Washer is a thin plate (typically disk-shaped) with a hole (typically 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, spring (belleville washer, wave washer), wear pad, preload indicating device, locking device, and to reduce vibration (rubber washer). Washers usually have an outer diameter (OD) about twice larger than their inner diameter (ID).
Washers are usually metal or plastic. High-quality bolted joints require hardened steel washers to prevent the loss of pre-load due to Brinelling after the torque is applied.
These general use flat washers are positioned under the head of a bolt or nut in order to provide a smooth bearing surface and distribute the fastener load over a wider area.
|Material||SPEC||Finish||Grade||Salt spray test|
|M0.8 - M20||
Contact: Kevin Wang
Company: Himore Electrical Industry (HK) Ltd
Add: 205,2F,Building C,Unit 104,HuanGuan Zhong Road,GuanLan Street,LongHua District,Shenzhen City,GuangDong Province,China 518100