CNC Precision
OEM Precision CNC Machined Slotted Hex Screw
- Grade
- GR5 (Ti-6Al-4V) / GR2
- Standard
- DIN / ISO / Custom Drawing
- Tolerance
- ±0.005 mm (ISO 2768-m)
- Application
- Instrumentation / Automation
German Market Product Portfolio
Precision OEM Titanium Fasteners & CNC Turned Parts
Manufactured strictly in accordance with German DIN (DIN 912, DIN 933, DIN 7991) and international ISO standards. Cold-forged and 5-axis CNC-machined Grade 5 (Ti-6Al-4V) engineered for weight reduction, corrosion immunity, and extreme cyclic tensile strength.
High Temp M8
GR5 Titanium Exhaust Manifold Stud Bolt M8*1.25*45
- Dimension
- M8 × 1.25 × 45 mm
- Finish
- High Polish / Natural
- Thermal Exp.
- 8.6 × 10⁻⁶ /K
- Application
- Motorsport Exhaust Turbo
Full Thread
GR5 Titanium Bolts M8*20mm Hex Head Full Thread
- Standard
- DIN 933 / ISO 4017
- Tensile
- ≥ 895–1000 MPa
- Thread Class
- 6g Rolled Threads
- Weight Saving
- 44% vs 8.8 / 10.9 Steel
DIN 7991
GR5 Titanium M10*20mm Countersunk Hex Socket Bolts
- Head Type
- Countersunk Flat Head
- Drive
- Inner Hex Socket (DIN 7991)
- Finish
- Mirror Polished / PVD
- Application
- Aerodynamic Fairing / Chassis
Torx Flange
GR5 Titanium M6*25mm Umbrella Flange Torx Bolts
- Head Design
- Taper Umbrella Flange
- Drive Drive
- Internal Torx (T30)
- Torque Limit
- Superior Cam-Out Resistance
- Application
- Superbike & Racing Subframe
DIN 6923
GR5 Titanium Nuts M12*1.5 High Strength Hex Flange
- Pitch
- Fine Metric M12 × 1.5
- Geometry
- Serrated Flange Collar
- Proof Load
- ≥ 950 MPa
- Application
- Suspension / Axle Clamping
Heavy Duty
GR5 Titanium Big Pan Hexagon Head Bolts M10*18
- Head Style
- Enlarged Pan Hexagon
- Load Distribution
- Broad Clamping Face
- Yield Point
- ≥ 828 MPa
- Application
- German Machinery Frames
Conical Head
GR5 Titanium Bolts M6*31mm Tapered Head Socket
- Head Profile
- Weight-Optimized Conical
- Fatigue Life
- > 2 × 10⁶ Cycles
- Anodizing
- Blue, Gold, Purple, Black
- Application
- German Supercar & MTB Stems
2011
Baoji Titanium Valley Established
±0.005mm
Ultra-Tight CNC Machining Limit
44%
Weight Reduction vs Class 10.9 Steel
≤1h
RFQ Technical Response Time
100%
EN 10204 3.1 Lot Traceability
Technical Engineering Whitepaper
Why German Mechanical Engineering Replaces Alloy Steels with Ti-6Al-4V Grade 5
German engineering (Deutscher Maschinenbau) demands strict compliance with VDI guidelines, extreme fatigue durability, and absolute dimensional repeatability. While structural alloy steels such as 42CrMo4 (1.7225) provide high absolute yield strength, their structural weight and severe vulnerability to corrosion under humid or saline atmospheric conditions create prohibitive life-cycle maintenance costs.
Navzo Precision manufactures custom OEM fasteners from certified Grade 5 Alpha-Beta titanium alloy (Ti-6Al-4V), offering a strength-to-density ratio exceeding 210 kN·m/kg. Unlike austenitic stainless steels (A2-70, A4-80) which suffer from plastic deformation under excessive preload torque, Grade 5 titanium exhibits a yield point exceeding 828 MPa with an elastic modulus of 114 GPa, delivering exceptional elasticity under high dynamic vibration loads found in high-performance automotive and industrial robotics.
Rolled Threads (DIN 13-1)
Zero Notch Sensitivity
Non-Magnetic (μr < 1.00005)
Operating Temp: -250°C to +400°C
| Material Designation | Density (g/cm³) | Tensile Strength Rm (MPa) | Yield Strength Rp0.2 (MPa) | Elastic Modulus (GPa) | Corrosion Resistance | Target Sector in Germany |
|---|---|---|---|---|---|---|
| Navzo GR5 Titanium (Ti-6Al-4V) | 4.43 | 895 – 1050 | ≥ 828 | 114 | Complete passivation (TiO₂) | Motorsport, Aerospace, Robotics, Offshore |
| Stainless Steel A4-80 (1.4401) | 8.00 | 800 | 600 | 193 | High (Pitting possible in Cl⁻) | Chemical Processing & General Marine |
| High-Tensile Steel 10.9 (42CrMo4) | 7.85 | 1000 – 1040 | 900 – 940 | 210 | Poor (Requires zinc flake/galv) | Heavy Mechanical Engineering |
| Pure Titanium GR2 (W.Nr. 3.7035) | 4.51 | 345 – 450 | 275 | 105 | Exceptional in acids & saltwater | Electrolysis Anodes, Chemical Reactors |
*Testing standards conform to ASTM F136 / ASTM B348 and ISO 3506-1. Mill test certificates complying with DIN EN 10204 3.1 are dispatched with each shipping batch.
