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Designation
Washer
Product type
washer
DIN Standard
DIN 9021
Body material
steel
Body surface finish
galvanised
For=For screws
M18
G=thread / for thread
M18
D1
20
D2
56
Fastening type
bore
H
4

Description

Material
Steel, stainless steel A2 or stainless steel A4.
Version
Steel electro zinc-plated, hardness
D1 ≤ 14 = 140 HV.
D1 > 17 = 100 HV.
Stainless steel A2, bright.
Stainless steel A4, bright.
Note
The pulleys have an OD of D2 = ~3 × D1.
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