on any male fastener

Notice Ceramic materials are inherently brittle and display catastrophic failure if impacted or stressed beyond material limits.

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