Fasteners series are: hex bolts, hex socket bolts, flange bolts, carriage bolts, square bolts, eye bolts, anchor bolts, u-bolts, t-bolts, rod bolts, hex nuts, cap nuts, nylon nuts, wing nuts, flange nuts, large size nuts, square nuts, plains washers, spring washers, machine screws, self-tapping screws , self-plugging rivet, blind rivets , drive rivet and so on. Cartons:25cm*20cm*16cm