Various 3/8", 1/4" M10 and M4 screw adaptors
Type C: 1/4" female to 1/4" male
Type B: 1/4" female to 3/8" male
Type A: 3/8" female to 1/4" male
Type G: 1/4" female to M4 male
Type F: M10 female to 1/4" male
Type E: 1/4" male to 3/8" male
Type D: 3/8" male to 3/8" male
Type H: 3/8" female to 5/8" male