China Factory Suppliers of Titanium Flanged Concave Hex Head Bolts for Motorcycles & Performance Vehicles
Key Features
The titanium flanged concave hex head bolts feature a sculpted concave head profile that removes excess material while preserving strength. This carefully balanced geometry helps reduce the unsprung weight in motorcycles and sports vehicles, improving suspension response and cornering stability.
The integrated head and flange design of each titanium flanged concave hex head bolt ensures even torque transfer across the contact area, minimizing stress concentration and maintaining fastening stability under vibration or repeated dynamic loads.
The curved head fits smoothly against fairings, calipers, and body panels, providing both aerodynamic efficiency and a refined appearance. Ideal for custom motorcycles and high-performance modifications.
Every bolt surface and thread is CNC-machined with rolled threading for superior fatigue resistance, tight tolerance, and uniform preload retention. These qualities make the bolt reliable across multiple installation cycles.
Available in anodized rainbow, blue, black, or gold finishes, the titanium flanged concave hex head bolt offers lasting corrosion protection with a premium appearance. Optional PVD coating and laser engraving support OEM branding or personalized customization.
Installation & Maintenance Guidance
- Apply a high-quality anti-seize compound when connecting titanium to titanium or titanium to aluminum to prevent galling.
- Torque bolts to specification using a calibrated wrench; over-torquing can deform the concave head.
- Inspect fasteners periodically after high-stress or track use to maintain clamping reliability.
Technical Specifications
| Parameter | Details |
| Material | Grade 5 Titanium (Ti-6Al-4V) |
| Density | 4.43 g/cm³ (≈55% lighter than steel) |
| Tensile Strength | ≥ 900 MPa |
| Yield Strength | ≥ 830 MPa |
| Hardness | 34–36 HRC |
| Fatigue & Shear | High resistance under vibration and cyclic load |
| Corrosion Resistance | Resistant to salt, moisture, and road chemicals |
| Standards Compliance | ISO 4162 / DIN 6921 |
| Parameter | Details |
| Diameter Range | M6–M10 |
| Length Range | 15–45 mm |
| Thread Pitch | 1.0–1.5 mm |
| Thread Type | Metric Coarse / Fine |
| Drive Type | Concave Hex |
| Tolerance | ±0.05 mm |
| Head Dimensions | Flanged, CNC curved – refer to table upon request |
| Parameter | Details |
| Surface Finish | Natural / Anodized / PVD Coating |
| Color Options | Rainbow / Blue / Black / Gold |
| Logo Engraving | Available |
| Packaging | Bulk cartons / Custom retail sets |
| OEM Customization | Supported (thread type, head style, finish, length) |
Application Scenarios
Commonly used in fairings, brake discs, and frame panels（M6–M8 × 20–35 mm）. Titanium flanged concave hex head bolts combine strength and precision. Their concave head ensures smooth aerodynamics and refined visual appeal in motorcycle customization.
Applied to lightweight body panels, undercarriage protection, and engine bay parts（M6–M10 × 15–40 mm）, these bolts reduce overall mass while maintaining reliable fastening under high vibration and dynamic loads.
Perfect for handlebar clamps, disc mounts, and frame joints（M5–M6 × 15–25 mm）. titanium flanged concave hex head bolts offer excellent weight balance, corrosion resistance, and long-term durability for riders seeking both performance and aesthetics.
Used in robotic arms, instrument frames, and lightweight machinery structures（M6–M10 × 20–50 mm）, these bolts deliver firm clamping with minimal added weight, supporting precise assembly and extended product lifespan.
Frequently Asked Questions (FAQ)
The sculpted concave head profile removes excess material to reduce unsprung mass in high-performance vehicles, while the integrated flange distributes torque evenly to prevent stress concentrations and maintain stability under dynamic loads.
Anti-seize compound prevents galling (cold welding) which can occur when mating titanium fasteners with titanium or aluminum components, ensuring smooth removal and reuse in the future.
We offer anodized finishes in rainbow, blue, black, and gold, as well as PVD coatings. Customization services include thread type adjustments, head style alterations, custom lengths, and laser logo engraving.
Yes. Made from Grade 5 Titanium (Ti-6Al-4V), these bolts feature a tensile strength of ≥ 900 MPa and a yield strength of ≥ 830 MPa, making them ideal for lightweight body panels, engine bays, and undercarriage protection.
Our standard sizing includes a diameter range of M6 to M10 and lengths ranging from 15 mm to 45 mm, compliant with ISO 4162 and DIN 6921 standards.