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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(Standard withdrawn)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 彈簧鋼
Surface
Surface 鍍鋅

All features

All prices are based on the minimum order quantity. If you have any questions or special requirement, please contact Bossard.


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DIN 127 B (Standard withdrawn) ~UNI 1751 B ~ČSN 021741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.

Features

Material
Material 彈簧鋼
Surface
Surface 鍍鋅

Warnings

ISO 4042
淬火和回火的緊固件硬度 ≥ 360 HV 及滲碳熱處理的緊固件表面電鍍處理: 易氫脆風險!
有關殘餘風險的進一步注意事項,使用注意事項