Features [Precision processing] The spring ring has precisely processed threads, standard sizes and sturdy connections. [Long-term use] There are enough metal hardware to use for a certain time. [Tidy and Uncluttered] The plastic box that comes with the m2.5 spacer has multiple pockets to keep all parts neat and easy to carry. Complete accessories: The Allen bolt is equipped with screws, nuts, washers and wrenches, suitable for various mounting applications. [Durable Material] The flat spacer is made of high quality 304 stainless steel, rust-resistant, corrosion-resistant and durable. Specification: Item Type: Pan Head Hex Socket Nut Flat Ring Spring Gasket Wrench Material: 304 stainless steel Quantity: 662 pcs Package List: 160PCS M2.5 flat washer 160PCS M2.5 Spring Gasket 160PCS M2.5 Nut 2PCS M2.5 Key 20PCS M2.5x5 Screw 20PCS M2.5x6 Screw 20PCS M2.5x8 Screw 20PCS M2.5x10 Screw 20PCS M2.5x12 Screw 20PCS M2.5x14 Screw 20PCS M2.5x16 Screw 20PCS M2.5x18 Screw 20PCS M2.5x20 Screw 1PC Plastic Box Package List