Washer DIN 125 M16(17) 200 HV zinc flake black

A flat washer is a fastening product that has the appearance of a flat disk with a smooth cylindrical hole in the middle, the diameter of which is slightly larger than the diameter of the metric product with which it is used. It is made of steel with a hardness of 140, 200, 300 HV.

Area of ​​use DIN 125 is used to increase the clamping area for various types of connections, reduce pressure on the surface of connecting materials, and reduce friction between the nut and the surface of the part when screwing. In some cases, it is also used as a spacer to increase the distance between the nut and the surface of the part (this is necessary if the thread of the bolt or screw is damaged at the point of clamping).

Material high-strength structural alloy steel.

Coating: black zinc cloth.

Main characteristics of this coating:

• Organic black topcoat;
• Excellent corrosion protection;
• High hiding power on silver and black base coatings;
• Attractive uniform black appearance;
• Very good chemical resistance; increased UV resistance;
• Excellent adhesion, i.e. the coating does not peel, crack or flake even under mechanical stress or chemical attack;
• Integrated lubricant component for controlled friction characteristics;
• No hydrogen embrittlement;
• Excellent corrosion resistance in NSST and cyclic corrosion tests.

Analog GOST 11371-78, ISO 7089