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Split spring lock washers with flat end

BN 20430

DIN 127 B (Standard withdrawn)

~UNI 1751 B

~ČSN 021741



Material
Material Spring steel
Surface
Surface zinc plated blue
Standard
Standard DIN 127 B (Standard withdrawn) ~UNI 1751 B ~ČSN 021741

All features

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Additional information

We recommend DIN 128 A (curved spring lock washers) for new construction: BN 768 / BN 769 / BN 770
Spring lock washers for UNC, UNF, and Ww thread: BN 767
Other coatings on request.

Features

Material
Material Spring steel
Surface
Surface zinc plated blue
Standard
Standard DIN 127 B (Standard withdrawn) ~UNI 1751 B ~ČSN 021741

Warnings

ISO 4042
Quenched and tempered fasteners ≥ 360 HV and tempered case-hardened fasteners with electroplated coatings: Susceptible to hydrogen embrittlement!
Further notice to residual risks can be found in the introduction section.