GLOBAL INDUSTRIAL FASTENER SOLUTIONS
Rigorous Quality Assurance
Adhering to international standards with 100% material traceability and advanced testing to ensure zero-defect reliability.
Decades of Industry Expertise
Specializing in high-strength fastening systems across offshore, construction, and heavy machinery sectors for over 15 years.
Robust Supply Chain Resilience
Optimized warehousing and strategic logistics partners guarantee stable lead times and rapid global distribution.
Tailored Engineering & OEM
Comprehensive technical consulting and precision manufacturing based on your unique engineering specifications and drawings.
SINCE 2008
Your Strategic Partner for High-Precision Fastening Solutions
As a leading manufacturer in the precision fastener industry, Tianjin Longshi specializes in delivering high-performance bolting solutions tailored for critical infrastructure. For over 15 years, we have integrated advanced cold-forging technology with meticulous craftsmanship to produce high-tensile fasteners that meet stringent international standards including ISO, DIN, and ANSI. Our commitment to engineering excellence ensures that every bolt and nut we deliver provides maximum safety and durability in heavy-duty applications.
- 100% Material Traceability
- Custom Engineering Support
- Advanced Salt Spray Testing
PRIMARY PRODUCT CATEGORIES
Precision Fastening Systems for Global Industries
High-Strength Fasteners
Our Grade 8.8/10.9/12.9 high-tensile bolts are engineered for critical applications. Featuring black oxide or phosphate coating, these fasteners deliver superior fatigue resistance and tensile strength.
Studs & Threaded Rods
Precision studs and fully threaded rods for robust connections. Offered in various materials and lengths, with durable black coating options for enhanced durability and anti-seize properties.
Precision Hex Nuts
Complement your bolting solutions with our range of precision hex nuts. Available in black oxide or black phosphate finish, ensuring secure and reliable fastening for all industrial applications.
Stainless Steel Fasteners
Experience ultimate corrosion resistance with our SS304 & SS316 fasteners. Available with a durable black passivation finish, they ensure longevity in harsh, demanding environments.
Longshi Manufacturing: The Power Behind Precision
Leading the industry with 20 years of technical expertise and a state-of-the-art shared factory system.
Global Application & Engineering Solutions
Providing high-strength fastening solutions for critical industries, ensuring safety and durability in the most demanding environments.
Wind Power
Reliable fastening systems for wind turbines and energy infrastructure.
Infrastructure
High-strength systems for bridges and railway projects.
Heavy Industry
Durable fasteners for mining and excavation machinery.
Oil & Gas
Corrosion-resistant solutions for energy piping systems.
Global Trust, Proven Performance
Hear from our valued partners worldwide on Longshi’s commitment to quality and service.
