SpotFast Fasteners

The PEM SpotFast' self clinching fastener from Pennfngineering' allows pivoting of two sheets of metal. A wave washer provides the consistent torsion to allow repeatable hinging. The fastener installs smooth with the top sheet, and flush or sub-flush with the bottom sheet. Squeezing the fastener into place causes a cold-flow of panel material into the fastener's two separate clinch profiles. This fastener is capable of joining two dissimilar metals, including unequal thicknesses.

• Alternative to riveting
• Washer allows pivoting with consistent force
• Standard parts install into sheets as thin as .031"/0.8mm
• Flush mounted
• Minimal space requirements
• Can be installed blind into bottom (Panel 2) panel
•  Can join dissimilar metals
• RoHS compliant

• Punch or drill properly sized mounting hole in both panels. Do not perform any secondary operations such as deburring
• Using only Panel 1, with the punch and anvil surfaces parallel, apply squeezing force until the fastener is flush with the top of Panel 1
• Place washer over installed fastener (concave side facing up), then place Panel 2 over fastener. Apply squeezing force. Keep .015-.020" / 0.38-0.51 mm nominal gap between two sheets after installation