This design is by far the best way to mount servos, cowls, landing gear, etc. The wide/low profilehead of the screw acts as a washer and they also have a socket head for easy, no slip installation. Bright Zinc plated with clear chromate.
These also have unlimited uses in areas outside the hobby such as household, crafts, garage, vehicles, farm, agricultural, woodworking and many more. 8/pkg
Note: This list may not be 100% accurate or up to date, and is meant to be used as a guideline for compatibility.