About Fastener Strength

The strength and hardness of fasteners are two important indicators and the most critical factors determining their load and mission. They also represent the basic industrial manufacturing level of a country and region. Throughout history, producing higher and stronger fasteners has been a persistent and never-ending desire of fastener manufacturers. The company has first-class technology and equipment in China, and can provide stainless steel fasteners with tensile strength ranging from 500MPa to 1500MPa.

Regarding the safety of fasteners

The common failure forms of fasteners include detachment, overall brittle fracture, dynamic elongation, and delayed fracture.

On June 12, 2010, a bridge pier on the Guiyang-Guangzhou Railway collapsed, resulting in one death and seven injuries. Preliminary estimates suggest that there is a problem with the connecting screws on the template, causing the steel template surrounding the bridge pier to loosen.

On June 29, 2010, a safety accident occurred in the "Space Trek" project of the Overseas Chinese Town Grand Canyon in eastern Shenzhen, resulting in 6 deaths and 10 injuries. According to the tourists sitting on the spaceship at the time, they heard someone shouting that the screws had fallen, and some of the cabins fell off.

Internationally, on May 23, 2004, the roof of the 2E terminal at Paris Charles de Gaulle Airport collapsed due to the failure of metal fasteners, resulting in four deaths and three injuries, including two Chinese citizens.

On June 29, 2010, American Airlines exposed a flight accident in which a Boeing 757 aircraft staged a "thriller" over the Atlantic Ocean due to a loose screw.

On July 2, 2010, the Republic of Moldova: Chrysler, a subsidiary of the "car king" Gerd Bonn, went bankrupt! The real reason for bankruptcy is actually its neglect of screws!

In recent years, accidents caused by fastener failures have occurred from time to time, and similar accidents are countless

Due to the failure of fasteners, they have taken lives and caused indelible pain to the families of the deceased, as well as huge property losses to society. While shaking and lamenting, we cannot help but ask: Why do such tragedies happen so frequently? When can we stop the tragedy and keep the pain away?

There is a phenomenon worth pondering: on March 11, 2011, a 9.0 magnitude earthquake occurred in the northeastern waters of Japan and triggered a tsunami, causing significant casualties and property damage. From the TV footage, we can see that many houses have been tested by a magnitude 9 earthquake, but have been swept hundreds of meters away by a rare tsunami in a century and still cannot stand down. One of the key factors for these buildings to survive is the high strength and safety of the fasteners used in these houses.

Fracture toughness and fatigue strength are important indicators of fastener safety performance, which are directly related to property safety. The outstanding performance of Japanese fasteners in strength and safety performance has taught global fastener practitioners a thought-provoking lesson.