OEM Anodized
Anodized High Strength GR5 Titanium Alloy M6*15 Umbrella Head Bolts
- Material: Ti-6Al-4V Grade 5
- Design: Low-Profile Wide Flange
- Finish: PVD Anodized Multi-Color
Precision Catalog
High-Performance Custom Titanium Fasteners Ready for Export
Engineered for high strength-to-weight ratios, non-magnetic stability, and absolute pitting corrosion immunity in tropical and marine environments.
DIN 912 Standard
DIN912 Titanium Hexagon Socket Head Cap Screws Class 8.8 (M0.8-M24)
- Range: M0.8 to M24 CNC Machined
- Strength: Equivalent to Class 8.8+
- Property: Non-Corrosive Plain Finish
Industrial Stem
M5 M6 M8 Titanium Alloy Hexagon Head Industrial Grade Bright Bolts
- Application: Precision Mechanics & Bike Stems
- Surface: High-Gloss Micro Polished
- Thread Pitch: Rolled Precision Metric
Integrated Washer
Titanium M5 Bolt with Washer Stem Screw (Burnt Blue, M5x16mm)
- Structure: Captive Flange Washer Base
- Color: Electro-Chemically Burnt Blue
- Fatigue: High Shear Cycling Tested
Torx Star Drive
M8 Titanium Torx Head Bolt Gr5 CNC PVD Star Screw OEM
- Drive Type: Torx T40 / T45 Anti-Camout
- Treatment: Physical Vapor Deposition
- Weight Reduction: 44% Lighter Than Steel
Automotive Heavy-Duty
Titanium Alloy Gr5 M12 M14-1.5x30 Hex Lug Bolts Plain Finish Class 8.8
- Thread Size: M12x1.25 / M14x1.5 CNC
- Seating: 60-Degree Conical / Ball Seat
- Tensile Yield: ≥895 MPa / ≥828 MPa
Precision Torx
Titanium Alloy Bolts Gr5 Anodized Colored Torx M4 M5 M6*15 Screws
- Caliber: M4, M5, M6 Flanged Shell Bolts
- Finish: Ti-Oxide Interference Anodizing
- Application: Precision Enclosures & Fairings
Critical Safety Rotor
Titanium Brake Disc Bolt M6 X 20mm High-Integrity Rotor Screw
- Head Design: Recessed Flange Hex / Torx
- Thermal Stability: Maintains Clamping at 400°C
- Tolerance: Precision Ground Shank ISO 4762
Engineering Whitepaper
Structural Metallurgy & Mechanics of Titanium Flange Bolts
A rigorous review of Ti-6Al-4V fastener behavior under severe environmental, vibrational, and tensile stresses.
In critical fastening engineering, a titanium flange bolt offers distinct structural advantages over conventional socket-head or standard hex bolts paired with standalone washers. By integrating a broad circular collar directly beneath the bolt head, the flange substantially increases the load-bearing contact surface area. This configuration drastically lowers localized compressive stress (Hertzian contact stress) on fragile mating substrates such as aluminum alloys, carbon fiber composite matrices, and thin-gauge titanium sheet work.
Manufactured at Yevzo's factory using high-purity ASTM B348 Grade 5 bars (Ti-6Al-4V Alpha-Beta duplex phase alloy), these fasteners provide a yield strength surpassing 828 MPa and an ultimate tensile strength exceeding 895 MPa. When compared against Grade 8.8 high-tensile structural alloy steel, Grade 5 titanium produces equivalent or superior tensile yield while offering a profound 44% mass reduction (density: 4.43 g/cm³ versus 7.85 g/cm³). More critically for oceanic trade hubs like Singapore, titanium develops an instantaneous, self-healing, adherent amorphous Titanium Dioxide (TiO₂) passivation film that renders the fastener immune to chloride stress corrosion cracking, crevice attack, and microbiological fouling in warm marine-atmospheric cycles.
Fastener Material Benchmark: ASTM B348 Gr5 Titanium vs. Structural Alloys
| Mechanical & Physical Property | Yevzo Ti-6Al-4V (Gr5 Titanium) | Commercially Pure Ti (Gr2) | Stainless Steel 316 / A4-80 | Alloy Steel 8.8 Quenched & Tempered |
|---|---|---|---|---|
| Density (g/cm³) | 4.43 (Ultra-Light) | 4.51 (Ultra-Light) | 8.00 (Heavy) | 7.85 (Heavy) |
| Ultimate Tensile Strength (MPa) | ≥ 895 - 1000 | ≥ 345 - 450 | ≥ 800 | ≥ 800 - 830 |
| Yield Strength (0.2% Offset, MPa) | ≥ 828 | ≥ 275 | ≥ 600 | ≥ 640 |
| Modulus of Elasticity (GPa) | 110 - 114 (Dampens Vibration) | 102 - 105 | 193 | 205 - 210 |
| Pitting Resistance (PREN Equivalent) | Total Immunity in Seawater | Total Immunity in Seawater | Moderate (PREN ≈ 23-25) | None (Requires Sacrificial Plating) |
| Thermal Expansion (10⁻⁶/K @ 20°C) | 8.6 (Matches Carbon & Alloys) | 8.6 | 16.0 (High Thermal Mismatch) | 11.7 |
Thread metallurgy is another parameter where Yevzo implements precision manufacturing standards. Unlike conventional CNC lathe thread-cutting that slices through the internal grain boundaries of the titanium bar, our specialized OEM flange bolt production lines utilize hydraulic continuous thread rolling after CNC profiling. Thread rolling plastically deforms the material within precision dies, preserving unbroken circumferential grain lines that contour precisely into thread roots and crests. This cold work hardening increases root fatigue endurance by over 30%, which is critical in preventing dynamic cyclical shear failure in high-frequency vibratory operating environments.
