ZFTI Titanium Hex Bolt Full Thread ISO 4018
- Dimension: M8 - M16 CNC
- Yield Strength: ≥ 828 MPa
- Finish: Plain Cleaned / Polished
Direct-Factory Sourcing
Precision Titanium Fasteners Catalog
Certified Ti-6Al-4V aerospace-grade hardware built for lightweight performance, show-level aesthetics, and total resistance to salt spray pitting.
GR5 Titanium Wheel Lug Bolts Lightweight
- Standard: Flat Head UNC / Metric
- Weight Reduction: ~44% vs 10.9 Steel
- Application: Custom Wheels & Stance
DIN912 Hexagon Socket Head Cap Screws
- Size Range: M0.8 - M24 Micro/Standard
- Corrosion Rate: Near Zero in Brine
- Standard: DIN 912 / Class 8.8+
GR5 Titanium Alloy Standard Bolts & Nuts
- Supply: Wholesale Bulk Stock
- Quality: Ultrasonically Tested Bar
- Lead Time: Immediate Air Dispatch
OEM Titanium Hex Nuts All Sizes M3-M20
- Thread Class: 6H Metric Precision
- Resistance: Chemical & Saltwater
- Material: CP Gr2 or Alloy Gr5
Titanium Wheel Bolts M14x1.5 / M12x1.25
- Execution: Rolled Thread Profiling
- Seat Type: Conical 60° / Ball Radius
- Fatigue Resistance: High Cyclic Loading
Motorcycle Step Flat Disc Brake Bolts
- Head Design: Hexagonal Step Washerless
- Function: Rotor Shearing Prevention
- Finish: PVD Burnished / Anodized
Anodized GR5 M6 Umbrella Head Bolts
- Aesthetics: Purple, Blue, Gold, Rainbow
- Process: Precision Multi-Axis Milling
- Purpose: Bodywork, Fairings & Bays
2013
Manufacturing Pioneer
100+
CNC Turning Centers
895+ MPa
Tensile Strength (Gr5)
0.00 mm/y
Marine Corrosion Rate
Local Structural Analysis
Engineering Titanium Dress Up Bolts for the Rijeka Ecosystem
A deep examination of microclimates, mechanical shear demands, and hyper-saline Adriatic exposure across Croatia’s premier port and industrial hub.
1. The Maritime Challenge: Countering Kvarner Gulf Salt-Spray and Micro-Galvanic Action
Rijeka sits at the deepest recess of the Kvarner Gulf, characterized by elevated humidity, intermittent Bura (Bora) winds carrying microscopic salt spray miles inland, and substantial chemical humidity from port cargo transshipment. Standard stainless steel hardware—even marine-grade AISI 316 (A4)—routinely falls victim to crevice corrosion and pitting when concealed under wash-plates, engine covers, or marine chassis cowls where oxygen cannot regenerate the chromium oxide film.
Yevzo’s Grade 5 (Ti-6Al-4V) and commercially pure Grade 2 dress-up bolts bypass this chemical bottleneck. Titanium instantly produces a stoichiometric, self-healing rutile-anatase ($TiO_2$) passivating layer upon contact with ambient atmospheric oxygen. In Rijeka’s brackish, chloride-rich waters, our bolts exhibit an oceanic corrosion rate virtually indetectable via conventional gravimetric testing (<0.0001 mm/year). For maritime fabricators based around the historic 3. Maj shipyards and luxury refit marinas extending toward Opatija, converting decorative and high-visibility exposed fasteners to titanium eliminates unsightly brown runoff stains and prevents high-stress joint freeze caused by chloride stress corrosion cracking (CSCC).
2. Automotodrom Grobnik & Adriatic Motorsport Tuning Dynamics
Just north of the city center lies Automotodrom Grobnik, an unforgiving proving ground renowned for high lateral G-forces, coarse asphalt aggregate, and extreme thermal transfers. Local race engine builders, hill climb contenders (spanning the Učka circuits), and high-performance motorcycle teams demand hardware that unites visual elegance with uncompromised structural integrity.
