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Solid Ceramic

Socket Cap Head Machine Screws & Bolts - U.S. Inch  | → Metric

stock ceramic Cap Socket Head fasteners - U.S. InchU.S. Inch Cap Socket Head solid ceramic bolts and machine screws are fully threaded. Our solid ceramic fasteners are ISO 9001-2015 manufacturer compliant and ideally suited for scientific instrumentation’s sensitive yet extreme environmental requirements.

Produced in the USA. Inventoried fasteners available for immediate shipment.

No Free Samples

*Available sizes, compositions and lengths vary and may be dependent upon material properties and performance characteristics. Please check our website for the most up-to-date information.

Socket cap head U.S. Inch fastener dimensional reference

To order fasteners:find the correct size, then select the composition you require.

    A B C
Size Composition Head Diameter Head Height Hexagon
Socket
Size Nom.
#0-80 alumina .091 - .096 .057 - .060 3/64"
zirconia
#2-56 aluminia .134 - .140 .083 - .086 5/64"
zirconia
#4-40 aluminia .176 - .183 .108 - .112 3/32"
zirconia
#5-40 aluminia .198 - .205 .121 - .125 3/32"
zirconia
#6-32 aluminia .218 - .226 .134 - .138 7/64"
zirconia
#8-32 aluminia .262 - .270 .159 - .164 9/64"
zirconia
#10-24 alumina .303 - .312 .185 - .190 5/32"
zirconia
#10-32 alumina .303 - .312 .185 - .190 5/32"
zirconia
1/4"-20 alumina .365 - .375 .244 - .250 3/16"
zirconia
1/4"-28 alumina .365 - .375 .244 - .250 3/16"
zirconia
5/16"-18 alumina .457 - .469 .306 - .312 1/4"
zirconia
3/8"- 16 aluminia .55 - .562 .368 - .375 5/16"
zirconia

Dimensions Per ANSI B18.3-1998

Important Information -Please Read

Alumina & zirconia (PSZ) fasteners

  1. 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 to 10 threads on any male fastener.
  2. No warranty with respect to torque strength and tensile strength is extended or implied. Ceramic materials are inherently brittle and display catastrophic failure if impacted or stressed beyond material limits.

Heat Resistant Corrosion Resistant Non-conductive Non Out-Gassing

Stock ceramic fasteners from Ceramco, Inc. Specializing in custom ceramic parts of complex geometries. Learn More.

Immediate Assistanceis only a phone call away. If you have any questions or require additional information, please call Ceramco at: +1 (603) 447-2090, Monday - Friday, 8:00 am - 4:30 pm, U.S. Eastern.