Superb MaterialThe flat washers are made of outstanding plastic nylon material, which is lightweight, has corrosion resistance, tear resistance, deformation, and compression resistance, has good heat insulation, durable for long time use. ****Include 100*M2,100*M2.5, 100* M3, 50*M4, 50*M5, 509M6, 50*M8, 20*M10 Good PerformanceThe round washers can increase the force area, reduce friction and prevent local damage. This nylon spacer has a certain isolation and protection effect, extends the service life of the equipment. Easy to UseYou only need to choose an insulating washer suitable for the hole diameter and install it under the screw, which is suitable for installing furniture and repairing electrical appliances. The washer has good impact resistance, reduces vibration, avoids damage. Easy to StoreThese screws washers are placed in a plastic box, easy to organize, transport, and find the desired size, which can meet your various needs, meet most of the needs of daily work installation and DIY. Wide ApplicationsAssorted nylon spacers are widely used in household appliances and industries, mainly for electrical connection, commerce, automobiles, ships, ordinary plumbers, generators, machinery and devices, and more.