Round Body Rivet Nuts | Sherex by PEM Universal Fasteners
Round Body Rivet Nuts
Sherex® by PEM® round body rivet nuts represent the most widely used rivet nut design, offering reliable performance across the broadest range of materials, sheet thicknesses, and applications. The cylindrical body installs into a simple round drilled or punched hole, making preparation straightforward and suitable for virtually any sheet material.
With the widest variety of thread sizes (M3 - M16 and unified equivalents), flange styles (large, small, countersunk), and material options in the Sherex® by PEM® range, round body rivet nuts are the starting point for most blind fastening specifications. Sherex® by PEM® also features Optisert®, the best-performing round body rivet nut on market today.
Round body rivet nuts are installed with standard rivet nut tooling.
Key Features
- Installs into a standard round hole — no special hole preparation required
- Broadest range of thread sizes from M3 to M16
- Available with standard, large, and low-profile flange configurations
- Open-end and closed-end (sealed) variants for different environments
- Material options include steel, stainless steel, and aluminium, brass, and Monel
- Multiple plating options for corrosion resistance
- Compatible with the full range of Sherex by PEM installation tools
Typical Applications
- General industrial assembly across all sectors
- Automotive, commercial vehicle, and agricultural equipment
- Electronics and data centre hardware
- HVAC systems and building services installations
- Any application requiring a reliable thread in thin-sheet material
Product Series
The Sherex® by PEM® round body range includes CAL (knurled body, large flange), CAK (knurled body, small flange), COLM (smooth body, large flange), COKM (smooth body, small flange), CKLM (full metric body, knurled, large flange), and CKKM (full metric body, knurled, small flange), CPB (prebulbed, slotted body) CPN (straight shank, slotted body) and Optisert® series. Each series covers multiple thread sizes and grip ranges. Refer to individual product pages for dimensional data and installation specifications.
Optisert® (knurled body, underhead wedges)
CKLM (full metric body, knurled, large flange)
CKKM (full metric body, knurled, small flange)
CAL (knurled body, large flange)
CAK (knurled body, small flange)
COLM (smooth body, large flange)
COKM (smooth body, small flange)
CPN (straight shank, slotted body)