Unlike cast aluminum dress-up washers that crack under cyclic torquing, or commercial chrome-plated steel bolts that sheer during hard-braking thermal pulses, our CNC-machined titanium umbrella fasteners and step bolts provide a shear capacity exceeding 500 MPa and tensile strength surpassing 895 MPa. By integrating M5 and M6 anodized umbrella-head bolts across aerodynamic fairings, brake disc carriers, and suspension linkages, Grobnik track vehicles achieve up to 45% weight savings in unsprung and rotational mass without compromising the shear margins required under high-speed deceleration.
| Mechanical Property | Yevzo Ti-6Al-4V (Grade 5) | AISI 316 Marine Stainless | Class 10.9 Zinc-Coated Steel | 6061-T6 Anodized Alloy |
|---|---|---|---|---|
| Density (ρ) | 4.43 g/cm³ | 8.00 g/cm³ | 7.85 g/cm³ | 2.70 g/cm³ |
| Yield Strength ($R_{p0.2}$) | 828 MPa | 220 MPa | 900 MPa | 276 MPa |
| Ultimate Tensile Strength | 895 - 1000 MPa | 520 MPa | 1000 - 1040 MPa | 310 MPa |
| Adriatic Sea Pitting Resistance (PREN) | Immune (Passivated TiO²) | 23 - 25 (Pits over time) | 0 (Requires active sacrificial plating) | Susceptible to alkaline/acid brine |
| Thermal Expansion Coeff. (α) | 8.6 × 10⁻⁶ / K | 16.0 × 10⁻⁶ / K | 11.5 × 10⁻⁶ / K | 23.2 × 10⁻⁶ / K |
3. Architectural & Urban Luxury Infrastructure Across the Bay
The continuous modernization of Rijeka's coastal promenade, waterfront hotel venues, coastal residences, and private yacht slips necessitates decorative architectural hardware that endures intense exposure without maintenance overhead. Typical zinc passivated cap screws require periodic servicing and harbor unsightly oxidation streaks against glass panels, carbon fiber accents, and natural stone facades.
Our precision-machined DIN 912 socket cap and low-profile umbrella titanium bolts are deployed in premium marine architectural accents across the region. With custom physical vapor deposition (PVD) and micro-arc anodization, Yevzo offers structural jewelry: non-fading burnished bronze, electric blue, gold, and obsidian black finishes capable of withstanding both southern UV bombardment and intense marine moisture.
Macro & Regional Sourcing
Emerging Trends Across the Croatian Industrial Corridor
How the expansion of Rijeka Gateway terminal and modernization of the Primorje-Gorski Kotar manufacturing sector influence hardware procurement.
Lightweighting EV & Restomod Culture
Croatia’s cutting-edge hypercar engineering legacy has spurred specialized engineering workshops across the Rijeka industrial ring. Fabricators of performance EV conversions prioritize unsprung mass reduction, selecting our Grade 5 titanium wheel studs and dress-up bay hardware to lower rotational inertia while guaranteeing Class 10.9-equivalent clamping loads.
Superyacht Support & Refit Boom
With massive investment in nautical infrastructure along the Kvarner coast, Rijeka is consolidating its role as a premier superyacht service nexus. Local naval architects and marine engineers are displacing failure-prone bronze and marine-grade stainless cap screws in exposed deck areas with precision titanium socket fasteners that match carbon composites without risk of galvanic corrosion.
Direct-Factory Traceability Demands
Local procurement professionals have moved beyond intermediary re-sellers in Northern Italy and Central Europe. Direct-to-mill purchasing from Baoji ensures certified chemical heat-lot certificates (MTR per EN 10204 3.1), eliminating counterfeit titanium alloys and ensuring consistent tensile values across safety-critical joints.
Enterprise Manufacturing Authority
Why Global & Regional Specifiers Partner with Yevzo
Direct supply line from China's Titanium Valley (Baoji), combining metallurgy research with precision CNC automated production lines since 2013.
Source Factory in Baoji
Headquartered in the High-Tech Development Zone of Baoji, Shaanxi, we leverage proximate, verified virgin titanium sponge and forged billet supplies. Complete end-to-end processing eliminates distributor markups and retains strict pedigree control over raw materials.
Multi-Axis Precision Machining
Over 100 CNC machining stations and precision Swiss lathes operate 24/7. We cut, turn, and thread Grade 5 titanium at aerospace tolerances, guaranteeing class 6g thread profiling, clean undercut fillets, and zero micro-burrs on critical contact faces.
