PSSTI GR5 Titanium Gold Flange Head Bolts Round Head Bolts M7*27
Material:Ti-6Al-4V (Grade 5)
Thread Pitch:Metric Standard
Finish:Electrochemical Gold
Direct Factory Export
Precision Titanium Auto & Motorsport Fasteners
Engineered from certified Ti-6Al-4V alloy, combining 45% mass reduction, exceptional fatigue resistance, and absolute immunity against atmospheric corrosion.
GR5 Titanium Bolts M6*25mm Umbrella Flange Head Inner Torx Bolts
Drive:Inner Plum (Torx)
Tensile:≥ 895 - 950 MPa
Application:Fairing & Engine Bay
GR5 Titanium Bolts M14*1.0*35mm Umbrella Head Hex Socket Bolts
Drive:Inner Hexagonal Socket
Pitch:1.0mm Fine Pitch
Use:Hub & Suspension Assembly
GR5 Titanium Bolts M4*15mm Hexagon Head Full Thread Bolts
Standard:DIN 933 Compliant
Yield:≥ 828 MPa
Process:Cold Forged / Rolled
Gr5 Titanium Screws Titanium T30 Torx Bolts for Performance Vehicles
Torx Type:Precision T30
Weight Delta:-44% vs 10.9 Steel
Application:Braking & Caliper Mounting
GR5 Titanium Bolts M6*60mm Button Head Hex Socket Bolts
Standard:ISO 7380 / Semi-Round
Length:60mm Shank
Hardness:HRC 32 - 38
OEM High Precision CNC Machined Titanium Slotted Hex Head Screw
Machining:5-Axis CNC Turned
Tolerance:± 0.01 mm
Customization:Per Client Drawing
GR5 Titanium Bolts M5*20mm Countersunk Head Hex Socket Bolts
Standard:DIN 7991 Flat Head
Angle:90° Countersunk
Profile:Aero Aerodynamic Surface
Lazio & Motor Valley Integration
Engineering Application Scenarios Across the Rome Metropolitan Region
Serving precision mechanics, Tier-1 motorsport constructors, and high-performance tuning ateliers across Rome, Guidonia Montecelio, Pomezia, and Latina.
Vallelunga Circuit & Track-Day Dynamics
Autodromo Vallelunga Piero Taruffi, located just north of Rome, demands uncompromising structural dependability. Our GR5 titanium wheel studs, brake rotor retaining bolts (M5/M6), and caliper mounting hardware dramatically eliminate unsprung rotational mass. Reducing peripheral weight at the wheel assembly enhances transient directional response, mitigates rotational inertia, and withstands sustained track surface friction up to 450°C without structural crystallization or thermal creep.
Supercar Restomod & Tuning Hubs in Lazio
The expanding automotive workshops throughout Rome's industrial belt (Via Tiburtina, Via Pontina) cater to discerning collectors of Italian and German performance platforms. Integrating titanium exhaust manifold stud kits (M10×1.25) eliminates common shear failure and seizing caused by differential thermal expansion between aluminum cylinder heads and stainless or inconel headers. Our physical vapor deposition (PVD) finishes resist extreme thermal cycling while providing an authentic visual standard.
Tyrrhenian Coastal Atmospheric Protection
Vehicles driven along the coastal corridors of Ostia, Fiumicino, and Civitavecchia encounter high levels of airborne saline aerosols and ambient moisture. Unlike cadmium or zinc-plated steel fasteners that succumb to oxidation and galvanic bridging, Ti-6Al-4V forms a continuous, spontaneous titanium dioxide (TiO2) passivation film. This provides indefinite resistance to chloride pitting, making it the premier choice for exposed chassis, undertray, and suspension linkage assemblies.
Material Engineering Whitepaper
Comparative Metallurgical Specifications: Grade 5 vs. Automotive Steel
Engineered to satisfy stringent CE automotive component directives and DIN / ISO metric mechanical fastening thresholds.
| Material Designation | Yield Strength (Rp0.2, MPa) | Tensile Strength (Rm, MPa) | Density (g/cm³) | Strength-to-Weight Ratio (kN·m/kg) | Corrosion Mechanism (Saline Air) |
|---|---|---|---|---|---|
| Navzo Ti-6Al-4V (Grade 5 Titanium) | ≥ 828 | ≥ 895 - 1000 | 4.43 | 214 | Immune (Spontaneous TiO2 Passivation) |
| High-Tensile Carbon Steel (Grade 10.9) | 900 | 1000 - 1040 | 7.85 | 127 | Rapid Oxidation upon Plating Wear |
| Austenitic Stainless Steel (A2-70 / 304) | 450 | 700 | 7.90 | 88 | Susceptible to Crevice Pitting in Chlorides |
| Marine Stainless Steel (A4-80 / 316) | 600 | 800 | 8.00 | 100 | Moderate Resistance; High Mass Penalty |
Procurement Insights
Emerging Automotive Fastening Trends in Rome and Central Italy
1. Electric Vehicle (EV) Light-Weighting Mandates
With strict Low Emission Zones (Fascia Verde) enforced throughout Rome's historic center, the transition toward battery-electric conversion and performance hybrids has surged. Tier-2 automotive engineering facilities in Lazio are systematically converting unsprung structural fasteners to Ti-6Al-4V. Shaving critical kilograms off battery containment enclosures, steering knuckles, and subframes directly counteracts battery mass penalties, optimizing energy efficiency per kilowatt-hour.
