Length quoted is hexagonal spacer length, the hexagon does not skid easily. It is used for PC motherboard, PC case, and other PCB board mount.
M4 Standoff
M3 Hex Carbon Steel Standoff Male Female Metric Thread Mount
uxcell M3x4mm+3mm Male-Female Brass Hex PCB Motherboard Spacer
uxcell 30PCS M4 x 5mm + 6mm Male-Female Thread Brass Spacer
uxcell 30PCS M4 x 5mm + 6mm Male-Female Thread Brass Spacer
Litorange 240 Pieces M3 Male Female Hex Brass Spacer Standoff
Pcb Spacer
M3 Hex Brass Standoff Male-Female Bolt Screw Nut Metric Threaded
Length quoted is hexagonal spacer length, the hexagon does not skid easily. It is used for PC motherboard, PC case, and other PCB board mount.
uxcell 50 Pieces M3 9+4mm Hex Standoff Spacer Male to Female Thread Brass Spacer Standoff Hexagonal Spacers Standoffs Screws Nuts for PC PCB
Spacer & Standoffs - WKOOA