Our standoff screws are widely used in computers, computer cases, circuit board assembly, electronic fields, etc. The PCB standoffs play a supporting, isolating and fastening role in the use.Specification Material: NylonThread: M2 M2.5 M3 M4Female-Male Thread Length: 25mm+6mmPacking List: 20pcs M2x25mm+6mm Standoffs, 20pcs M2.5x25mm+6mm Standoffs, 20pcs M3x25mm+6mm Standoffs, 20pcs M4x25mm+6mm StandoffsAdvantageThe nylon standoffs are rust-free, durable, stable, and reusable compared with metal standoffs.InstructionDesigned to keep PCB at a consistent height and prevent it from bending, twisting, and short-circuiting.NOTE: Please measure the required length of your project, and then select the appropriate standoffs to save your time and effort.