Strategic Application Ecosystem
Deploying Titanium Flange Bolts Across Singapore's High-Tech Industries
Singapore represents Southeast Asia's foremost precision engineering, maritime commerce, and subsea innovation center. Yevzo fasteners are engineered to meet Singapore's stringent technical criteria.
Jurong Island & Petrochemical Plants
Singapore's Jurong Island refining supercluster handles corrosive hydrocarbons, chlorinated biocides, and high-salinity marine cooling waters. Our titanium flange bolts replace carbon steel B7/L7 and duplex bolts on heat exchanger flange faces, valves, and pumps, completely preventing chloride pitting and downtime.
Seawater Desalination & PUB Waterworks
Singapore's national water security relies heavily on Tuas Desalination Plants and reverse osmosis facilities. High-pressure RO membrane housing vessels operate in concentrated brine. Yevzo Gr2 and Gr5 titanium flange fasteners prevent crevice corrosion across piping tie-ins and membrane end-plates.
Offshore Marine & Keppel Subsea Engineering
From dynamic positioning thrusters to autonomous underwater robotic vessels (AUVs) stationed in Singapore deep-water research zones, our fasteners resist hydrostatic pressures up to 3,000 meters while eliminating weight from unsprung marine articulating joints.
Seletar Aerospace & Changi MRO
Seletar Aerospace Park is a primary hub for turbine maintenance and structural overhaul. Titanium flange bolts provide critical clamp tension across nacelle cowlings, interior brackets, and exhaust shroud ducting, passing strict non-destructive testing (NDT) standards.
Semiconductor Cleanrooms & Lithography
Wafer fabrication clusters in Woodlands and Tampines require hardware free from magnetic anomalies, particulate outgassing, and rust flakes. Our vacuum-cleaned, plain CNC-machined titanium bolts maintain absolute purity inside plasma etch chambers.
Performance Automotive & Cycling
Singapore's motorsport community, track facilities, and avid cycling culture demand weight savings. Our M6-M14 flange lug bolts and disc rotor screws reduce rotational inertia, enhancing acceleration response and steering sensitivity.
Industrial Market Outlook
Emerging Procurement Trends in Singapore's Industrial Landscape
Strategic economic initiatives in Singapore are transforming how industrial purchasing divisions select fastener alloys.
Additive & Subtractive Hybrid Integration
Singapore's National Additive Manufacturing Innovation Cluster (NAMIC) has spurred high-precision manufacturing. However, final interface connections cannot rely on raw 3D-printed threads due to micro-porosity. Procurement teams now pair 3D-printed titanium superstructures with CNC-rolled titanium flange fasteners to preserve absolute thread fatigue limits.
Total Life-Cycle Cost (LCC) Prioritization
Under the Singapore Green Plan 2030, corporate procurement teams evaluate full lifecycle replacement overhead rather than just initial purchase order costs. In harsh marine atmospheres, replacing corroded 316 stainless bolts every 18 months incurs massive labor expenses. Switching to permanent Grade 5 titanium flange hardware amortizes upfront costs within 2 years.
Direct-from-Source OEM Supply Resiliency
Singaporean supply chain directors have shifted away from third-party regional stockists who introduce markup and lack original mill test documentation. Direct procurement from primary source factories in Baoji Titanium Valley ensures full compliance with ASTM, DIN, and ISO standards alongside factory-direct pricing.
Why Source From Yevzo
Factory Direct Manufacturing Rooted in Baoji's Titanium Valley
Yevzo Titanium Metal Co., Ltd. operates out of the High-Tech Development Zone of Baoji, Shaanxi Province, China. Known internationally as "China's Titanium Valley," Baoji processes over 60% of the world's raw titanium sponge and structural bars. This geographic proximity gives Yevzo immediate access to top-grade ASTM B348 bar stock with verified heat numbers.
Operating continuously since 2013, we bridge direct metallurgical processing with bespoke OEM manufacturing. We run more than 100 high-precision CNC multi-axis machining units, cold heading stations, and hydraulic thread rolling systems. Singaporean buyers benefit from transparent pricing, customized thread pitch profiling (metric coarse/fine, UNC/UNF), and on-demand anodizing, laser marking, and individual bubble packaging.
