M3 Nylon Spacer Assortment Kit 100-Piece

Mounting a PCB or panel flush against a metal chassis risks unwanted electrical contact wherever a trace or solder joint touches the surface - a nylon spacer solves that by physically standing the board off the surface while also providing genuine electrical insulation, since nylon simply doesn't conduct the way a metal standoff would. Spanning 3mm to 24mm lengths in one kit covers most PCB and panel mounting clearance needs without needing to source individual spacer lengths separately.

RoHS-compliant nylon construction gives good mechanical strength for its weight class while maintaining the electrical insulation properties that are the entire reason to choose nylon over metal for this application, and clearance sized specifically for M3 screws matches the most common fastener size in hobbyist electronics assembly. Packaged in a plastic organizer box, the assortment stays sorted by length rather than becoming a loose pile of similar-looking parts.

Common uses are PCB standoff mounting where electrical isolation from the chassis matters, general electrical outlet and switch/receptacle spacing applications, and any assembly needing an insulating mechanical spacer rather than a conductive metal one.