Screw Size: M5; Diagonal Hole Distance: 116mm / 4.6 inch; Parallel Hole Distance: 84mm / 3.31 inch; Fit Fan Diameter:90mm / 3.5 inch Advantage: This fan finger grill not only ventilate and can be dustproof, and it can help extend the life of the fan.
Screw Size: M5; Diagonal Hole Distance: 116mm / 4.6 inch; Parallel Hole Distance: 84mm / 3.31 inch; Fit Fan Diameter:90mm / 3.5 inch Advantage: This fan finger grill not only ventilate and can be dustproof, and it can help extend the life of the fan.