Description: <br>The washer is a thin disk-shaped plate with a hole in the middle that is normally used to distribute the load of a threaded fastener, such as a screw or nut. Other uses are as a spacer, wear pad, pre-load indicating device, locking device, and to reduce vibration. High-quality bolted joints require hardened steel washers to prevent the loss of pre-load after the torque is applied. Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminum surfaces. <br> <br> <br>Features: <br>Made of high quality steel material, these flat washers are sturdy and has long service. <br> <br>Flat washers can spread a load, and prevent damage to the surface being fixed, and insulate steel screws from surface. <br>They can be used as a spacer, wear pad, pre-load indicating device, locking device, and to reduce vibration. <br> <br>Flat washer is applied when the hole is a larger diameter than the fixing nut. There are many different sizes in this set. <br>Each set includes many flat washers that can be used for a long time, so you don't have to run to hardware store looking for washers for quite a while. <br> <br> <br>Specifications: <br>Material: A3 steel <br>Type: Flat washer <br>Color: Silver <br>Size & Quantity: <br>M3*150pcs <br>M4*150pcs <br>M5*200pcs <br>M6*200pcs <br>M8*150pcs <br>M10*50pcs <br>Weight: 446g(approx.) <br> <br> <br>Package Includes: <br>900 x Washers<br>1、Made of high quality steel material, these flat washers are sturdy and has long service <br>2、Flat washers can spread a load, and prevent damage to the surface being fixed, and insulate steel screws from surface <br>3、They can be used as a spacer, wear pad, pre-load indicating device, locking device, and to reduce vibration <br>4、Flat washer is applied when the hole is a larger diameter than the fixing nut. There are many different sizes in this set <br>5、Each set includes many flat washers that can be used for a long time, so you don't have to run to hardware store looking for washers for quite a while