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Common surface treatment methods for fasteners such as screws and nuts, and resistant screws

The anti loosening of bolts is a very important aspect in various types of mechanical connectors. There are many ways to prevent bolts from loosening in daily life, including using spring washers to prevent loosening. Spring washers are often referred to as spring washers in the screw industry. So why is it frequently used? This depends on the function and principle of spring washers.

Why do screws made of stainless steel also rust?

How to Harden Screws - Screw Hardening Process Flow

Usage of Wall plug