Anti cross-threading

Michael Rossi, PennEngineering, says that it "provides added value by correcting off-angle installations, aligning components, and easily sliding through potentially clogged internal threads". Two types of panel fastener are offered: the PF11MF with knurled cap, which is said to meet 'operator access area' requirements, and the PF12MF with smooth cap, which meets 'service access area' requirements. Thread sizes range from M3 to M6. "The anti cross-thread feature promotes quick installation. As threads come into contact, the anti cross-thread begins to cam over the female head, the two thread helixes align, and the fasteners drive quickly and properly with reduced effort. The fasteners install flush on the back side of a panel using minimal squeezing force with punch and anvil to flare their retainer. A shoulder on the retainer provides a positive stop which promotes easier installation and improved performance. "They are suitable for centreline-to-edge applications and will not mar painted surfaces", reports Michael Rossi.