Spectrographic & Load Verification
Every shipment is accompanied by chemical composition and tensile elongation records verified against ASTM B348 requirements. Quality control includes calibrated thread go/no-go ring gauges, profile projectors, and optical run-out analysis.
End-to-End Export Logistics
Seamless execution under Incoterms 2020 including EXW, FOB, CIF, and full DDP delivery straight to your machine shop or warehouse in Rijeka, with all customs clearing, import documentation, and transit insurance handled cleanly.
OEM / ODM & Drawing Bespoke Production
Have non-standard metric lengths, custom step heights, unthreaded counterbores, or custom branding stamps? Send your 2D engineering drawings or 3D STEP files for engineering analysis, rapid prototype turnarounds, and custom small-batch production.
PVD & Anodizing Color Customization
Transform engine bays, custom builds, and marine fixtures with electrochemical anodization and PVD coatings. We achieve resilient gold, burnt blue, emerald green, and DLC diamond-like-carbon black without degrading root thread dimensions.
Procurement Clarity
Frequently Asked Questions for Rijeka Importers & Engineers
Actionable answers covering metallurgy, anti-galling protocols, customs procedures, and order execution.
How do Titanium Dress Up Bolts protect against the aggressive coastal air of Rijeka?
Unlike chrome-plated mild steel or ordinary 304 stainless hardware, Grade 5 (Ti-6Al-4V) titanium forms a continuous, inert titanium dioxide ($TiO_2$) passive layer upon surface exposure. This passive film instantly repairs itself if scratched and remains impervious to airborne chlorides generated by the Bura wind blowing across the Kvarner Gulf. The result is total resistance to crevice corrosion, galvanic surface rust, and brown oxidation bleeds on high-value assemblies.
Can Grade 5 Titanium dress-up fasteners replace Class 8.8 and 10.9 structural bolts?
Yes. Grade 5 titanium offers an ultimate tensile strength of 895 to 1000 MPa and a yield strength exceeding 828 MPa. This exceeds the mechanical strength benchmarks of Class 8.8 steel bolts (~800 MPa tensile) and closely matches Class 10.9 specifications, but with a 44% weight reduction. For dynamic track operations at Automotodrom Grobnik, replacing steel fasteners with titanium delivers critical unsprung weight reductions without yielding under intense shearing forces.
What measures must be taken to prevent galling when installing titanium into aluminum?
Titanium has a relatively low thermal conductivity, and dry threads can experience galling under high-torque assembly. We strongly advocate the application of a high-nickel, molybdenum disulfide, or specialized fluoropolymer anti-seize paste to all male threads prior to installation. Furthermore, when mating titanium with cast aluminum in salt-air environments, the use of anti-seize or dielectric isolating washers prevents micro-galvanic cell generation between the dissimilar metals.
What is the standard Minimum Order Quantity (MOQ) and lead time to Croatia?
For catalog items such as ISO 4018 hex bolts, DIN 912 socket screws, and standard M12/M14 lug bolts, our minimum order quantity starts at just 20 to 50 pieces. Custom CNC parts built to customer drawings typically require an MOQ of 100 to 200 units depending on raw stock diameter. Standard in-stock orders are packaged and dispatched via air express (DHL/FedEx/UPS) with delivery into Rijeka within 4 to 7 business days, including customs assistance.
Do your colored anodized dress-up bolts fade or peel over time?
No. Titanium anodization is not a dye or powder coat. It is an electrolytic process that modifies the thickness of the transparent titanium oxide layer, generating vibrant colors via optical light interference. Because it introduces zero organic pigments and adds no measurable dimension to thread pitch, the surface will not peel, flake, or crack under cyclic engine bay temperatures.
Which shipping terms and documentation are provided for Croatian customs clearance?
We provide full export declarations under EXW, FOB, CIF, or DDP terms. All shipments to Croatian buyers are accompanied by a commercial invoice, detailed packing list, air waybill/bill of lading, and mill test certificates (MTR) confirming chemical analysis and mechanical tensile testing per EN 10204 3.1 standards to facilitate immediate EU customs clearance.
Accelerate Your Project with Certified Titanium Hardware
Whether you need bespoke CNC dress-up hardware for motorsport, architectural accents for coastal installations, or bulk Gr5 standard fasteners delivered to your facility in Rijeka, our engineering team is ready to review your CAD files and bill of materials.