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Alumina

Std Sizes & Head Styles
Metric Sizes & Head Styles
Strength Properties
Fastener Material Properties

Zirconia

Std Sizes & Head Styles
Fastener Material Properties

Dimensional Specifications
Limitations
Lead Time
FAQs

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Notes

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.

Alumina Machine Screws, Alumina Nuts, Alumina Bolts & Washers

Fully Dense 99.8% Aluminum Oxide Material
Manufactured Per ANSI B 18.6.3-1972 (R1991)
Fully Threaded Ceramic Screws, Ceramic Bolts, Ceramic Nuts
Alternate Ceramic Head Designs
Also Available in Zirconia (PSZ)

Standard ceramic fastener sizes and head styles currently available in alumina:

Ceramic Fastener Size	Hex	Pan	Flat	Socket Cap	Flat Socket	Phillips Pan
0-80* (0.25" max)	·	·	·	·	·
2-56 (0.5" max)	·	·	·	·	·
4-40 (1.0" max)	·	·	·	·	·
5-40 (1.0" max)	·	·	·	·	·
6-32 (1.0" max)	·	·	·	·	·
8-32 (1.5" max)	·	·	·	·	·	·
10-24 (1.0" max)	·	·	·	·	·	·
10-32 (1.75" max)	·	·	·	·	·
1/4-20 (3.0" max)	·	·	·	·	·
5/16-18 (3.0" max)	·	·	·	·	·
3/8-16 (3.0" max)	·	·	·	·	·

All of the listed ceramic screw sizes have matching ceramic washers and ceramic nuts available.
Desired ceramic screw lengths are cut from 1/4" to the maximum length listed in 1/4" increments.
Ceramic head styles that are not checked off or listed can be custom made to order, and may include a tooling charge.

Limited quantities of all items listed are in stock. Please enquire for pricing and delivery leads on larger quantities. Minimum order 10 pieces. Volume discount schedule applies as follows:

25-49 pcs: 10%
50-99 pcs: 15%
100-249 pcs: 20%
250+ pcs: 25%
No discount on washers.

See Notes.

Dimensional Specifications