- Hex head, female threaded inside, black oxide finishes.- Grade 8.8 Hex Nuts, made of Carbon Steel, high hardness and perfect wear resistance.- Hexagonal shape has 6 sides that gives a good granularity of angles for a tool to approach from.- Used in conjunction with a mating bolt to fasten two or more parts together.- Suitable for door handles, machinery industry and other small repairs around the shop, garage or home furniture fastener etc. SpecificationThread Size: (Female) M6Pitch: 1mmMaterial: Carbon SteelFinish: Black OxideGrade: 8.8Edge width: 10mm / 0.39"Height: 5mm / 0.2" Package Content: 50(+/-2%) x Hex Nuts