Finger guards DC Dimensions (unit: mm) 40 mm sq. type Model no. Surface treatment Mass (g) 109-059 Nickel-chrome plating (silver) 7 109-059H Cation electropainting (black) Inlet side, Outlet side 3.50.3 49 +1.5 -0.5 .6 +1 0 o1 38.5 o1 4 o1.6 .5 o29 3 5.3 o4 8. Mounting example Axial fan Hexagonal nuts Finger guard Plain washers Spring washers Screws Fan Chassis AC Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Sanyo Denki: 109-059 109-059H