Washers
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Washers - Flat, Locking, SAE/USS, Machine Screw and More
(51008) Flat washers feature a hole in the center matching the bolt they're used with. Locking washers, equipped with recessed features, prevent loosening. Some types include split lock washers, which use compression to prevent loosening; wave washers with a wavy surface for grip; and spring washers, which absorb vibration and shock. SAE/USS washers are designed for SAE (US) or USS (UK and others) fasteners. Finally, machine screw washers pair with machine screws to fasten metal pieces together. ABE-Fasteners-Bolt-Nut-Screw-Washer-General-Washers.jpg Washers
(9) Washers are thin, flat disks that are used with threaded fasteners, such as bolts and nuts. They are used to distribute the load of the fastener over a larger area, to prevent the fastener from loosening, and to provide a cushion between the fastener and the surface it is being fastened to. washers.jpg Washers, Split Lock Washers
Split lock washers are a type of lock washer that is used to prevent fasteners from loosening. They are made of a spring-like material that has two sharp edges. When the washer is installed between the bolt head or nut and the mating surface, the sharp edges dig into the surface and prevent the washer from rotating. This helps to prevent the fastener from loosening, even under vibration or shock. splitlockasmeb18.jpg 
