Disc Spring Lock Washer, JIS B 1251, Class 1 (for Screws, for Heavy Loads)

Brand :

HEIWA HATSUJYO

Caution

Some products are scheduled to be discontinued from October 2021. Depend on stock status, the end time will be changed. Please check the quotation and order screen for details.

Product Description

This part has spring counter-force comparable to tightening axial force of bolts and prevents thread loosening caused by vibration and shock. It is possible to obtain a stable tightening axial force without causing fatigue to the tightening material due to the low pressure applied to the bearing surface.