High Quality 360PCS 2-56 4-40 6-32 UNC 304 Stainless Steel Phillips Pan Head Machine Screws and Nuts Assortment Kit Thread Diameter: 2; Thread Pitch: 56 Per Inch(Coarse); Thread Diameter: 4; Thread Pitch: 40 Per Inch(Coarse); Thread Diameter: 6; Thread Pitch: 32 Per Inch(Coarse) The assortment contains: 2x5/32 to 1/2 4x1/4 to 5/8 6x1/4 to 3/4(Length is measured from under the head),Each 20PCSand Nut Each 40PCS They are Made of 304 stainless steel;304 stainless steel have good chemical resistance and may be mildly magnetic new,All contained in a compact and see through compartmented plastic Box.Easy to install and durable to use Made from 304 Stainless steel, these pan head screws have good chemical resistance and may be mildly magnetic. Length is measured from under the head Package include: High Quality 360PCS 2-56 4-40 6-32 UNC 304 Stainless Steel Pan Head Phillips Screws and Nuts Assortment Kit 2-56 4-40 6-32 UNC Pan Head Phillips Screws and Nuts Kit total360 pieces. Come with the plastic box: List(Type,Thread/Length,Quantity) Pan Head Phillips Screws 2-56x5/32 20PCS Pan Head Phillips Screws 2-56x1/4 20PCS Pan Head Phillips Screws 2-56x5/16 20PCS Pan Head Phillips Screws 2-56x1/2 20PCS Nuts 2-56 40PCS Pan Head Phillips Screws 4-40x1/4 20PCS Pan Head Phillips Screws 4-40x5/16 20PCS Pan Head Phillips Screws 4-40x3/8 20PCS Pan Head Phillips Screws 4-40x5/8 20PCS Nuts 4-40 40PCS Pan Head Phillips Screws 6-32x1/4 20PCS Pan Head Phillips Screws 6-32x3/8 20PCS Pan Head Phillips Screws 6-32x5/8 20PCS Pan Head Phillips Screws 6-32x3/4 20PCS Nuts 6-32 40PCS Packing contents: 360PCS 2-56 4-40 6-32 UNC 304 Stainless Steel Phillips Pan Head Machine Screws Nuts Assortment Kit in a plastic box.