China DIN436 Square Washers Plain Flat Washers

Product description
A 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 the width of 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.
Rubber or fiber gaskets used in taps (or faucets, or valves) to stop the flow of water are sometimes referred to colloquially as washers;But, while they may look similar, washers and gaskets are usually designed for different functions and made differently.
Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminium surfaces.
The origin of the word is unknown;The first recorded use of the word was in 1346, however the first time its definition was recorded was in 1611.

Products nameWashers(Flat washer, spring washer.ring washer,Lock washer,Slip washerStandard:DIN,ASTM/ANSI JIS EN ISO,AS,GBMaterialStainless Steel: SS201, SS303, SS304, SS316,,SS904LSteel Grade:Common and high strengthFinishingZinc(Yellow,White,Blue,Black),Hop Dip Galvanized(HDG),Black Oxide,
Geomet,Dacroment,anodization,Nickel plated,Zinc-Nickel platedProduction
ProcessStamping, Machining and CNC for Customized fastenerCustomized Products
Lead timeBusy season:15-30days,Slack seaon:10-15daysStock ProductsCarbon steel:DIN125,DIN127,DIN471,DIN472,F436M
Stainless steel: All DIN Or GB Standard stainless steel washersFree Samples for standard fastenerFor more information visit:http://goshenhardware.en.made-in-china.com/