Features 1、These standoffs are made of high quality brass material for durability and long service life 2、Waterproof standoffs with good thermal conductivity are rust resistant and easy to clean, you can simply clean them with a cloth 3、There are nine different available lengths that you can use as need for different purposes 4、Great standoffs to mount on circuit boards or machine to create space or to properly position them 5、Widely used in machinery industry, electronic industry, testing equipment, electric equipment, medical equipment, communications, automotive, engineering machinery, electric power and other fields Specification Description: A standoff is a fastener that is used to create space between two objects, often to properly position them. In the world of electronic components and electronic hardware, standoffs are typically used to space circuit boards, panels, doors or gears. These standoffs are made of brass for good thermal conductivity, electrical conductivity and rust resistance. Features: These standoffs are made of high quality brass material for durability and long service life. Waterproof standoffs with good thermal conductivity are rust resistant and easy to clean, you can simply clean them with a cloth. There are nine different available lengths that you can use as need for different purposes. Great standoffs to mount on circuit boards or machine to create space or to properly position them. Widely used in machinery industry, electronic industry, testing equipment, electric equipment, medical equipment, communications, automotive, engineering machinery, electric power and other fields. Specifications: Standoffs: Material: Brass Type: Male-Female Size: M2.5*5+6, M2.5*6+6, M2.5*7+6, M2.5*8+6, M2.5*9+6, M2.5*10+6, M2.5*11+6, M2.5*12+6, M2.5*15+6mm Quantity: 20pcs each size Nuts: Material: Stainless steel Thread: M2.5 Quantity: 180pcs Box Size: 13 x 6.5 x 3cm / 5.11 x 2.55 x 1.18" Package Includes: 1 Box x Standoff Assortment Package List