PennEngineering's PEM spinning clinch bolts for thin metal panels are now available with a self-retracting feature allowing the fastener's captive screw to remain retracted when disengaged. A controlled clinching action permanently captivates the retractable screw-and-spring combination in the metal sheet during fastener installation. This allows the screw to spin freely for quick attachment of mating hardware. These spinning clinch bolts can permanently captivate into aluminum or steel sheets as thin as 1.02 mm. Installation is done by simply pressing the fastener into a properly sized mounting hole and then applying squeezing force on the top of the screw head and the underside of the sheet material. Various lengths and thread sizes are available.
Edited by: Filip Burm
