COCM Countersunk, Smooth, Full Metric Rivet Nut | Sherex® by PEM® Flush Finish Fasteners
COCM – Countersunk, Smooth, Full Metric Round Body Rivet Nut
The COCM is a countersunk, smooth body, full metric rivet nut from Sherex® by PEM®, engineered to provide a flush installation in applications where the fastener must not protrude above the material surface. The countersunk flange seats fully within a pre-formed countersink, creating a clean, level surface finish once installed.
Available in open end and closed end options.


Product Specifications
- Body style: Smooth, round body
- Flange: Countersunk
- Thread sizes: M3, M4, M5, M6, M8, M10, M12 (metric)
- Material: Steel (zinc plated) / Stainless steel
- Requires countersunk hole preparation in host material
- Available in open end and closed end
- Installs with standard Sherex by PEM installation tools

Key Benefits
- Flush surface installation for aesthetic and aerodynamic applications
- Eliminates protrusion that could affect mating component clearance
- Single-sided installation as with all Sherex by PEM rivet nuts
- Available in steel and stainless steel for different environments
➤ Download the COCM data sheet or request specification support from Sherex by PEM.