... are as following:Bolts: hex bolts, heavy hex bolts, hex flange bolts, carriage bolts, stud bolts, eye bolts, U bolts, masonry bolts, roofing bolts.Nuts: spring nuts ... flange nuts, wing nuts, weld nuts, square nuts, cap nuts.Washers: flat washers, spring washers, lock washers, structural ... screws, self drilling screws, set screws, hex socket head cap screws, wood screws.Rivet: solid rivet, blind rivet, ...