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Phone: +8617752939055
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East of Chaiao Village, Linmingguan Town, Yongnian District, Handan City, Hebei Province, China
DIN9021 Enlarged flat washer
Thread Size: M2.5-M36
Surface Treatment: Galvanized(White/Yellow), Hot Dip Galvanized, Black Oxide, Dacromet, Black Zinc Plating, Plain, Electrophoresis(Black)
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Product Size
DIN9021
Nom.Size d
1
d
2
min h (Thread Size min max min max max M2.5 2.7 2.84 7.64 8 0.7 0.9 M3 3.2 3.38 8.64 9 0.7 0.9 M3.5 3.7 3.88 10.57 11 0.7 0.9 M4 4.3 4.48 11.57 12 0.9 1.1 M5 5.3 5.48 14.57 15 1 1.4 M6 6.4 6.62 17.57 18 1.4 1.8 M7 7.4 7.62 21.48 22 1.8 2.2 M8 8.4 8.62 23.48 24 1.8 2.2 M10 10.5 10.77 19.48 30 2.3 2.7 M12 13 13.27 36.38 37 2.7 3.3 M14 15 15.27 43.38 44 2.7 3.3 M16 17 17.27 49.38 50 2.7 3.3 M18 20 20.52 54.1 56 3.4 4.6 M20 22 22.52 58.1 60 3.4 4.6 M24 26 26.84 70.1 72 4 6 M30 33 34 89.8 92 5 7 M36 39 40 107.8 110 6.8 9.2 -
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The core advantage of big flat washer is that it provides a much larger supporting area than ordinary flat pads (such as DIN125), suitable for scenarios involving thin / soft materials, large hole diameters, or the need for large-scale pressure dispersion.
For example, it is used for fixing wooden furniture and plastic casings, preventing bolts from crushing the boards / shells.
It is also used for connecting thin steel plates in power distribution cabinets and photovoltaic supports, adapting to situations with larger pre-drilled holes.
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East of Chaiao Village, Linmingguan Town, Yongnian District, Handan City, Hebei Province