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Hot-dip-galvanized-Flat-washer M10 - M30 Metal Washers DIN7989 /DIN125 Standard With Hot Dip Galvanized Finish

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Our factory mainly produces: all kinds of flat washers,Drop in anchor ,and spring washers, anchor bolt , hex nut, hex bolt, sleeve anchor, and thread rod  with DIN, BSW,

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Hot-dip-galvanized-Flat-washer M10 - M30 Metal Washers DIN7989 /DIN125 Standard With Hot Dip Galvanized Finish

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Hot-dip-galvanized-Flat-washer M10 - M30 Metal Washers DIN7989 /DIN125 Standard With Hot Dip Galvanized Finish

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Hot-dip-galvanized-Flat-washer

Hot-dip-galvanized-Flat-washer M10 - M30 Metal  Washers DIN7989 /DIN125 Standard With Hot Dip Galvanized Finish

Galvanizing  also known as hot dip zinc and hot dip galvanized: is an effective way of metal corrosion, mainly used in various sectors of the metal structure facilities. Is the rust after the steel immersed in about 500 ℃ melting zinc solution, so that the steel surface attached to the zinc layer, which play the purpose of corrosion. Usually, the thickness of the galvanized layer is 5 to 15 m, and the hot-dip galvanizing layer is generally 35 m or more, even up to 200 m. Hot galvanized coverage is good, the coating is dense, no organic inclusions. It is well known that the mechanism of anti-atmospheric corrosion of zinc has mechanical protection and electrochemical protection. Under the atmospheric corrosion conditions, ZnO, Zn (OH) 2 and basic zinc carbonate protective film on the surface of zinc layer can reduce the corrosion of zinc to a certain extent. Layer protective film (also known as white rust) is damaged and will form a new film. When the zinc layer is seriously damaged, threatening the iron matrix, zinc on the substrate to produce electrochemical protection, the standard potential of zinc -0.76V, iron standard potential -0.44V, zinc and iron to form a micro-battery zinc as the anode is dissolved, iron As the cathode is protected. It is clear that the hot-dip galvanizing is superior to galvanized to the atmospheric corrosion resistance of the matrix metal iron.
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Specification

                                         DIN7989 Flat Washers
 
SIZE inside diameter  Outside diameter thickness Thousands of heavy
10 11-11.7 18.7-20 8-12 13.8
12 13.5-14.2 22.7-24 8-12 19.4
16 17.5-18.2 28.7-30 8-12 29.3
20 22-22.84 35.4-37 8-12 43.7
24 26-26.84 42.4-44 8-12 62.1
27 30-30.84 48.4-50 8-12 78.9
30 33-34 54.1-56 8-12 101
 

 

 Contact Details
HEBEI YUETONG FASTENERS MANUFACTURING CO.,LTD
Contact Person: Aimee
Email:aimee@ytfasteners.com
Wechat/WhatsApp/Skype: +86 15832018600
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