FASTENER KNOWLEDGE

Phosphate removal is crucial for weld screws without coatings to ensure strong, reliable welds. Phosphate layers insulate and

hinder current flow during welding, causing weak joints. Removing this layer improves conductivity and weld quality. Industry

standards like ISO 14373 and SAE J429 require phosphate-free weld zones to meet quality and safety demands.

What Is Hydrogen Embrittlement?

Hydrogen embrittlement is a condition in which metal—especially high-strength steel—experiences a loss of mechanical performance and becomes more

brittle after absorbing hydrogen during manufacturing. This can result in cracks or even sudden fracture. It typically occurs in processes such as electroplating,

pickling, or cleaning, and poses a serious, often hidden, risk to the reliability of industrial components.

This article explores common surface treatment methods for bolts, including galvanizing, heat treatment, and electroplating. Learn the pros and cons of each treatment method to help procurement teams choose the right surface treatment for improving the durability and performance of bolts.

Watai Industrial has been serving the global market for over 40 years.

From material selection and incoming inspections to production and final shipment, every step of our process is guided by strict quality standards. Our strong reputation—both in Taiwan and internationally—is built on a simple but powerful principle: an unwavering commitment to quality. At the same time, we remain price-competitive and solution-oriented, always prioritizing safety in every application.

Custom parts are non-standard components tailored to specific application needs, with unique dimensions,

functions, tolerances, materials, or surface treatments that standard parts can’t meet.