Pem® Concealed-Head Studs and Standoffs Install Permanently and Promote Smooth Designs

Clinch Fastener Solutions For Thin-Metal Assemblies

PEM® self-clinching concealed-head studs and standoffs install permanently in steel or aluminum sheets as thin as .062" / 1.6mm to provide strong and reusable threads for mating hardware in a wide range of thin-metal assembly applications. Their concealed-head feature contributes particular design benefits by allowing the side of the sheet opposite installation to remain smooth and untouched. This feature additionally serves to satisfy applications where the sheet must remain completely sealed from air, liquid, dust, gases, or other potentially infiltrating elements.

The aluminum or stainless steel studs are available in thread sizes 4-40 through 10-32 and M3 through M5 and in lengths from .250" through 1" and 6mm through 25mm. Stainless steel standoffs are offered in thread sizes 4-40 through ¼-20 and M3 through M6 and in lengths from .187" through 1" and 4mm through 25mm.

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 accomplished 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. Detailed specifications (Bulletin CH) and free part drawings (PEM CAD Library) can be accessed at


Michael J. Rossi,


5190 Old Easton Road, Danboro,

PA 18916-1000 USA.

Phones: 800-237-4736 (toll-free in the U.S.) or 215-766-8853;

Fax: 215-766-0143.

Web site:

Contact This Company

More from Fasteners & Hardware

All Topics

COVID-19 Response Suppliers COVID-19 Response:
Can Your Company Help Provide Critical Supplies?

We are using the power of our platform to aid in the mass shortage of critical supplies. If your company can help provide supplies, capabilities, or materials for products such as N-95 Masks and Tyvek SuitsPlease let us know.

COVID-19 Response Suppliers