Mil spec FF-S-200 covers hexagon socket and spline socket headless setscrews.
- Type I – Hexagon socket, headless
- Type II – Spline socket, headless
Setscrews shall be of the following styles:
- Style 1 – Flat point
- Style 2 – Cone point
- Style 3 – Oval point
- Style 4 – Cup point
- Style 5 – Full-dog point
- Style 6 – Half-dog point