Flat washer is made of integral metal sheet by machining, which is used for sealing pressure vessels, towers, grooves, valve covers and other parts.

Specification

Standard: DIN/ISO/JIS/GB/ANSI/ASME/BSW and Non-standard

Size: M3 ~ M60, or according to the customer’s drawing or samples

Material: low carbon steel, stainless steel304, 45# steel

Grade: 4.8/ 6.8/ 8.8/ 10.9/ 12.9

Surface treatment: H.D.G., Zinc Plated, yellow zinc, Black Oxide, Nickel, Chrome, etc.

Shape: Round, square

Style: wedge, internal tooth, external tooth, countersunk

Product Features & Advantages

Metal flat washer is used in bolted flange connection parts to prevent leakage of internal medium such as pipeline vessel. Most products with sealing effect of bolt flange are located between two flanges. Flat washer is usually thin piece of various shapes, which is used to reduce friction, prevent leakage, isolate, prevent loosening or pressure dispersion. They are found in many materials and structures to perform similar functions. Limited by the material and process of threaded fasteners, the bearing surface of bolts and other fasteners is not large. Therefore, in order to reduce the compressive stress on the bearing surface and protect the surface of the connected parts, metal flat pad is used.

Packing & Shipment

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