ITEM NAME:170Pcs M4 Stainless Steel Hex Drive Button Head Socket Cap Bolts Screws Nut L5C1 170Pcs M4 Stainless Steel Hex Drive Button Head Socket Cap Bolts Screws Nut L5C1 High Quality Stainless Steel Hex Socket Button Head Bolts Screws Nuts Drive Type: Hex Socket; Head Style: Button Head Material: Stainless Steel Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry color:silver Designed with stainless steel material, the stainless steel material provides strength and offers good corrosion resistance in many environments Perfect for use in confined areas where the head needs to be flush or below the surface Fixing component, industrial and construction fasteners Size: M4 (Include M4 Nuts) Set include: 20 pcs M4 * 6 Screw 20 pcs M4 * 8 Screw 20 pcs M4 * 12 Screw 20 pcs M4 * 16 Screw 20 pcs M4 * 20 Screw 20 pcs M4 * 25 Screw 50 pcs M4 Nuts 1x blue transparent box Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Size: M4 (Include M4 Nuts). 20 pcs M4 6 Screw. 20 pcs M4 8 Screw. 20 pcs M4 12 Screw. 20 pcs M4 16 Screw. 20 pcs M4 20 Screw. 20 pcs M4 25 Screw. 50 pcs M4 Nuts.