HVAZI #2-56 UNC Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit (#2-56UNC)High Quality 220PCS #2 56 UNC 304 Stainless Steel Phillips Pan Head Machine Screws and Nuts Assortment Kit Thread Diameter: #2; Thread Pitch: 56 Per Inch(Coarse) The assortment contains:#2 56x5 32",#2 56x1 4",#2 56x5 16",#2 56x3 8",#2 56x1 2",#2 56x5 8",#2 56x3 4",#2 56x7 8",#2 56x1"(Length is measured from under the head),Each 20 piece,Nut 40 piece They are Made of 304 stainless steel; 304 stainless steel have good chemical resistance and may be