MS 24628C-1963
F牙80°十字槽沉头割尾自攻螺钉
Type F 80°cross recessed countersunk head self tapping cutting screw
MS 24628C-1963
T牙80°十字槽沉头割尾自攻螺钉
Type T 80°cross recessed countersunk head self tapping cutting screw
MS 24628C-1996
F牙80°十字槽沉头割尾自攻螺钉
Type F 80°cross recessed countersunk head self tapping cutting screw