Solid Ceramic Fasteners

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

Hex Head Machine Screws & BoltsU.S. Inch  |  Metric

stock ceramic hex fasteners - U.S. InchU.S. Inch hex head high purity ceramic bolts and machine screws, as with all our ceramic fasteners, are engineered for corrosive environments, as well as applications with unique biocompatibility or high wear requirements.

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

ANSI hex head size #5-40 and larger have a washer head face. ANSI hex head size #4-40 and smaller do not have a washer head face.

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

    A B C
Size Com­posi­tion Head
Flat-to-Flat
Head
Point-to-Point
Head
Height
#0-80 alumina .120 - .125 .171 min. .043 - .050
ZTA
zirconia
#2-56 alumina .120 - .125 .134 min. .040 - .050
ZTA
zirconia
#4-40 alumina .181 - .188 .202 min. .049 - .060
ZTA
zirconia
#5-40 alumina .181 - .188 .202 min. .058 - .070
ZTA
zirconia
#6-32 alumina .244 - .250 .272 min. .080 - .093
ZTA
zirconia
#8-32 alumina .244 - .250 .272 min. .096 - .110
ZTA
zirconia
#10-24 alumina .305 - .312 .340 min. .105 - .120
ZTA
zirconia
#10-32 alumina .305 - .312 .340 min. .105 - .120
ZTA
zirconia
1/4"-20 alumina .425 - .438 .484 min. .150 - .188
ZTA
zirconia
1/4"-28 alumina .425 - .438 .484 min. .150 - .188
ZTA
zirconia
5/16"-18 alumina .484 - .500 .552 min. .195 - .235
ZTA
zirconia
3/8"- 16 alumina .544 - .562 .620 min. .226 - .268
ZTA
zirconia

Dimensions Per ANSI B18.6.7M-1985

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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