Solid Ceramic Fasteners

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

Phillips Pan Head Machine Screws & BoltsU.S. Inch  |  Metric

stock ceramic pan head phillips fasteners - U.S. InchHigh purity ceramic oxide U.S. inch pan head Phillips bolts and machine screws, as with all our ceramic fasteners, provide high temperature stability in electrical or thermal insulating applications and possess a low thermal conductivity.

To Order Fasteners:
  1. Find the correct Size
  2. Click-on the Composition you require
  3. Available lengths displayed on next page
Pan head phillips U.S. Inch fastener dimensional reference

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

    A B C
Size Com­posi­tion Head Diam­eter Head Height Head Radius
#0-80 alumina .104 - .116 .036 - .044 .005 Min
ZTA
zirconia
#2-56 alumina .155 - .167 .053 - .062 .010 Min
ZTA
zirconia
#4-40 alumina .205 - .219 .070 - .080 .010 Min
ZTA
zirconia
#5-40 alumina .231 - .245 .079 - .089 .015 Min
ZTA
zirconia
#6-32 alumina .256 - .270 .087 - .097 .015 Min
ZTA
zirconia
#8-32 alumina .306 - .322 .105 - .115 .015 Min
ZTA
zirconia
#10-24 alumina .357 - .373 .122 - .133 .020 Min
ZTA
zirconia
#10-32 alumina .357 - .373 .122 - .133 .020 Min
ZTA
zirconia
1/4"-20 alumina .473 - .492 .162 - .175 .035 Min
ZTA
zirconia
1/4"-28 alumina .473 - .492 .162 - .175 .035 Min
ZTA
zirconia
5/16"-18 alumina .594 - .615 .203 - .218 .040 Min
ZTA
zirconia
3/8"- 16 alumina .716 - .740 .244 - .261 .040 Min
ZTA
zirconia

Dimensions Per ANSI B18.6.3-1972 (R1991)

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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