relyans
The Legacy Continues.
The Performance Accelerates.
Overview
Relyans engineers ultra-high tensile fastening solutions where failure isn’t an option. Built on 80 years of American manufacturing heritage, refined by German engineering discipline, and scaled through world-class global production.
We deliver high-performance fasteners with shorter lead times, competitive cost, and zero compromise on quality, supporting automotive and commercial vehicle programs that move the world.
6 global locations | 1,600 employees | $500M revenue
Product highlights
Critical Engine
Chassis & Suspension
Brakes & Wheels
Body & Exterior
Engineered Parts
Safety & Restraints
Sleeves & Bushings
Inspiring and empowering our partners to impact lives and the planet.
Engineered for Critical Applications
From powertrain to chassis to safety systems, Relyans supports nearly every major automotive OEM with precision-engineered fasteners (M3–M22) that withstand the most demanding operational environments.
What sets us apart:
- Advanced cold forming simulation & rapid prototyping
- In-house torque development & ultrasonic testing
- North American + Mexico manufacturing footprint
- Technical Development Center in Rochester Hills, MI
Our mission
We combine precision manufacturing, advanced testing capabilities, and deep application expertise to deliver ultra-high tensile fasteners for the world’s most demanding automotive and industrial programs
Advanced Equipment. Proven Processes. Global Scale.
Our Michigan and Mexico facilities combine state-of-the-art cold forming technology with disciplined process control. Integrated thread rolling, heat treatment, machining, and inspection capabilities ensure consistent quality across every production run.
Strategic advantage: Localized manufacturing reduces lead times while maintaining the technical rigor required for safety-critical automotive applications.
The Fastening Partner Built for What’s Next
Most suppliers offer parts. Relyans delivers fastening intelligence, collaborating with engineering teams to develop, validate, and optimize solutions from concept to production.
When development timelines compress or complex geometries demand innovation, our Rochester Hills Technical Center responds in days, not weeks. Because in automotive, speed and precision aren’t negotiable.
Partner with a supplier that thinks like an engineer.
Time is at a premium in our world today.
Automotive
Our automotive expertise in chassis, seat belts, brakes, and other systems is widespread. Our manufacturing capabilities allow us to produce bushings, screws, nuts, brake bolts, safety belt screws, pins and more.
Agriculture
Agricultural equipment operates in the most demanding conditions. Relyans delivers engineered fastening components for specialty applications, including engine assemblies, hydraulic systems, and high-stress structural connections where reliability is critical to uptime and performance.
Commercial Vehicles
Heavy-duty trucks and commercial fleets demand fasteners built for extreme durability. Our engine fasteners and high-strength components are engineered to withstand millions of miles, temperature extremes, and constant vibration while maintaining the quality standards fleet operators depend on.
eMobility
We serve the most widely known companies in eMobility. The applications include chassis systems, battery technology, interior and powertrain. Cold-headed standards and specials of all varieties are within our scope and experience.
New Energy
Relyans is leading the way in producing various components for solar and other new energy leaders. Our experience, technology and innovation allow our clients to run their production schedules without interruptions.
Manufacturing
We are a destination for many other manufacturing industries to meet their requirements for all types of fastener and stamping products. Whether you need simple or complex screws, nuts, brake bolts, spindles and latches, you can count on us.