Features: _x000D_ Made of high quality nylon material, these flat washers have long service._x000D_ _x000D_ Flat washers can spread a load, and prevent damage to the surface being fixed, and prevent leakage. _x000D_ They can be used as a spacer, wear pad, pre-load indicating device, locking device, and to reduce vibration._x000D_ _x000D_ Flat washer is applied when the hole is a larger diameter than the fixing nut. There are many different sizes in this set. _x000D_ Each set contains 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. _x000D_ _x000D_ _x000D_ Specification: _x000D_ Material: Nylon _x000D_ Color: Black, White (Optional) _x000D_ Size & Quantity: _x000D_ M2 100PCS_x000D_ M2.5 100PCS_x000D_ M3 100PCS_x000D_ M4 100PCS_x000D_ M5 50PCS_x000D_ M6 50PCS _x000D_ Weight: 58g / 2oz(approx.) _x000D_ _x000D_ _x000D_ Package list: _x000D_ 1 box * Washers