Finger guards DC Dimensionsunit : mm 70 m m s q . t y p e Model109-1128 Color Surface treatment Nickel-chrome platingsilver In l e t s i d e, O u t l e t s i d e 4.30.3 6 3 78 +1.5 91 -0.5 .2 5 +10 1.6 16 1.6 7) (8 17g Mass Mounting example Axial fan Hexagonal nuts Finger guard Plain washers Spring washers Screws Fan Chassis AC