Comparison : Item # FSC3945001Z11, Rivet - Self Piercing Rivet
Item # FSC3970001A01, Rivet - Self Piercing Rivet
Item # FSC3970001A02, Rivet - Self Piercing Rivet
Item # FSC4850001Z11, Rivet - Self Piercing Rivet
Item # FSC4860001A01, Rivet - Self Piercing Rivet