Nylon screws are made of top level nylon material. They are very light and have an very economic price. They are widely used in Drone industry because of their features. We often offer black and white color. Both cross and slotted head nylon screws are available. Sure,for assembly, nylon male to male standoffs,nylon female to male standoffs and nylon nuts can be provided as well. If you need special packing service including special package boxes, it is also ok for us. Any questions or demand, please feel free to contact us.