Penn Engineering & Manufacturing Corp.

Pem Management, Inc.

Robert P Smith

Michael Mahoney

Michael J Maloney

A clinch fastener with a single-element, unitary construction that does not require the preassembly of parts. The fastener provides a clamp load after installation and is fully formed by stamping the part from sheet metal. The fastener provides the necessary rigidity for a clinch attachment shank with the resilience of a head that will provide a residual clamp load to the attached panels. The fastener attaches two panels face-to-face by extending through aligned apertures in the panels. A shank undercut receives the cold flow of material from the second bottom panel while the panels are clamped against a resilient dome-shaped head of the fastener. The fastener may include a central axial well that receives the tip of a press punch during installation.

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New Tripoli, PA, United States of America

Robert P Smith