10pcs Black Zinc Butt Nut Flat Hex Hexagon Rivet Connector M3 M4 M5 M6 M8 (Size : M8x20mm (10pcs))

Our rivet connector are made of zinc plated material, which have great corrosion resistance and high hardness. The flange faces are neatly arranged, which are smooth and burr-free. Besides, the screw mouth is deep and even enough in case of sliding.There are nylon insert the nuts fastening the screws and bolts effectively. This internal hex drive cup-point screws are made of high-quality stainless steel, which has good wear resistance and durability. This set screws assortment is very suitable for connection where the power supply is threaded/bolt type connection, such as store, door handle around home, faucet, etc. The installation of this screw is very convenient, you can easily replace the old or damaged set screw.