Nylon standoffs are made of nylon material. The standard shape is round nylon standoffs and hex nylon standoffs. Hex nylon standoffs are more popular. Black color is more common, but white color is also ok if you need. We have many kinds of sizes in stock. Thus once required,we could ship them out soon. Both male to female nylon standoffs and female to female nylon standoffs could be offered. They are ideal for mounting between PCB circuit boards and mane boards. Sure,for assembly, nylon screws and nylon nuts are available.