Which titanium grades do you machine most often?

Most orders use commercially pure Grade 2 titanium for corrosion-driven applications and Grade 5 Ti6Al4V (TC4) for high-strength fasteners and racing parts. Other titanium grades, rare metal materials and CoCrMo dental alloy can be supplied on request.

What machining tolerance can you hold on titanium parts?

Our 34 multi-axis (3/4/5-axis) CNC machining centers can hold tolerances down to 0.005 mm, depending on part geometry, size and material grade. Critical dimensions are confirmed during drawing review before production.

What is the minimum order quantity?

MOQ depends on the product: around 10 pieces for items such as sprint car titanium brake rotors, and typically 100 to 500 pieces for titanium bolts, studs, nuts and valve retainers. Samples are available for custom CNC parts.

Can you produce non-standard titanium parts from my drawings?

Yes. Our in-house R&D team designs machining solutions for complex, high-precision custom parts based on customer 2D/3D drawings or samples, including custom thread, head style, color anodizing and logo marking.

How do you control quality and material traceability?

Every process from titanium sponge to finished product is controlled under our quality system. Material certificates and inspection reports can be provided with each batch on request.

Where is your factory located?

Our factory is in Gaoya Village Industrial Zone, Baoji, Shaanxi, China, the region known as China's Titanium Valley, close to the Baoti Group Industrial Park and its titanium supply chain.

Republic of Korea Industrial Grade Engineering Direct

Titanium Countersunk Screws Manufacturers & Exporter for the Korea market

High-precision ISO 10642 / DIN 7991 countersunk titanium fasteners manufactured from Baoji raw ingots. Engineered for zero-drag semiconductor handling, high-stress EV battery fixtures, and Korean maritime robotics.

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Engineered Titanium Hardware for Korean Assemblies

Explore our production matrix of multi-axis CNC machined and cold-forged Grade 5 (Ti-6Al-4V) titanium components. Engineered to eliminate galvanic corrosion and decrease unsprung weight across critical industrial sectors.

Grade 5 Ti Manufactures Customized Gr5 Titanium Bolt Colorful Rainbow Custom Hex Socket Torx Motorcycle Screw RACING

Customized Gr5 Titanium Rainbow Torx Bolt

PVD Rainbow Anodized · Ti-6Al-4V · Multi-Torx Drive

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Flange Hex M6x30 M6x35 GR5 Grade Hex Head Titanium Wheel Flange Bolts for Motorcycle

M6x30 M6x35 GR5 Hex Flange Bolts

Forged Head · Smooth Bearing Surface · CNC Rolled

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Ultra-Slim High-Strength Titanium Disc Head Torx Flange Bolt with CNC Precision for Bicycle Parts

CNC High-Strength Titanium Disc Torx Flange Bolt

Low-Profile Torx Design · 0.005mm CNC Turning Precision

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DIN Standard M8 M10 M12 Gr5 Titanium Hex Head Racing Motorcycle Bolt DIN GB Standard

M8 M10 M12 Gr5 Titanium Hex Racing Bolts

Tensile Strength ≥ 895 MPa · Precision Metric Threads

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12-Point Flange Polished Gr5 Titanium 12 Point Flange Nut M10X1.25 for Automotive Racing

Polished Gr5 Titanium 12-Point Flange Nut M10X1.25

High Torque Capacity · Aerospace Standard Lock-Nut Design

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Wheel Assembly M7 X 24 M7X32 Titanium Mushroom Head Split Rims Screw 12 Point DIN Grade 5 Polished Finish Bolts for Car Wheel

M7x24 M7x32 Titanium Mushroom Head Split Rim Bolt

Mirror Polished Finish · 12-Point Metric Fastening

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Anodized Wheel Factory Supply Gr5 Ti6AI4V M14 X 1.5 8mm Hole Right Hand Thread Titanium Hex Anodized Wheel Nuts for Racing Car Modification

Gr5 Ti6Al4V M14x1.5 Anodized Hex Wheel Nuts

Hard-Anodized · 8mm Internal Relief · Lightweight Hub Fit

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PVD Coated 1/4-20 X 5/8 GR5 Titanium Alloy TORX Head Caliper Mount Bolts for Car Parts CNC Turning Process PVD Finish Minghai Brand

