DIN 988

Shim rings

Material: Spring steel | Installation method: Assembly by hand | Surface: zinc-plated, thick-film passivated (VZD) | Product group: Washers
Shim rings
Diameter (d)
25
26
30
32
35
40
Diameter (d2)
36
37
42
45
50
h max.
2
2,5
Packingunit (pcs.)
100
200
250
500
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DIN 988 | steel | spring steel | bright | Cr(VI) - free
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Surface (VZD): galvanized, thick-film passivated, min. 5µm | corrosion resistance to DIN EN ISO 9227 *: white rust 72h, red rust 144h | defined coefficient of friction µ(total) = 0.12 - 0.18 for high-strength screws (= 8.8)

>*The verification of the mentioned minimum requirements is carried out according to the test conditions of ISO/CD 4042:2016, galvanic coatings for fasteners. For dimensions < M5, the above values may deviate downwards.
Cr(VI) Note:
Cr(VI)-free
Form:
Round
Risk hydrogen embrittlement:
Material:
Spring steel
Installation method:
Assembly by hand
Surface:
zinc-plated, thick-film passivated (VZD)
Product group:
Washers
RoHS conformal:
Material:
Spring steel
The Manual of fastening Technology: 8th edition
PDF
ENG
8100/23-V1-EN (WBH)
Data sheet: Technical information and dimensions of the product
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VZD – the Cr(VI)-free alternative: Sustainable surface protection from Böllhoff
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