Traceable Manufacturing
End-to-End Quality Verification Protocol
Each titanium bolt is tracked from raw billet to vacuum pack, ensuring zero structural defects.
1
Spectrometric Audit
Bar stock verified via optical emission spectrometers for exact Al (5.5-6.75%) and V (3.5-4.5%) elemental distribution.
2
CNC Profiling
Precision turning of flange diameter, transition radius fillet, and shank runout within ±0.01mm tolerance bands.
3
Hydraulic Thread Rolling
Continuous unbroken grain flow formed through hardened tool dies to enhance dynamic shear strength.
4
Ultrasonic Purge
Multi-bath chemical cleaning strips all machining lubricants prior to precision vacuum drying or PVD coating.
5
Coordinate Metrology
100% thread gauge verification (6g fit) and optical shadow graph dimensional validation before dispatch.
Procurement Intelligence
Frequently Asked Questions by Singapore Engineers & Buyers
Detailed metallurgical and logistical answers to support informed purchasing decisions.
What is the difference between Grade 2 and Grade 5 titanium flange bolts for Singapore projects?
Grade 2 is commercially pure (CP) unalloyed titanium with a minimum tensile yield strength of 275 MPa. It provides exceptional corrosion resistance in chemical acids, seawater cooling lines, and marine chlorination systems where mechanical shear loads are modest. In contrast, Grade 5 (Ti-6Al-4V) is an alpha-beta structural alloy heat-treated to achieve minimum tensile strengths of 895 MPa and yield strengths of 828 MPa. Grade 5 is mandatory for load-bearing dynamic structures, aerospace mounts, subsea robotic joints, and high-performance automotive and motorcycle applications.
How can Singaporean engineers mitigate galvanic corrosion when titanium flange bolts are used in aluminum structures?
Titanium has a relatively noble standard electrode potential (+0.05V vs SCE) compared to structural aluminum alloys (-0.75V to -0.90V). When operating in Singapore's humid, salt-laden ambient environment, direct contact can accelerate aluminum galvanic corrosion if an electrolyte bridges the metals. We recommend using a broad integrated flange bolt to distribute surface pressure, combined with isolating fluoropolymer/PTFE or glass-reinforced washers, and applying zinc chromate or nickel-based anti-seize paste to eliminate metal-to-metal electrolytic conduction.
How do Yevzo's rolled threads compare to cut threads in high-vibration applications?
Cut threads are machined using single-point cutters that physically sever the titanium metal's grain structure, leaving microscopic notch stress concentrators in the thread root. Yevzo utilizes hydraulic thread rolling dies that cold-form the metal under heavy continuous pressure. This process reorients the grain lines continuously across the thread root, creating a residual compressive stress barrier and yielding up to 30% higher fatigue resistance under cyclic vibration.
What are the freight lead times, customs procedures, and payment terms for delivery to Singapore?
For rapid prototyping and stock fasteners, air express shipments (via DHL, FedEx, or SF Express) reach Singapore (Changi Hub) in 3 to 5 business days from our Baoji facility. Bulk cargo shipments routed via Qingdao or Tianjin port to Singapore PSA take approximately 12 to 16 days. We support FOB, CIF Singapore, and DDP terms where we handle export customs directly. Accepted settlement terms include T/T, L/C, credit card, and PayPal in USD, EUR, or SGD.
Does anodizing titanium flange bolts degrade thread tolerances or induce hydrogen embrittlement?
No. Unlike electroplating or galvanizing steel, titanium anodizing is not an additive deposition process. It is an electro-chemical oxidation that grows a microscopic TiO₂ interference film ranging from 20 to 200 nanometers. This thin layer produces vibrant interference colors (gold, blue, purple, burnt rainbow) without altering standard 6g/6H thread pitch tolerances. Because titanium does not suffer from traditional plating-induced hydrogen embrittlement, the mechanical yield strength remains unaffected.
Can Yevzo manufacture titanium flange bolts to custom OEM drawings (e.g., cross-drilled heads, hollow cores)?
Yes. Custom OEM manufacturing is a core factory specialization. We routinely machine 12-point aerospace flanges, hollow weight-reduction bores, safety-wire cross-drilled heads, captive washer configurations, and special drive interfaces (such as Torx Plus, internal hex, and splines). We accept technical drawings in 2D (PDF, DWG) and 3D formats (STEP, IGES, SolidWorks).
Ready to Upgrade Your Fastener Reliability in Singapore?
Contact our engineering desk today with your dimensional requirements, project drawings, or target bills of materials. Receive a competitive manufacturing proposal, complete mill test report samples, and an estimated shipping schedule within 24 business hours.
Direct OEM Inquiries
Send project specifications, 2D/3D drawings, or RFQs directly to our engineering team.
Email: [email protected]
Direct Factory: Fenghuang 3rd Rd, Baoji High-Tech Zone, Shaanxi, China