High-Strength Titanium Exhaust Stud Bolt Kit from China Suppliers | Factory Direct M8/M10 Fasteners for Motorcycles
Key Features
Titanium stud bolts maintain uniform clamping force on exhaust flanges even under repeated heat cycles up to 400 °C. Unlike steel studs that lose tension with thermal stress, these studs prevent exhaust leaks and keep the cylinder head tightly sealed to the flange over long-term use.
The precision-machined threads of titanium stud bolts resist rust, carbon deposits, and high-temperature bonding. This ensures smooth installation and removal, minimizing the risk of thread galling, seizure, or damage to aluminum cylinder heads, even after extensive use.
The internal hex drive allows hand-starting in tight engine spaces without using double-nut methods, reducing cross-threading. Lightweight titanium further improves handling during frequent exhaust maintenance.
Resistant to moisture, road salt, and exhaust condensate, titanium stud bolts maintain consistent torque over time. Unlike conventional steel, the threads do not seize or corrode, simplifying future maintenance and extending service life.
Optional titanium nuts and washers provide even flange compression. Standardized thread pitch and seating prevent mismatched components and reduce thermal expansion issues in mixed-metal assemblies.
With M8/M10 standard pitch and fixed lengths, titanium stud bolts fit most motorcycle exhaust flanges without modification. Correct thread engagement prevents bottoming, misalignment, or insufficient contact, ensuring a reliable and repeatable installation for performance motorcycle parts.
Installation & Maintenance Guidance
Technical Specifications
| Parameter | Details |
|---|---|
| Material | Grade 5 Titanium (Ti-6Al-4V) |
| Density | 4.43 g/cm³ |
| Tensile Strength | ≥ 900 MPa |
| Yield Strength | ≥ 830 MPa |
| Hardness | 34–36 HRC |
| Fatigue & Shear | High fatigue strength under cyclic loads |
| Corrosion Resistance | Excellent (moisture, salt, mild chemicals) |
| Operating Temp Range | up to ~400 °C continuous service |
| Standards Compliance | DIN 938; ISO 261 / ISO 965 |
| Parameter | Details |
|---|---|
| Diameter Range | M8/M10 |
| Length Range | 35–65 mm |
| Thread Pitch | M8 1.25, M10 1.55 mm |
| Thread Type | Metric Coarse |
| Drive Type | Hex Socket (internal) |
| Tolerance | ISO 6g |
| Parameter | Details |
|---|---|
| Surface Finish | Natural Titanium / Polished / Anodized / PVD Coating |
| Logo Engraving | Available |
| Packaging | Bulk cartons / Custom retail sets |
| OEM Customization | Supported (thread type, head style, finish, length) |
Application Scenarios
Titanium Stud Bolts keep exhaust headers tightly clamped even under repeated heat cycles, preventing leaks and minimizing gasket wear for reliable cylinder-head sealing.
Suitable for mounting near catalytic converters, turbo connections, or mid-pipe brackets, where steel fasteners corrode or loosen.
Supports upgraded exhausts that require steady flange alignment and reliable torque. High fatigue strength and anti-seize threads allow repeated removal, making them fit for aftermarket exhaust hardware.
