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High-Strength Titanium Exhaust Stud Bolt Kit from China Suppliers & Factory for Motorcycle Exhaust Replacement
Key Features
Stable Flange Clamping
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.
Anti-Seize Thread Performance
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.
Easy Hex-End Installation
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.
Reliable Threads in Harsh Conditions
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.
Matched Nuts and Washers
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.
Direct OEM Replacement
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
Anti-Seize Use:
Use high-temp anti-seize sparingly on reused studs; excessive lubricant can alter torque readings and reduce clamping reliability.
Thread & Surface Maintenance:
Inspect threads and mating surfaces during service intervals; titanium studs resist corrosion and galling, ensuring repeated removal without damage.
Technical Specifications
1. Material & Mechanical Properties
| 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 Temperature Range | up to ~400 °C continuous service |
| Standards Compliance | DIN 938; ISO 261 / ISO 965 |
2. Dimensional & Thread Data
| 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 |
3. Finishing & Customization Options
| 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
Motorcycle Exhaust Flanges
Titanium Stud Bolts keep exhaust headers tightly clamped even under repeated heat cycles, preventing leaks and minimizing gasket wear for reliable cylinder-head sealing.
High-Temperature Engine Points
Suitable for mounting near catalytic converters, turbo connections, or mid-pipe brackets, where steel fasteners corrode or loosen.
Performance & Aftermarket Exhausts
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.
Frequently Asked Questions
What are the benefits of using Grade 5 Titanium for exhaust stud bolts?
Grade 5 Titanium (Ti-6Al-4V) offers high tensile strength (≥ 900 MPa), low density (4.43 g/cm³), and excellent corrosion resistance. It maintains stable clamping force under repeated thermal cycles up to 400 °C without losing tension, preventing exhaust leaks.
Do titanium stud bolts prevent thread galling and seizure?
Yes. The precision-machined threads of titanium stud bolts resist rust, carbon build-up, and high-temperature bonding, which minimizes the risk of thread galling, seizure, or damage to aluminum cylinder heads during maintenance.
Should I use anti-seize lubricant during installation?
You should use high-temperature anti-seize sparingly, especially on reused studs. Avoid excessive application, as too much lubricant can alter torque readings and reduce overall clamping reliability.
Are these titanium studs direct replacements for OEM parts?
Yes. With standard M8 and M10 thread pitches (M8 1.25, M10 1.55 mm) and length ranges from 35mm to 65mm, they are designed to fit most motorcycle exhaust flanges directly without modification.
What customization options are available for these stud bolts?
We support OEM customization including custom thread types, head styles, overall lengths, and surface finishes (such as Natural Titanium, Polished, Anodized, or PVD Coating). Logo engraving is also available.