1/4-20x5/8" GR5 Titanium TORX Caliper Bolts

PVD Wear Layer · Caliper Mounting Precision · Anti-Galling

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2008

Factory Inception in Baoji

34Sets

3/4/5-Axis CNC Centers

0.005mm

Machining Tolerance Window

100%

Sponge-to-Part Traceability

Industrial Application Whitepaper

Localized Application Scenarios in the South Korean High-Tech Matrix

In South Korea's precision manufacturing clusters—from the semiconductor corridors of Gyeonggi-do (Suwon, Hwaseong, Pyeongtaek) to the smart mobility belts of Ulsan and the marine automation hubs of Busan—fastener performance cannot be compromised. Titanium countersunk screws (ISO 10642 / DIN 7991) have transitioned from exotic aerospace materials to fundamental components in zero-tolerance industrial systems.

Semiconductor & Cleanroom Robotics

Within extreme ultraviolet (EUV) photolithography, wafer transfer robotics, and chemical vapor deposition (CVD) tools, outgassing and particle shed must remain at zero. Grade 2 Commercially Pure and Grade 5 ELI titanium countersunk screws provide non-magnetic, corrosion-free flush fastenings. Their geometric profile eliminates vortex turbulence and prevents microscopic particulate entrapment inside laminar air chambers.

Electric Vehicles & Secondary Battery Trays

Korean tier-1 battery module suppliers in Cheongju and Ulsan demand fasteners with extreme shear capacity and galvanic stability. Titanium countersunk screws installed into carbon fiber reinforced polymer (CFRP) battery chassis avoid galvanic cell decomposition entirely—unlike standard zinc-coated steel—while shaving 44% of fastening weight across multi-cell pack enclosures.

Marine Hydrodynamics & Subsea Sensors

Shipbuilding giants and oceanic research institutions in Geoje and Busan implement DIN 7991 titanium countersunk hardware for subsea hulls and sonar casing arrays. The countersunk 90-degree head sits completely flush with composite hulls, minimizing drag coefficients and totally withstanding microbiologically induced corrosion (MIC) and aggressive chloride attack.

Market Intelligence & Industry Dynamics

Strategic Sourcing Trends in South Korea's Fastener Landscape

South Korea's modern manufacturing pivot towards hyper-precision and ESG compliance is shifting procurement behavior across Chaebol contractors and specialized engineering SMEs:

Strategic Trend	Engineering Demand Drivers	Technical Implication for Titanium Screws	Supply Chain Advantage (Vunza Baoji)
CFRP Structural Integration	Weight reduction in urban air mobility (UAM) and fuel-cell systems.	Zero electrochemical corrosion potential against conductive graphite fabrics.	Controlled surface passivation preventing micro-fretting in composite interfaces.
Cleanroom Traceability (Semicon)	Yield rate optimization in sub-2nm foundry cleanrooms.	Zero oil-film residues, ultrasonic citric acid cleaning, vacuum double-packaging.	Class-clean inspection and X-ray fluorescence (XRF) alloy chemistry certification.
High-Torque Drive Evolution	Automated robotic assembly lines rejecting hex socket stripping.	Shift toward Torx (Star) and 12-point flush heads for consistent seating torque.	CNC broached Torx sockets with tight dimensional tolerances preventing bit cam-out.
Supply Chain Resilience (China-KR Corridor)	Korean supply disruption concerns regarding European fastener lead times.	Just-In-Time (JIT) short-sea shipping via Qingdao/Tianjin directly into Busan/Incheon.	Rapid custom CNC turnaround under 14 days; factory direct pricing without middlemen.

Core Manufacturing Strengths

Vunza Titanium: Precision Engineered in China's Titanium Valley

Located directly adjacent to the Baoti Group Industrial Park in Baoji, Shaanxi, Vunza Titanium Industry Co., Ltd. (founded 2008) operates 34 sets of multi-axis (3/4/5-axis) CNC machining centers, dedicated cold heading machinery, and thread-rolling lines. We deliver consistent, certified fastener solutions configured specifically for strict Korean inspection protocols.

