M2*15 M2X15 copper standoff 6 pcs per set
The hole size is for M2 screw
The outer diameter is 3.1mm
The lengthe is 15mm
The weight for 6 pcs of standoff is about 3.5 grams, compared with the weight 0.7 g of 6 pcs of plastic M2X10 standoff, it increased 2.8 g!