... rivets & rivet nuts, machine screws and washers. We also deal ... slotted nuts, rivet nutWASHERS: flat washers, spring washers, lock washersSCREWS: machine screws, self tapping screws, set screws, hex socket head cap screws ... , woodscrews, self drilling screwsWelcome to inquiry,Please contract me 0086-13375153858 Slotted Cheese Head Screws ...