Baoji Chuanglian New Metal Material Co., Ltd. manufactures Titanium Alloy Half Round Torx Head Screws M8 using Ti-6Al-4V (Grade 5) material, delivering exceptional tensile strength of 1100 MPa. These precision-engineered fasteners feature M8 x 1.25 pitch threading with lengths ranging from 10mm to 60mm, each weighing approximately 5g per 20mm length. The half round head design incorporates T40 Torx drive for enhanced torque transmission, while passivation treatment ensures superior corrosion resistance. With over ten years of titanium machining expertise and ISO 9001 certification, our manufacturing facility in Baoji City guarantees dimensional accuracy and consistent quality through comprehensive inspection protocols from raw material verification to final product testing.
The Ti-6Al-4V alloy composition provides an optimal balance between strength and weight reduction. At just 4.43 g/cm³ density, these screws deliver weight savings of approximately 45% compared to equivalent steel fasteners while maintaining mechanical integrity.
The aluminum-vanadium alloying elements create a dual-phase microstructure. This metallurgical structure enables the screws to withstand operating temperatures up to 400°C without degradation. The material's natural oxide layer forms instantly upon exposure to atmosphere, creating a protective ceramic coating that prevents galvanic corrosion in multi-material assemblies.
| Parameter | Specification |
|---|---|
| Material Grade | Ti-6Al-4V (Grade 5) |
| Thread Size | M8 x 1.25 mm pitch |
| Available Lengths | 10mm - 60mm |
| Head Style | Half Round with T40 Torx |
| Tensile Strength | 1100 MPa minimum |
| Weight Reference | ~5g per 20mm length |
| Surface Treatment | Passivation |
| Quality Standard | ISO 9001 certified |

The half round profile offers distinct functional benefits across demanding applications. The smooth dome contour eliminates snagging hazards in robotic systems and medical equipment where cables or sterile barriers must move freely around fastener points.
In aerospace and motorsport environments, this low-profile geometry reduces aerodynamic drag. The rounded surface distributes contact stress more evenly than conventional button heads, preventing stress concentration that could initiate fatigue cracks under vibration.
The T40 Torx drive system provides six-point contact versus traditional hex socket designs. This configuration allows higher installation torque without cam-out or drive recess damage, essential when working with high-strength Titanium Alloy Half Round Torx Head Screws M8 in precision assemblies.
Our passivation process enhances the naturally forming titanium dioxide layer to achieve uniform thickness and coverage. This controlled oxidation creates a non-reactive barrier resistant to chlorides, saltwater spray, and oxidizing acids.
Unlike stainless steel fasteners that may suffer pitting corrosion in marine environments, these screws maintain structural integrity in continuous seawater exposure. The passive layer self-repairs if scratched, providing automatic protection against localized corrosion initiation.
Chemical processing facilities benefit from this inert surface when handling aggressive media. The screws resist sulfuric acid, nitric acid, and alkaline solutions that would rapidly degrade conventional materials.


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Titanium Product Manufacturing
Baoji Chuanglian New Metal Material Co., Ltd specializes in manufacturing high-quality titanium and rare metal products. With over ten years of experience, we produce titanium rods, plates, tubes, fasteners, and customized components. Our products meet strict national and international standards, ensuring durability and reliability. We cater to industries such as aerospace, medical, and petrochemical, providing high-performance titanium solutions tailored to customer needs.
Precision Titanium Machining
Equipped with advanced CNC machines, we offer precision machining services, including cutting, milling, drilling, and turning. Our experienced technicians ensure high accuracy and quality in every component. By continuously upgrading our technology, we meet complex machining demands for various industries. Whether you need standard titanium parts or custom-designed solutions, we provide efficient and reliable services.


Strict Quality Control
We maintain a rigorous quality control system from raw material selection to final inspection. Every product undergoes thorough testing to ensure superior performance and longevity. Our titanium products have been trusted by global companies for years, earning a reputation for reliability. With strict adherence to quality standards, we guarantee high-quality products with on-time delivery.
Global Titanium Solutions
Serving industries worldwide, we provide professional titanium solutions, from production to after-sales support. Our products are widely used in aerospace, medical, marine, and industrial fields. We focus on customer satisfaction, offering customized services and technical assistance. With a commitment to innovation and quality, we strive to build long-term partnerships and deliver high-value titanium products globally.


