Hexagon head screws as per picture in attachment Stainless steel A2 M8x30 Hexagon nuts as per picture in attachment Stainless steel A2 M8 It is very important to keep the tolerances indicated by the customer: 7,88 (tolerance -0,1/+0,0) 6,40(tolerance -0,0/+0,1) Quantity first order: 5.000-6.000 pcs. Order is going to be repeated