Split spring lock washers for screws with cylindrical head
BN 774
DIN 7980
(Standard withdrawn)
~ČSN 021740
| Material |
Material
Spring steel
|
| Surface |
Surface
zinc plated blue
|
| Hardness |
Hardness
430-530 HV
|
All features
Standard
DIN 7980 (Standard withdrawn)
~ČSN 021740
Additional information
Other coatings on request.
Features
| Material |
Material
Spring steel
|
| Surface |
Surface
zinc plated blue
|
| Hardness |
Hardness
430-530 HV
|
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 on our web page: Notes on use