螺旋彈簧防鬆華司 尾端平面
BN 20430
DIN 127 B
(Standard withdrawn)
~UNI 1751 B
~ČSN 021741
| Material |
Material
Federstahl
|
| Surface |
Surface
verzinkt-blau
|
All features
Standard
DIN 127 B (Standard withdrawn)
~UNI 1751 B
~ČSN 021741
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.
Spring lock washers for UNC, UNF, and Ww thread: BN 767
Other coatings on request.
Features
| Material |
Material
Federstahl
|
| Surface |
Surface
verzinkt-blau
|
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
BN 762 - DIN 127 B
Split spring lock washers with flat end - Spring steel - mechanical zinc plated blue
BN 763 - DIN 127 B
Split spring lock washers with flat end - Spring steel - mechanical zinc plated yellow
BN 764 - DIN 127 B
Split spring lock washers with flat end - Spring steel - hot dip galvanized