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Concealed-head Studs and Standoffs Enable Smooth and Sealed Thin-metal Assemblies

Mon, 01/23/2012 - 12:34pm
studs and standoffsPEM self-clinching concealed-head studs and standoffs provide strong, permanent, and reusable threads for mating hardware in thin-metal assembly applications. Their unique concealed-head feature offers design and esthetic benefits by allowing the side of the sheet opposite installation to remain smooth and untouched. This feature additionally serves as an appropriate solution for applications where the host metal sheet must remain completely sealed from air, liquid, dust, gases, or other potential contaminants. Concealed-head studs and standoffs install permanently in steel or aluminum sheets as thin as .062”/1.6 mm. Studs (aluminum or stainless steel) are available in thread sizes #4-40 through #10-32 and M3 through M5 and in lengths from .250” through 1” and 6 mm through 25 mm. Standoffs (stainless steel) are offered in thread sizes #4-40 through 1/4-20 and M3 through M6 and in lengths from .187” through 1” and 4mm through 25 mm.

Sheet preparation for their installation requires only a blind milled hole to the recommended minimum depth. Using a PEMSERTER® or other standard press, installation is quick and easy by placing the fastener in the hole and applying sufficient squeezing force. The fastener head then locks securely in the sheet and can handle substantial loads. These fasteners are RoHS-compliant and some stud types meet NASM63540 specifications. 

Penn Engineering  
800-237-4736, www.pemnet 
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