Futaba FSH21 Eyelets Brass Servo This contains 20 brass eyelets which go in the center of the servo grommets for mounting the servos This contains 20 brass eyelets which go in the center of the servo grommets for mounting the servos; SPECS: Height: 4.5mm (.17 ) Diameter: 3mm (.11 ) Inside Diameter: 2.75mm kh3-27-02 updated jpg 3/9/09 This contains 20 brass eyelets which go in the center of the servo grommets for mounting the servos; SPECS: Height: 4.5mm (.17 ) Diameter: 3mm (.11 ) Inside Diameter: 2.75mm kh3-27-02 updated jpg 3/9/09