DIN 125A Washers ISO 7089 Flat Washer Stainless Steel 304 A2 Purification M1.6-M12

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Description

DIN 125A washers are thin plates (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). Ever Hardware provides custom made fasteners and customizable packaging.
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 aluminum surfaces.

Stainless steel DIN 125A washers do not readily corrode, rust or stain with water as ordinary steel does. However, it is not fully stain-proof in low-oxygen, high salinity, or poor air-circulation environments. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and corrosion resistance are required.
Stainless steel differs from carbon steel by the amount of chromium present. Unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film (the rust) is active and accelerates corrosion by forming more iron oxide; and, because of the greater volume of the iron oxide, this tends to flake and fall away.

DIN 125A ISO 7089
Diameter M1.6 to M12
Thread Pitch As Standard
Type Flat
Chamfer None
Material Stainless Steel A2
Specification DIN125A
System of Measurement Metric
Place of Origin China Mainland
Finish Plain

DIN 125A Washers ISO 7089 Flat Washer Stainless Steel 304 A2 Purification M1.6-M12

Additional information

Weight N/A
Size

M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10, M12

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