Rivet Nut Material and Head Style Selection

Rivet Nut Material and Head Style Selection

Rivet nuts vary widely in material and geometry. The right choice gives a reliable thin-sheet thread; the wrong one causes spinning, pull-out, leaks or uneven appearance. This article helps buyers and engineers choose by material and head style.

Three Common Materials

Carbon steel (10B21/35K) is strong, low-cost and zinc-plated—the general-purpose choice for cabinets and sheet metal. Stainless 304 resists rust for outdoor, damp, food and electrical use, at higher cost. Aluminum is light, non-rusting and compatible with aluminum panels, but lower strength for low-torque joints.

Match material to the panel: on aluminum, prefer aluminum or stainless to avoid galvanic corrosion with carbon steel.

Head Styles

Flat flange heads have large bearing surfaces and are most common, sitting flush on the front. Countersunk heads sink into prepared cones for smooth cosmetic panels. Reduced-flange heads fit thin sheets near edges. Choose by flushness requirements and edge distance.

Body Profiles

Smooth bodies suit soft panels (aluminum, plastic) and won't scratch. Vertical-grip bodies resist rotation on hard sheets. Hex bodies require a hex pilot hole and resist the most torque. Blind bodies seal the backside for watertight enclosures.

Selection Steps

First set panel thickness and grip range. Second choose flat/countersunk by surface. Third choose body profile by panel hardness and torque. Fourth choose material by environment. Drill the pilot hole per chart and install with a matching rivet gun.

The clinching nut range offers samples and selection charts.