Precision cold-forged and CNC-milled Grade 5 Ti-6Al-4V fastener kits. Fabricated to exceed DIN/ISO tolerances, reducing unsprung mass by 44% compared to alloy steel while eliminating galvanic and thermal fatigue.
Precision CNC machined Grade 5 titanium, physical vapor deposition (PVD) nitride black finish, rolled threads to DIN standards for exotic motorsport and supercar hubs.
High-temperature expansion resistant stud kit with 12-point aero copper/locking nuts. Thermal cycling fatigue resistant for extreme racing and performance turbos.
Designed for high-boost engine blocks. Offers consistent clamping torque under extreme thermodynamic loading, fully polished finish with certified zero thread run-out.
5-axis CNC multi-face milled brake rotor delivering extreme rotational inertia reduction, rapid heat dissipation, and micro-tolerance dimensional stability under heavy braking.
Aerodynamic low-profile drive heads preventing cam-out and stripping. Complete metric range M4–M10 engineered for fairings, brake callipers, and chassis mounts.
Integrated bearing flange distributing clamp loads across delicate magnesium and aluminum castings without requiring washer hardware. Hot-forged hex head structure.
CNC micro-serrated base preventing vibrational back-out on severe harmonic assemblies. Available in raw polished, PVD carbon black, and custom rainbow anodizing.
Compact 12-point multi-hex format allowing ultra-tight socket clearance in motorsport bell-housings and suspension knuckles. High shear capacity Grade 5 titanium.
Positioned at the geographical heart of the Ebro Valley logistics triangle, Zaragoza represents one of Southern Europe’s most demanding epicenters for automotive parts manufacturing, logistics hubs, and advanced machinery prototyping.
Serving the supply lines surrounding Stellantis Figueruelas and associated Aragon automotive tier suppliers, our custom titanium screw kits deliver crucial weight savings to counteract heavy battery modules in next-generation electric and hybrid drivetrains.
Located within short transport reach of the Ciudad del Motor de Aragón (Alcañiz), our fasteners undergo validation under real circuit stresses. We supply high-stress wheel bolts, brake rotor titanium kits, and exhaust hardware for world-class superbike and endurance teams.
The Ebro basin's high-humidity agricultural, chemical, and renewable packaging installations require hardware immune to stress corrosion cracking. Grade 5 titanium offers lifetime stability against chloride, acid, and galvanic degradation.
Procurement engineers in Zaragoza must weigh mass reduction against shear reliability and thermal endurance. Below is the direct empirical comparison between Vunza Gr5 Titanium, 316 Stainless Steel, and Grade 10.9 High-Tensile Automotive Steel.
| Physical & Mechanical Properties | Vunza Titanium Gr5 (Ti-6Al-4V) | Alloy Steel 10.9 / 12.9 | A4-80 (316 Stainless) |
|---|---|---|---|
| Density (g/cm³) | 4.43 (44% weight reduction) | 7.85 | 8.00 |
| Tensile Strength (Rm MPa) | ≥ 950 - 1,050 | 1,000 - 1,220 | 800 |
| Yield Strength (Rp 0.2 MPa) | ≥ 880 - 920 | 900 - 1,100 | 600 |
| Strength-to-Weight Ratio (kNm/kg) | 215 - 237 | 127 - 155 | 100 |
| Corrosion Resistance in Salt Spray | Immune (5,000+ hrs no pitting) | Requires plating (Zinc/Phosphate) | Moderate pitting risks in chlorides |
| Thermal Expansion (10⁻⁶/K @ 20°C) | 8.6 (Closely matches alloy engines) | 11.5 - 12.2 | 16.0 |
| Magnetic Permeability | Non-magnetic (< 1.00005) | Ferromagnetic | Slightly magnetic after cold working |
Strategic supply chain evolution in PLA-ZA (Plataforma Logística de Zaragoza) and surrounding industrial belts is driving structural transformations in how design bureaus procure specialized fastener kits.
Engine builders and fleet managers across Aragon no longer order disparate fastener bins. OEM/ODM pre-packaged kits—featuring color-coded bolts, washers, and locking 12-point nuts packed specifically per cylinder head or suspension sub-frame—reduce workshop assembly errors by over 38%.
With automotive ISO/IATF audits tightening in Spain, Zaragoza purchasers actively reject unverified titanium stock. Demand has centered exclusively on producers with sponge-to-machined traceability, ensuring every lot carries verifiable chemical assays and tensile yield proof.
Standard bright-polished titanium is being replaced by PVD DLC (Diamond-Like Carbon), Nitride Black, and Burnt Titanium anodizing. These specialized surface finishes prevent galling without liquid anti-seize lubricants, vital for cleanroom electronics and precision race assemblies.
Operating directly out of Gaoya Village Industrial Zone in Baoji—globally recognized as China’s Titanium Valley—Vunza integrates direct access to raw material ingots with an elite multi-axis CNC fabrication facility.
Equipped with 3, 4, and 5-axis simultaneous CNC mills and Swiss-type lathes capable of maintaining tight axial tolerances down to 0.005 mm across custom screw kit configurations.
Adjacent to Baoti Group Industrial Park, our material pipeline is traceable directly back to pure titanium sponge. Every batch is certified with ultrasonic non-destructive testing.
Our dedicated bilingual engineering export team operates with rapid inquiry turnarounds, reviewing 2D/3D CAD models (STEP, IGES, DXF) to supply quotes and DFM feedback within 9 hours.
We tailor head geometries (Torx, 12-Point Aero, Hex Flange, Socket), laser mark custom part numbers, brand logos, and supply bespoke anodized kit packaging ready for retail.
Critical commercial, engineering, and import questions addressed for Spanish procurement managers and motorsport workshop engineers.