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Enhanced Local Service: Our Authorized Representative in Iran
Specialized solutions for supplying industrial bolts and nutsIn large industries, the quality of fasteners is not just a choice; it also guarantees the safety, durability and reliable performance of equipment and projects. Therefore, by focusing on quality production and specialized supply of various types of industrial bolts, nuts and fasteners, we are committed to providing premium quality products that comply with global standards and suit the needs of the country...Read more -
Why Flat Washers Are Critical in Steel Building Connections
Small Part, Big RiskIn steel construction, structural safety is often linked to “big components” — beams, columns, and high-strength bolts. Yet industry statistics present a shocking reality: 38% of steel connection failures are associated with the improper use of flat washers.In one industrial case, a 3-story factory suffered bolt loosening, causing a column displacement of 18 mm. The repair cost exceeded USD $120,000 — all because flat wash...Read more -
Tianjin Longshi Fasteners × China Energy Group
From Component Supplier to Engineering-Grade Fastening Solution Partner Over a Decade of Cooperation1. From “Qualified Supplier” to “Engineering Partner”Before 2012, key fastening components for China’s heavy-haul railway and energy infrastructure relied heavily on imported products. Domestic high-strength fasteners struggled to satisfy requirements for fatigue life, anti-loosening performance, and extreme temperature/pressure environments.Read more -
TIANJIN LONGSHI FASTENERS Company History and Development
Company OverviewTIANJIN LONGSHI FASTENERS was established in 2008 and is headquartered in Hebei Province, China. The company focuses on the production of high-quality fasteners, including bolts, nuts, washers, screws, and anchors. From its early days, LONGSHI FASTENERS quickly gained recognition in the domestic market due to its excellent product quality and customer service. As the demand for high-quality fasteners increased globally, LONGSHI expanded its reach and...Read more