2. Cold-Forged Shank Integrity over Pure Machining
Roman automotive engineers and fleet maintenance managers increasingly specify cold-forged blanks with rolled threads rather than pure chip-cut threads. Cold thread rolling preserves uninterrupted metallurgical grain boundaries along the thread roots, significantly improving continuous fatigue life under cyclic high-RPM vibrations. Navzo applies strict German DIN 912, 933, and 7991 standards to ensure complete dimensional compliance.
3. Specialized High-Density PVD Thin-Film Coatings
Modern luxury performance restorations in the Lazio region demand both technical performance and aesthetic perfection. Beyond standard electrochemical anodizing, buyers now prioritize PVD (Physical Vapor Deposition) coatings. PVD forms an ultra-hard surface layer (over 2000 HV micro-hardness) that withstands abrasive torque-wrench engagements without stripping, flaking, or discoloration during repeated wheel changes.
Direct From Baoji Titanium Valley
Navzo Precision Titanium Co., Ltd.
Founded on January 10, 2011 on Yucai Road, High-tech Development Zone, Baoji, Shaanxi, China—the globally recognized epicentre of titanium raw material smelting and precision machining. Being situated directly within China's Titanium Valley shortens our raw material supply chain, ensuring pure, unadulterated Ti-6Al-4V sponge and ingot traceability with certified Mill Test Reports (MTR) according to EN 10204 3.1 standards.
As an on-site verified manufacturer maintaining an Alibaba store rating of 4.9/5 and ranked #4 in export sales volume for titanium bolts, we control the entire lifecycle under one unified quality management protocol—from high-speed heading and 5-axis CNC turning to cold thread rolling, PVD coating, and optical sorting inspection.
- 100% Traceable Mill Test Certified Material (ASTM B348 / AMS 4928)
- Multi-axis CNC centers & cold thread rolling for fatigue resistance
- Dedicated OEM/ODM capabilities from CAD (STEP, DWG, PDF) to finished part
- Certified CE export compliance with express logistics servicing Rome & Lazio
Technical & Commercial Clarifications
Frequently Asked Questions by Italian & European Buyers
Addressing engineering safety thresholds, CE compliance, galvanic compatibility, and direct-factory logistics to Rome.
Q1 Are Navzo titanium fasteners CE certified and compliant with EU vehicle regulations?
Yes. Our fasteners conform strictly to European Union technical harmonization directives for automotive safety and structural integrity. Material traceability is verified through EN 10204 3.1 inspection certificates, guaranteeing exact chemical stoichiometry (Ti-6Al-4V) and certified tensile yield properties required by Italian automotive testing authorities.
Q2 How do we prevent thread galling when installing titanium fasteners into Italian alloy blocks?
Titanium threads have a high coefficient of friction when torqued directly against aluminum or titanium without lubrication. We recommend applying a premium anti-seize paste containing copper, molybdenum disulfide (MoS2), or nickel flake. Furthermore, for critical wet assemblies, this interface barrier prevents galvanic micro-current transfer between disparate metals.
Q3 What are the standard lead times and customs arrangements for Rome and Lazio?
Standard catalog fasteners (M4 to M14 metric stock) ship within 48 to 72 hours via DHL/FedEx Express, arriving at Rome Fiumicino (FCO) or local customs warehouses in 4 to 6 business days. For container-load commercial distributor batches, sea-air multimodal transit directly into Civitavecchia Port is coordinated with complete TARIC code export documentation.
Q4 What torque values should be used when replacing factory Grade 10.9 steel bolts?
Because Grade 5 titanium possesses an elastic modulus of approximately 114 GPa (roughly half that of high-tensile steel's 210 GPa), elongation under load differs. When using anti-seize lubricant, torquing to 80%–85% of the OEM dry steel specification typically achieves the correct clamping preload without overstressing thread roots. Exact torque tables are provided upon inquiry.
Q5 Can Navzo manufacture non-standard racing wheel lugs or custom suspension bolts?
Yes. Our internal CNC engineering department regularly processes custom OEM/ODM production based on client STEP, DWG, or PDF technical drawings. Whether your project calls for specialized 12-point race drive profiles, integrated captive conical washers, or specific fine pitch threadings (e.g., M12×1.25, M14×1.5), we supply rapid first-article inspection samples prior to volume production.
Q6 What surface treatments are best suited for high-temperature exhaust environments?
For exhaust manifolds, turbo downpipes, and catalytic connection flanges subject to sustained temperatures exceeding 400°C, we advise utilizing our precision-polished natural finish or specialized vacuum PVD thermal coatings. Anodized color films begin oxidizing and fading above 350°C, whereas raw polished Ti-6Al-4V maintains structural and cosmetic stability without micro-flaking.
Connect Directly With Our Baoji Engineering Team
Send your drawings, bill of materials, or distribution requirements today. Receive comprehensive technical quotations, material test reports, and volume tier pricing within 1 hour.