920 Pcs Flat Head Hex Socket Screws and Nuts and Washers Assortment Set, M3 M4 M5 M6 Countersunk Head Machine Screws 304 Stainless Steel Bolts Nuts Head Kit (Flat Head Screws)

【SIZES】--- M3 M4 M5 M6 Series screw, nut, bolt, and flat washer. Each series has 4 screw and bolt lengths with the standard metric system. The nuts and flat washers expand the contact area and reduce stress to protect the screws and parts. The tight, uniform threads are not easily deformed or slipped during rolling and installation.
【DURABLE MATERIAL】--- Constructed from premium 304 stainless steel, it offers strength in a variety of environments and provides good corrosion resistance. It has excellent rust resistance and a fine finish, making it ideal for long-term indoor and outdoor use.
【WIDE APPLICATIONS】--- Assortment kit of M3, M4, M5, and M6 hex flat head washers and nuts. These screws can be widely used in various precision machinery, classification instruments, electronic products, household appliances, communication products, locks, lamps, toys, etc.
【PACKAGE】--- All screws, bolts, and nuts are packaged in a small bag to prevent them from being scattered or lost during use, and come with a transparent box for storage. There are corresponding size labels on the box for your convenience.

Made of high-quality 304 stainless steel, the stainless steel material offers strength and good corrosion resistance in many environments, making it ideal for both indoor and outdoor use.

Our M3, M4, M5, and M6 screws and nuts conform to the standard metric system. They are widely used in household and office appliances, communication equipment, 3D printer parts, shipbuilding, and other machinery industries.

The metal screw assortment kit comes with four sizes of hex keys for convenient use. The nuts and flat washers expand the contact area and reduce pressure to protect the screws and parts.

Hollow head screws are used to fasten one object to the inside or against another. Hex socket screws are used in machine assembly or engine and machine maintenance. Each screw size is individually bagged and placed in a plastic box with compartments. Convenient for storage and use. Four Allen keys (also known as wrenches) can be used with appropriately sized bolts and nuts. They are a perfect match for our M3, M4, M5, and M6 screws. Note: The screw assortment contains small parts; keep out of reach of children.