Class 8.8+
Manufacturer Titanium Lug Wheel Bolts M14x1.5 & M12x1.25
- Yield Strength 828 MPa Min
- Seat Style 60° Conical / Ball R13
- Tolerance ISO 965 Class 6g
Direct Factory Precision Components
High-Performance Grade 5 (Ti-6Al-4V) Fasteners
Engineered to aerospace and motorsport tolerances. Featuring rolled threads, zero-shear heads, and physical vapor deposition finishes suited for demanding environments.
Anodized Gr5
Large Cap Head Hex Screws Anodized / Plain Fairing Bolts
- Process Multi-Axis CNC
- Coating Anodic Oxidation Type II
- Drive Type Low-Profile Hex Socket
DIN 912
Wholesale GR5 DIN912 Titanium Hex Socket Bolts M3–M24
- Tensile Str. 950–1050 MPa
- Standard DIN 912 / ISO 4762
- Fatigue Life > 2,000,000 Cycles
Unsprung Mass Cut
Gr5 M12/M14x1.5x30 Hex Lug Bolts Plain Finish Class 8.8+
- Density 4.43 g/cm³ (−44% Steel)
- Hex Head Forged Internal/External
- Salt Spray Test > 1,000 Hours Clean
Vibration Lock
Titanium M5 Bolt with Washer Stem Screw (Burnt Blue M5x16)
- Application Bicycle Stem / Moto Subframe
- Washer Type Captive Spherical Interface
- Finish Thermal Anodized Blue
Wear Resistant
High Quality GR5 Titanium Alloy Socket Head Bolts & Nuts
- Machining Swiss CNC Precision Cut
- Hardness 36 HRC Min
- Thread Type Coarse & Fine Pitch Available
DIN 7991
DIN7991 Titanium Countersunk Hexagon Flat Head Bolts M3–M8
- Head Angle 90° Precision Countersink
- Surface Roughness Ra 0.4 µm (Rolled)
- Inventory Immediate Warehouse Dispatch
PVD Titanium
ZFTI Class 8.8 Gr5 Titanium Flange Bolt UNF / Metric Thread
- Flange Design Integrated Load Distributing
- Coating PVD Titanium Nitride Options
- Service OEM / Custom Buyer Logo
Geographic & Engineering Context
Engineering Grade 5 Titanium for Encamp's Alpine Extremes
Situated in the heart of the parish of Encamp, Andorra, industrial operations, luxury alpine motorsports, and civil installations face a severe combination of microclimatic stressors. Resting at altitudes extending above 1,250 meters—and functioning as the primary transit artery to the high-mountain pass of Port d'Envalira and the Grandvalira ski domain—Encamp is characterized by sharp thermal cycling, massive chemical de-icer application (primarily magnesium and sodium chlorides), and high mechanical vibration loads.
In conventional structural and automotive maintenance, structural grade 8.8 or 10.9 zinc-plated carbon steel hardware undergoes rapid stress degradation in Encamp. This occurs via hydrogen-assisted cracking and galvanic blister corrosion triggered by snowpack melt, brine concentration, and freeze-thaw expansion cycles. Commercial pure titanium (Grade 2), while impervious to chloride pitting, lacks the requisite sheer strength and proof-load rating required for critical automotive suspensions, cableway assemblies, and downhill cycling suspension links.
This is where Grade 5 Titanium (Ti-6Al-4V, Werkstoff 3.7165) establishes technical superiority. Offering a minimum tensile strength of 895 MPa to 1,050 MPa with a fracture toughness value ($K_{IC}$) exceeding $55\text{ MPa}\cdot\text{m}^{1/2}$, Gr5 fasteners supply high-tensile resistance while decreasing unsprung mass by 44% compared to structural steel. Its spontaneous formation of a self-passivating titanium oxide ($\text{TiO}_2$) barrier makes it impervious to winter road de-icing agents and sub-zero atmospheric condensation.
| Alloy Specification | Tensile Strength ($R_m$) | Yield Strength ($R_{p0.2}$) | Density ($\rho$) | Fatigue Endurance Limit | Corrosion Rate (Alpine De-icers) |
|---|---|---|---|---|---|
| Gr5 Ti-6Al-4V (Annealed/Cold Rolled) | 950 – 1050 MPa | 880 MPa | 4.43 g/cm³ | 510 MPa (10⁷ cycles) | < 0.001 mm/year (Immune) |
| Grade 8.8 Quenched Steel (DIN 898-1) | 800 – 830 MPa | 640 MPa | 7.85 g/cm³ | 380 MPa | 0.120 mm/year (Accelerated pitting) |
| Grade 10.9 Alloy Steel (Zinc Plated) | 1000 – 1040 MPa | 900 MPa | 7.85 g/cm³ | 420 MPa | 0.095 mm/year (Hydrogen embrittlement risk) |
| A4-80 Stainless Steel (AISI 316) | 800 MPa | 600 MPa | 8.00 g/cm³ | 320 MPa | 0.015 mm/year (Crevice risk under salts) |
Funiencamp Aerial Infrastructure
Cable transit, gondola anchorages, and snowcat groomers require high fatigue tolerance at temperatures down to −25°C where carbon steels transition to brittle behavior.
