Reinforced washer DIN 7989

Buy DIN 7989

DIN 7603 copper Washer (O-ring) Fastening groupCopper..StandardDIN 7603MaterialCopperDiameter, mm4, 5, 6, 6.5, 8..Outer diameter, mm7.4, 7.9, 8.9, 9.4..Thickness, mm1, 1.5, 2, 2.5Packaging, pcs.200, 100, 25, 10..TypeFlatOEM numbers094001 Claas, 631697..

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DIN 7603 aluminum Washer (O-ring)

DIN 7603 aluminum Washer (O-ring) Fastening groupAluminum..StandardDIN 7603MaterialAluminiumDiameter, mm5, 6, 6.5, 8, 10..Outer diameter, mm8.9, 9.4, 9.9, 11.4..Thickness, mm1, 1.5, 2Packaging, pcs.200, 100, 50TypeFlat

Technical characteristics DIN 7989

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Specifications Reinforced washer DIN 7989 | Dinmark>

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Specifications

Fastening group

Copper fastening

Standard

DIN 7603

Material

Copper

Diameter, mm

4 5 6 6.5 8 10 12 13 14 15 16 17 18 20 21 22 23 24 26 27 28 30 32 33 36 38 42 45 48 60

Outer diameter, mm

7.4 7.9 8.9 9.4 9.9 10.9 11.4 11.9 13.4 13.9 14.9 15.4 15.9 16.9 17.9 18.9 19.9 20.9 21.9 22.9 23.9 24 25.9 26 26.9 27.9 28.9 30.9 31.9 32 32.9 33.9 35.9 37.9 38.9 40.9 41.9 43.9 48.9 51.9 54.9 67.8

Thickness, mm

1 1.5 2 2.5

Packaging, pcs.

200 100 25 10 50 20

Type

Flat

OEM numbers

094001 Claas 631697 Claas 236405 Claas 633533 Claas 244023 Claas 236688 Claas

Reinforced washer is a fastener that, compared to other types of washers, has an increased thickness, which, together with the high-strength steel from which it is made, allows it to be used under conditions of high static and dynamic loads in such types of equipment as presses and lifting mechanisms or for clamping devices.

DIN 7989 fastening group

Most often, DIN 7989 washers are made of stainless steel and belong to the stainless fastener group.

Materials for the manufacture of DIN 7989 washers

DIN 7989 washers are made of the following materials:

Steel, which can optionally be coated with hot-dip zinc. Hot-dip zinc protects against corrosion if the fastener is to be used in aggressive environments.
Stainless steel grades A2 and A4. Steel grade A2 allows the fasteners to be used at significant temperature drops and in aggressive and humid environments.

Application range of washers DIN 7989

The washer is used in production and construction sites, when assembling metal structures. Its main function is to distribute the pressure exerted by a nut or bolt head evenly over the bearing surface. This prevents the base from being pushed through, which can lead to the destruction of the assembly.

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