Zinc PlatedZinc plated/Zinc platedPolish/PolishPolish/PolishDiameter:3.2mm, 4.0mm, 4.8mm, 6.4mm,(1/8, 5/32, 3/16,1/4)Customized:CustomizedStandard:IFI-114 and DIN 7337, GB. Non-standardHow to UseThe rivet assembly is inserted into a hole drilled through the parts to be joined and a specially designed tool is used to draw the mandrel into the rivet.This expands the blind end of the rivet and then the mandrel snaps off.These types of blind rivets have non-locking mandrels and are sometimes avoided