Sponge-to-Part Traceability

Every manufacturing campaign initiates with vacuum-arc remelted Grade 5 (Ti-6Al-4V) or Grade 2 ingot stock. Mill Test Certificates (EN 10204 3.1) verify tensile yields, chemical composition, and interstitial limits.

0.005 mm CNC Tolerance Window

Our 34 CNC centers hold microscopic countersink angles (90° / 100° / 82°) and rolled thread pitches to ±0.005 mm, ensuring uninterrupted feed in robotic automated screw fastening equipment.

Master Technicians (13+ Yrs Exp.)

Over 50% of our floor workforce possesses more than 13 years of specialized titanium machining experience, effectively mastering titanium's low modulus and preventing micro-chatter.

Prompt Korean Procurement Service

Verified supplier operational history on global trade platforms since 2008 with an average response time of under 9 hours, rapid drawing DFM reviews, and full Korean logistics coverage.

Procurement Intelligence

Frequently Asked Questions by Korean Engineers & Sourcing Teams

Clear, technically rigorous answers addressing metallurgical certification, customs clearance, surface modifications, and assembly ergonomics.

How do your titanium countersunk screws conform to KS (Korean Standards) and JIS/DIN standards?

Our titanium countersunk screws are primarily engineered according to ISO 10642, DIN 7991, and JIS B1194/KS B1024 standards. We provide standardized 90-degree flush head profiles (metric standard) as well as 100-degree aerospace countersink configurations. Crucially, our threads are cold-rolled rather than cut, creating continuous unbroken grain flow along the root radius, which yields fatigue resistance compliant with South Korea's high-stress electronic and automotive requirements.

Which titanium alloy grade is recommended for semiconductor tools vs. structural marine robotics?

For semiconductor chemical and wet processing environments where exceptional resistance to corrosive etchants (such as wet chlorine, nitric acid, and chlorine dioxide) is necessary, Commercially Pure Grade 2 (CP-Ti) or Grade 7 (Ti-0.15Pd) is optimal. Conversely, for structural assemblies in marine robotics, EV battery enclosures, or racing applications where high yield strength and vibration load are paramount, Grade 5 Ti-6Al-4V (minimum tensile 895 MPa, yield 828 MPa) or Grade 23 (Ti-6Al-4V ELI) is strongly specified.

How do you mitigate thread galling (cold welding) during high-speed automated installation?

Titanium alloys naturally generate a tenacious oxide layer that, under extreme friction and high rotational torque, can cause thread galling against matching internal threads. To solve this for Korean automated assembly lines, we provide specialized surface treatments including Micro-Arc Oxidation (MAO/Keronite), Physical Vapor Deposition (PVD) titanium nitride or carbon coatings, and solid molybdenum disulfide (MoS2) dry-film lubricants, preventing thread seizure even under dry torque conditions.

What documentation is included for South Korean customs clearance and incoming quality audits?

Every shipment to South Korea includes an authentic Mill Test Certificate (MTC) conforming to EN 10204 3.1 with traceable heat numbers directly linked to raw titanium sponge melts. In addition, we supply comprehensive First Article Inspection (FAI) dimensional reports, RoHS & REACH environmental compliance declarations, and certified alloy chemical spectroscopy analysis to ensure seamless entry through Incheon or Busan customs.

What are the MOQ terms and sample lead times for custom non-standard countersunk fasteners?

For standard catalogue sizes (M2 to M16), our minimum order quantity starts from 100 to 500 pieces depending on head style and finish. For completely custom non-standard fasteners machined to proprietary customer CAD drawings (Step, IGES, DXF), prototype evaluation samples can be produced within 5 to 7 working days. Batch mass-production is normally accomplished within 15 to 20 working days.

Accelerate Your Engineering Project with Certified Titanium Hardware

Whether you require standard DIN 7991 countersunk screws for cleanroom equipment or custom-engineered Grade 5 Torx fasteners for lightweight automotive platforms, our Baoji engineering center is prepared to review your specifications.

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