Information of Countersunk Washer: 1) Material: Aluminium 2) Inside Diameter: 8mm 3) Outer Diameter: 22mm 4) Thickness: 6mm 5) Color avaliable: Rose red, Golden, Silver, Black, Dark blue 6) Surface treatment: Multi-anodizing treatment 7) Packing: 100pcs/Bag Features of Countersunk Washer: 1) High accuracy on working procedure 2) High hardness 3) Smooth surface 4) No burr 5) Small order are accepted 6) Competitive price 7) Prompt delivery Something of us: We are a strong manufacturer of kart parts in Ningbo, Zhejiang where the main import and export market in China. It is no necessary for you to worried about that we can not finish your order after you ordering to us within the delivery time, as for we have professional production team, effective management, strict working procedure testing and excellent automatic data control machines. Above all, "good quality, prompt delivery" are our production purpose, so belive us, belive yourself!