CO RODE M4 M5 M6 Stainless Steel Hex Head Bolts Nuts Washers Screws Assortment Kit - 304 Stainless Steel Hex flat head stainless steel screw bolts buts with lock washers, flat Washers, screws assortment Kit Material:High quality 304 stainless steel Head type:Hex Flat Head Cap Application:used in machinery, furniture, car and motorcycle repair and DIY inventions What you get: Total 475pcs(+-2%), 5 sizes stainless steel bolts,3 common size nuts, 3 different size flat and lock washer