Direct supply from Baoji Yevzo Titanium Metal Co., Ltd. Every product is CNC machined from mill-certified titanium bar stock, featuring high tensile fatigue resistance, zero-corrosion in tropical seawater, and lightweight efficiency.
Countersunk fasteners (DIN 7991, ISO 10642, and ASME B18.3 flat heads) are essential where flush aerodynamic profiles or zero-obstruction clearance is demanded. However, in high-humidity, marine-saline environments like the Philippines archipelago, conventional alloy steel countersunk screws suffer severe premature failure due to stress corrosion cracking (SCC) and crevice oxidation underneath the 90° or 100° conical head.
Yevzo manufactures titanium flat head screws utilizing Ti-6Al-4V Grade 5 alpha-beta alloy and commercially pure Grade 2 titanium. Our CNC machining process maintains an exact 90-degree seating face runout under 0.02 mm, preventing localized point-loading and micro-galling during dynamic torque seating. This metallurgical stability provides substantial information gain for structural designers balancing joint pre-load against galvanic cell formation.
| Metallurgical Parameter | Grade 5 Titanium (Ti-6Al-4V) | Grade 2 CP Titanium | AISI 316 Marine Stainless | Grade 8.8 High-Tensile Steel |
|---|---|---|---|---|
| Yield Strength (Rp 0.2) | 828 MPa | 275 MPa | 290 MPa | 640 MPa |
| Ultimate Tensile Strength | 950 MPa | 345 MPa | 580 MPa | 800 MPa |
| Density | 4.43 g/cm³ | 4.51 g/cm³ | 8.00 g/cm³ | 7.85 g/cm³ |
| Chloride Pitting Resistance (PREN) | Immune (TiO₂ passivity) | Immune | PREN ~23-25 (Subject to crevice attack) | Zero (Rapid rust) |
| Modulus of Elasticity (GPa) | 114 GPa (Shock absorption) | 105 GPa | 193 GPa | 210 GPa |
| Typical Countersunk Head Angle | 90° (DIN/ISO) / 100° (Aerospace) | 90° (DIN 7991) | 90° / 82° (Imperial) | 90° Standard |
*Data verified via Yevzo Metallurgy Laboratory spectroscopic analysis and ASTM B348 annealed baseline metrics.
From the typhoon corridors of Luzon to the freeport industrial parks of Subic Bay, Batangas, and Cebu, titanium flat head screws and aerospace fasteners solve critical material fatigue challenges across four key regional pillars.
In yacht building, high-speed patrol catamarans, and offshore diving gear maintenance in Subic and Batangas ports, standard 304/316 countersunk screws suffer crevice corrosion under washers and flat head interfaces. Our Grade 5 flat head screws maintain unbroken ruthenium-level oxide films, providing lifetime immunity to warm tropical sea salt exposure.
Filipino motorcycle culture—centered on Yamaha Sniper, Mio, Aerox, and Honda Click underbone drag and circuit championships—relies on unsprung weight savings. Titanium flat head and umbrella head screws reduce rotational and chassis mass while withstanding intense vibration along provincial bypasses and urban tracks across Luzon and Visayas.
Manufacturing facilities inside PEZA zones (Laguna Technopark, Carmelray, Clark Freeport) assemble microelectronics and cleanroom robotics. Titanium flat head screws provide low magnetic susceptibility, high thermal stability during automated soldering, and zero particulate flaking compared to zinc-coated hardware.
Island cellular repeater masts, coastal solar arrays, and offshore monitoring stations in Palawan and Mindoro face continuous salt mist and monsoon cycles. Grade 2 and Grade 5 titanium flat head fasteners eliminate ongoing maintenance costs by preventing frozen, seized threads on solar racking and telemetry enclosures.
How procurement directors, mechanical engineers, and automotive racing fabricators in Manila, Cebu, and Davao are adapting their technical specifications for 2025 and beyond.
Tropical sea-surface temperatures in the Philippines often exceed 30°C, causing chloride-induced pitting and crevice corrosion under countersunk screw heads. Industrial plants in Batangas and Cebu are transitioning to Grade 2 and Grade 5 titanium to permanently eliminate catastrophic shear bolt failures in maritime handling rigs.
The modernization of Philippine Jeepneys into EV and Euro-4 platforms has created high demand for lightweight fasteners. Reducing chassis and battery box unsprung weight with Grade 5 titanium flat head screws and flanged lock nuts directly increases battery range and operational payload capacity on demanding routes.
Across Metro Manila and Pampanga, performance engineering shops and custom motorcycle builders demand raw and PVD-finished titanium screws with precision rolled threads. Sourcing directly from Baoji via air express allows local businesses to bypass domestic broker markups and maintain consistent tensile strength standards.
Founded in 2013 in the heart of Shaanxi's titanium industrial cluster, Yevzo Titanium Metal Co., Ltd. combines raw material sovereignty with Japanese precision CNC turning and multi-stage quality assurance.
Every flat head screw is turned from vacuum arc remelted (VAR) ASTM B348 Grade 5 or Grade 2 ingot with complete heat-lot chemical and physical mill test certificates.
Unlike cheap machine-cut threads that sever internal titanium grain flow, our threads are cold-rolled after head turning, increasing dynamic fatigue resistance by over 30%.
Every countersunk head diameter, 90° seat angle, and socket hex depth is verified using optical sorting machines and automated video coordinate measuring equipment.
Complete support for DHL/FedEx door-to-door air freight (3-5 days to Manila/Clark/Cebu) plus ocean consolidated cargo (LCL/FCL) under DDP, CIF, or FOB Incoterms.
Practical commercial and metallurgical answers for procurement officers, motorsport fabricators, and hardware importers in the Philippines.
Connect directly with Yevzo's technical engineering department in Baoji Titanium Valley. Whether you require standard DIN 7991 countersunk screws, customized motorsport wheel studs, or marine grade structural fasteners, our metallurgical engineers will evaluate your specification and deliver a formal quotation within 24 hours.