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Why Choose Us?
Decades of Expertise
With over 10 years of experience, we deliver precise, high-quality titanium products tailored to industry standards.
Customized Solutions
We provide customized titanium solutions to meet your specific needs, ensuring optimal performance and satisfaction.
Advanced Technology
Our cutting-edge machinery ensures precise manufacturing, offering innovative and reliable titanium solutions.
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We offer excellent customer service, fast delivery, and reliable after-sales support worldwide.
Every production batch undergoes spectrometric analysis to verify aluminum and vanadium percentages meet Grade 5 specifications. This prevents material substitution and ensures consistent mechanical properties.
Dimensional inspection utilizes Go/No-Go thread gauges to confirm 6g tolerance class fitment. Thread geometry verification prevents cross-threading and ensures proper preload distribution when torqued to specification.
Tensile strength validation through destructive testing confirms heat treatment efficacy. Rockwell hardness measurements (HRC 30-39 range) verify that solution treatment and aging cycles achieved target properties throughout each production run.

Aerospace manufacturers deploy these fasteners on exterior panels and access doors where weight reduction directly improves fuel efficiency. The Titanium Alloy Half Round Torx Head Screws M8 withstand thermal cycling from ground operations to high-altitude cruise without loosening or material fatigue.
Marine engineering projects utilize these screws for deck equipment and submersible housings. The combination of strength and seawater resistance makes them ideal for desalination plants and offshore platform installations requiring decades of service life.
Racing teams specify these fasteners for suspension components and aerodynamic bodywork. The weight savings contribute measurably to vehicle performance while the rounded head prevents injury during pit crew contact in high-pressure situations.
Proper installation requires T40 Torx bits manufactured to tight tolerances. Worn or imprecise tools will damage the drive recess, compromising reusability. Apply anti-seize compounds sparingly only on non-critical assemblies, as titanium's low friction coefficient provides natural galling resistance.
Torque specifications should account for titanium's lower modulus of elasticity compared to steel. Consult engineering guidelines for your specific application to achieve optimal preload without exceeding material yield strength.
Thread engagement length should be minimum 1.5 times nominal diameter for full strength development. In softer materials like aluminum, consider helicoil inserts to prevent parent material thread stripping.
Standard packaging includes sealed plastic bags containing 50-200 pieces depending on length, nested within protective cartons to prevent shipping damage. Custom packaging configurations are available for high-volume orders requiring specific unit counts.
Stock sizes ship within 15-20 days FOB from our Baoji facility. Our logistics team coordinates with international freight forwarders to optimize customs clearance and delivery scheduling. Non-standard lengths or special treatments require lead time discussion based on current production capacity.
What differentiates Grade 5 titanium from pure titanium screws?
Grade 5 (Ti-6Al-4V) achieves approximately three times the tensile strength of commercially pure titanium through alloying. The added aluminum and vanadium create a heat-treatable alloy suitable for structural applications requiring high stress tolerance.
Can these screws be reused after disassembly?
Yes, when properly installed with correct torque. Inspect threads and Torx drive for deformation before reuse. Unlike steel fasteners that may yield during initial installation, titanium's elastic properties typically allow multiple assembly cycles without permanent set.
Are special tools required for installation?
Standard T40 Torx bits fit the drive recess. Ensure bits meet ISO 10664 specifications for proper engagement. Magnetic bit holders help with positioning but avoid magnetizing the titanium screws themselves as residual magnetism may attract metal particles in sensitive environments.
How do these screws perform in cryogenic temperatures?
Titanium alloys exhibit improved toughness at low temperatures unlike carbon steel which becomes brittle. The material remains ductile down to liquid nitrogen temperatures (-196°C), making it suitable for aerospace and laboratory cryogenic equipment.
What surface finish options are available besides passivation?
Standard passivation provides excellent corrosion resistance for most applications. Anodizing can add color coding or further enhance surface hardness. Specific finish requirements should be discussed during order specification to ensure compatibility with your assembly process.
Baoji Chuanglian delivers precision-engineered Titanium Alloy Half Round Torx Head Screws M8 backed by rigorous quality control and responsive technical support. Contact our engineering team at info@cltifastener.com to discuss your specific fastening requirements and receive detailed product specifications.
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