M3 Hex Brass Kit: M3 hex brass spacers, brackets, nuts in each package, they can meet various needs in different situations. Material: M3 male and female hex are made of brass . Screws and nuts are made of stainless steel, rustproof and durable. Versatile: Hex screws are very common in many fields such as electronics, electrical appliances, chemicals, mechanical equipment , furniture, etc. Studs are typically used for PCB, panel, door, or gear spacing. Suitable for Raspberry Pi, motherboards, circuit boards, computer cases, etc. Convenient: The m3 spacer kit is easy to install, waterproof and rustproof and easy to clean, you just need to clean it with a rag. Contents: PCB standoffs, total 120 pieces, brass male and female hex standoffs, screws and nuts, various sizes. All M3 kits are sorted in plastic storage boxes to prevent loss and find what you need Product Description A spacer is a fastener used to create a space between two objects, usually to position them correctly. In the