Hello Miao,
Per the conversation:
The current standard of surface treatment is 48H Salt Spray Test. It is ok if the material is not rust. The surface treatment is galvanizing. You have better zinc plating 72H and 96H Salt Spray Test, meanwhile you have the others surface treatment Zinc nickel gold or MAGNI coating.
The different surface treatment could impact the rivet performance because It is caused by drill holes, materials riveted and grip range. It could need redesign the dimension of rivet.
We decide we will will go for rivets with surface treatment 96H. This will be a special rivet with a new part numbers if the samples are ready.
We could need the samples in first stage.
10.000 ea. 10805-02 with surface 96H, (if yes. new part number will be created)
5.000 ea. 10806-02 with surface 96H, (if yes. new part number will be created).
Please give us each 200ea for approval testing and give us samples’ delivery date and drawings.