M6 Flat Head Hexagon Socket Connection Nut Barrel Nuts Furniture Hardware Rivet. Model: Flat Head Hexagon Socket Connection Nut.201 Stainless Steel (SUS), suitable for use in a dry environment, it is easy to rust with water. 304 Stainless Steel (A2) , outdoor or humid environment, resistant to corrosion and acid. 316 Stainless Steel (A4), added molybdenum, more corrosion resistance and pitting resistance, especially suitable for seawater and chemical media. Other accessories are not included. Please list your special requests color, packages, etc. Not accept returning of electronic components. Please contact me before you return it. Feedback is very important to us. This item is in the category "Business, Office & Industrial\Fasteners & Hardware\Screws & Bolts". The seller is "zly_0703" and is located in this country: CN. This item can be shipped worldwide.