slotted types: flat head ,countersunk head, round body, Material: steel.... flat head slotted rivet nutWe use cold forged technique, not only ... car, ship, electron and other fittings of industrial products. types: flat head ,countersunk head, round body, hex body, open end, closed end, body ... . We specilize in producing it . And have productive experience for many years. flat head slotted rivet nut