1. The data in the table above are not guaranteed and are only intended to inform customers how strong ceramic fasteners are. Exposing ceramic fasteners to the same forces typically exerted on metal fasteners is not recommended and may result in catastrophic failure.
2. "Destructive Torque" is the average maximum torque on hex head bolts until failure.
Strength Properties for Ceramco 99.8% Alumina Fully Dense Bolts
Ceramic Bolt Size
Destructive Torque (in*lb)
4-40
1.6
6-32
2.3
8-32
5.5
10-32
6.2
1/4-20
20.4
5/16-18
41.9
3/8-16
95
Mechanical properties testing of ceramic fasteners is done at Ceramco in order to provide practical data for design guideline purposes.
