Washers are normally used under bolt heads or nuts to increase the bearing area or offer greater hardness. Flat washers are very common, and they are used to give tightness to a joint, to prevent leakage, and help to distribute pressure under the head of a nut or bolt.
Materials: Carbon Steel, Alloy Steel, Stainless Steel.
Finish: plain,(blue, yellow) zinc plated, black oxide, HDG etc
Supply ability: around 600 tons per month.