Fastener Head Strength

Posted on: September 9th, 2019 by EditorP

High strength threaded fasteners are critical components in the assembly of virtually every form of transportation and industrial machinery. Industry accepted standards for the measurement and performance of these critical parts have existed for decades, but recent failures of threaded fasteners in service and qualification testing are bringing new focus to the critical area between the head and shank of the fastener. 

CBM member, The Phillips Screw Company has prepared a comprehensive White Paper exploring the issues, including the need to define a common metric and why it is a critical characteristic.

You can read more in the latest issue of Metal Matters – See the Metal Matters page for the latest September edition.

The full White Paper is available to CBM Members by logging in to the Fastener Members’ Section of this website.

If you are not a CBM member and would like to receive a copy of the White Paper, please email your request to

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