Size: M2 M3 M4 M5 M6 M8 The machine screw sorting kit is widely used in various machinery, sorting equipment, electronic products, household appliances, communication products, locks, lights, toys, etc.All hexagon socket screws, nuts, bolts and washers are packed in a sturdy compartmentalized storage box.660 pieces of hexagon socket button head cover screw bolt nut washer kit. This metric screw set contains 6 related Hex wrenches.If you still have questions, please contact us in time Color: picture color Material: Stainless steelPackage Contents:660 x 304 hex socket set screw with flat point(20 x M6X6, 20 x M6X8, 20 x M6X10, 20 x M6X12, 50 x M2X4, 50 x M2X5, 30 x M5X5, 30 x M5X6, 30 x M5X8, 30 x M5X10, 10 x M8X8, 10 x M8X10, 30 x M4X4, 30 x M4X6, 30 x M4X8, 30 x M4X10, 10 x M8X12, 10 x M8X16, 50 x M3X3, 50 x M3X4, 50 x M3X5, 50 x M3X6)1 x Hexagonal wrench 1 (with tightening M2)1 x Hexagonal wrench 1.5 (with set screw M3)1 x Hexagonal wrench 2 (with set screw M4)1 x Hexagonal wrench 2.5 (with set screw M5)1 x hex wrench 3 (with set screw M6)1 x Hexagonal wrench 4 (with set screw M8)Only the above package content, other products are not included. 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.