All Stainless Steel blind rivets are a sure way to avoid rust and oxidation. Produced from the finest grade stainless steel materials and clean polished, the FBF series will look great and last a lifetime in the finished assembly. the mandrels are blunt diamond pointed to insure increased assembly speed and improving safety. the unique mandrel head shape assists in retaining the mandrel within the rivet. All Stainless Blind rivets rank #1 in shear and tensile strength when compared to others in its class.