High-Performance Mountain EV Fleets
EV wheel hub assemblies and unsprung mass reduction. Lowering rotational inertia directly counteracts battery drain during continuous elevation gain up the Encamp gradient.
Alpine Enduro & DH Racing
Andorran downhill cycling teams demand DIN 7991 countersunk and M5/M6 stem fasteners that eliminate catastrophic shearing over fractured granite tracks.
Market Dynamics 2025–2030
Fastener Sourcing Trends Across Andorra & Pyrenean Hubs
Key economic and industrial factors influencing high-tensile hardware supply chains in the Encamp commercial corridor.
Transition to Factory-Direct Baoji Supply
Local workshops in Encamp increasingly bypass intermediary distributors in Barcelona and Toulouse, sourcing mill-traceable custom lots directly from certified Baoji manufacturing plants to eliminate a 35% mark-up.
Electrification of Alpine Commercial Fleets
Andorra's national decarbonization mandates are transitioning fleet vehicles to battery power. Fleet maintenance managers specify Gr5 Ti-6Al-4V wheel bolts to minimize wheel assembly rotating mass and increase regenerative braking efficiency.
EN 10204 3.1 Traceability Mandates
For both structural tourism lifts and competitive rally vehicles registered in Encamp, engineers mandate complete heat-number chemical and mechanical verification to ensure components withstand extreme shear loads.
Operational Integrity
Why Engineers & Contractors Partner With Yevzo
Baoji Titanium Valley direct-scale production coupled with European-grade dimensional quality control.
Source Factory Footprint
Operating from Fenghuang 3rd Road High-Tech Zone, Baoji, we secure prime titanium sponge and bar stock directly at the origin, eliminating speculative material pricing for our clients.
Cold-Rolled Threading
Unlike standard machined fasteners that sever grain flow lines, our threads are fully rolled under hydraulic pressure, elevating continuous root shear tolerance by up to 30%.
Comprehensive Testing
Every delivery includes spectral chemical verification, metallurgical grain boundary verification, optical profile projection, and optical torque testing matching ISO and DIN criteria.
Custom Engineering ODM
Whether producing bespoke DIN 6921 flange forms or reverse-engineering proprietary racing lugs via STEP / DWG files, prototypes ship in 7 business days.
Procurement Questions
Frequently Asked Questions by Encamp Buyers
Direct technical answers addressing customs clearing, galvanic isolation, torque protocols, and material grades.
How are customs clearance and DDP handled into the Principality of Andorra?
Andorra is outside the EU customs union but participates in special trade agreements. We ship under DDP (Delivered Duty Paid) or DAP via DHL/FedEx Express directly to your address in Encamp. All customs declarations, commercial invoices containing HS codes 8108.90, and certificates of origin are handled for rapid processing at the Sant Julià de Lòria / Farga de Moles border.
How do we prevent galvanic corrosion between Gr5 titanium bolts and magnesium or aluminum parts?
Because titanium sits at a noble anodic index (+0.05V) relative to aluminum (−0.90V) or magnesium (−1.60V), direct exposure to moisture with winter salts can induce galvanic transfer in the softer base metal. For assemblies in Encamp, we specify our Type II anodic barrier or PVD treatment, and advise applying a copper-free, nickel-based anti-seize paste (such as Ti-Prep) or PTFE isolator washers.
What torque conversion factor should be used when switching from 10.9 steel to Gr5 titanium?
Because titanium's modulus of elasticity ($E \approx 113.8\text{ GPa}$) is approximately half that of structural steel ($E \approx 210\text{ GPa}$), Gr5 exhibits twice the elastic elongation under comparable clamp loads. Using anti-seize grease, tighten Grade 5 titanium to approximately 80%–85% of dry steel torque specifications to avoid over-stretching threads while maintaining optimal clamping pre-load.
What is the standard Minimum Order Quantity (MOQ) for non-standard bolt geometries?
For catalog DIN/ISO bolts, our MOQ starts at 10 to 30 units. For custom CNC-turned fasteners made to drawing (such as M14x1.25 floating ball-seat wheel fasteners or cross-drilled racing caliper bolts), our prototyping run starts at just 50 units, followed by scalable tiered pricing for volume production runs.
Request an Engineering Quote for Encamp Delivery
Send your specifications, drawings (DWG/STEP/PDF), or standard DIN requirements directly to our metallurgical engineering group. Get full quotation details with delivered pricing within 24 hours.