Component location: Center of wheel
This product includes :
3x3.5mm Stainless Steel Countersink Washer 4pcs
Stainless Steel Flat mind Screw 3x12 4pcs
Major features of updating to the part/product:
1. The original wheel hub diameter is 3.5mm. There will be gap if install with exclusive 3mm screws. The product can fit better.
2. Original installation would be to fix straight by screws, this product has upgraded to fixing by countersink washer and screws. This could easily support the wheel better.