Allows permanent joining of two metal sections and metal to PCB/plastic panels
Alternative to riveting and welding.
No special installation equipment required.
Flush mounted on both sides.
Minimal space requirements.
Can be installed blind into bottom (panel 2) sheet.
Can be concealed with paints and powder coatings.
The PEM® SpotFast® self-clinching fastener creates a permanent, flush joining of two sheets. The RoHScompliant fasteners install 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. Type SF, SFP, and SFW fasteners can attach two metal sheets too thin to weld; fasten sheets of unequal thicknesses; join dissimilar metals unable to be welded; and even attach ultra-thin metal sections. Type SFP fasteners are made from precipitation hardened stainless steel for installation into stainless steel sheets where corrosion resistance may be required. Type SFW is specifically designed to allow pivoting of two sheets of metal. A wave washer provides the consistent torsion to allow repeatable rotation.
Type SFK fasteners create a permanent, flush joining of metal to PCB/plastic panels. The fastener has two separate joining profiles. Squeezing the fastener into place causes a cold-flow of the metal panel material into the fastener’s clinch profile and a broaching fit of the knurl into the PC Board or plastic panel.
Unlike rivets that “bulb” during installation, the ultimately flush profile of SpotFast fasteners allows for unobtrusive attachment requiring minimal space. A smooth surface is retained for finishing and fasteners can be concealed easily with paints or powder coatings.
(6)High strength, threaded fastener designed for aluminum extrusions
High strength, threaded fastener for aluminum tubing
Designed with a double clinch feature on both ends, TBA™ and TBFA™ (flange style) fasteners firmly lock into place in the aluminum tube during installation.
Designed for square or rectangular aluminum tubing
Connects two sides of the tubing
High strength thread (meets Class 10 proof load requirements when the effective thread depth is greater than 1.5 times the major diameter), and high torque resistance
Improve the strength and Noise, Vibration, and Hardness (NVH) performance
Installs into round holes
This datasheet showcases custom-designed parts developed for square and rectangular aluminum
tubing. Samples of these solutions are available from stock.
The datasheet illustrates PennEngineering’s expertise in creating strong, reliable threads in tubing
applications. Since dimensions may vary with tube size and wall thickness, our engineering team can
help tailor the design to your specific needs. Contact us to explore the best solution for your application.
Note: Additional sizes available on special order. Contact us for availability.
