CHA-M3-8 by PENN ENGINEERING

These aluminum concealed-head studs are expertly engineered to establish high-strength, permanent mounting threads within thin metal sheets by locking the fastener head completely inside a blind, milled hole. When installed using basic press compression, the displaced panel material flows smoothly into the undercut, enabling the lightweight stud to handle substantial loads. Because the head is anchored entirely inside the panel thickness, the side of the metal sheet opposite the installation remains completely smooth, unmarred, and flawlessly sealed against air, liquid, dust, and gases.

Concealed-Head Construction: Installs directly into a blind, milled hole so that the reverse side of the panel sheet remains completely flush, smooth, and unblemished.

Environmental Ingress Protection: Leaves the external face of the sheet fully closed and untouched, keeping it perfectly sealed against infiltration of dust, liquid, air, or gases.

High Load Capacity: Utilizes a self-clinching undercut that locks under press compression to reliably support significant pull-out and torque loads.

Lightweight Efficiency: Manufactured from aluminum, offering an ideal high-strength threading solution for weight-sensitive applications.