German Industrial Hub Integration
Localized Applications in German Key Industries
From the high-performance automotive corridors of Bavaria and Baden-Württemberg to the marine engineering hubs of northern Germany, Navzo custom titanium fasteners solve mission-critical fastening challenges.
Automotive & Motorsport
Serving race teams and Tier-1 suppliers near Stuttgart, Munich, and the Nürburgring. GR5 titanium wheel lug nuts (M14x1.25/1.5), turbo exhaust manifold studs, and connecting rod bolts minimize un-sprung rotational mass while withstanding exhaust gas temperatures up to 450°C without seizing.
High-Precision Automation & Robotics
Delivering micro-machined slotted and Torx screws for specialized machine tool manufacturers in North Rhine-Westphalia and Baden-Württemberg. Titanium’s low inertia accelerates multi-axis robotic pick-and-place end-effectors while non-magnetic properties protect sensitive optical encoders.
Aerospace & Defense Systems
Supporting aerospace suppliers across Hamburg and Bavaria with aerospace-grade Ti-6Al-4V fasteners certified under AS9100-aligned processes. Fully traceable cold-headed shank bolts provide high fatigue resistance, shear integrity, and zero hydrogen embrittlement.
Offshore Wind & Hydrogen Tech
Engineered for harsh North Sea marine environments (Bremerhaven, Rostock). Titanium Grade 2 and Grade 5 flange bolts remain completely immune to chloride stress cracking and galvanic salt spray corrosion, securing offshore wind turbine nacelles and green hydrogen electrolysis cell stacks.
Strategic Procurement Alignment
German Fastener Sourcing Trends & Compliance Demands
Purchasing managers in Frankfurt, Stuttgart, and Hamburg face strict regulatory updates, carbon footprint tracking, and the need for localized assembly compatibility.
LkSG Supply Chain Due Diligence
Under Germany’s Lieferkettensorgfaltspflichtengesetz (LkSG), Tier-1 and Tier-2 manufacturers require transparent audit trails. Navzo provides complete raw sponge traceability from Baoji mills, verifying environmental compliance, labor safety, and full material chemical breakdown.
Rapid Migration to Internal Torx (TX)
German automated assembly lines are aggressively moving away from slotted and standard hex sockets toward ISO 10664 Hexalobular (Torx) drives. Torx geometries prevent cam-out and tool slippage during robotic assembly, allowing exact torque retention without surface marring.
Total Cost of Ownership (TCO)
While initial per-piece purchase costs of titanium are higher than carbon steel, eliminating post-machining passivation, zinc electroplating, and frequent downtime in corrosive environments yields up to a 60% lower total life-cycle maintenance cost for German equipment builders.
Factory Capabilities
Why Sourcing Directly From Baoji Gives German Buyers an Advantage
Known globally as "China Titanium Valley," Baoji provides a vertically integrated ecosystem from raw titanium sponge smelting to ultra-precision CNC multi-axis finishing, eliminating intermediary markups and guaranteeing raw stock integrity.
EN 10204 3.1 Traceability
Every single titanium fastener production heat is accompanied by an authentic Mill Test Certificate detailing spectral chemical composition (Fe, C, N, H, O content) and physical mechanical values (tensile, yield, elongation).
Cold Forging & Thread Rolling
Rather than cut or turn fastener threads, Navzo utilizes cold/warm thread rolling dies. Continuous grain flow structure along thread crests and roots dramatically elevates fatigue endurance under cyclic vibration by up to 300%.
Specialized Surface Treatments
We provide in-house Type II & Type III electrochemical anodizing, physical vapor deposition (PVD titanium nitride/DLC black), and micro-arc oxidation (MAO) for hardness up to HV 1200 and zero galling during assembly.
CNC Machining Workshop
Optical CMM Inspection
Thread Rolling Lines
Verified Certifications
Procurement Knowledge Base
Frequently Asked Questions by German Engineering Buyers
Specific answers regarding DIN tolerances, customs clearing (Zoll), anti-galling guidelines, and mill quality verification.
How do your titanium fasteners comply with DIN 912, DIN 933, and ISO tolerances?
Our standard production lines machine and roll threads in full conformity with metric ISO 965-1 medium tolerance classes (6g for external bolt threads, 6H for internal nuts). We routinely supply DIN 912 (socket head cap), DIN 7991 / ISO 10642 (countersunk), DIN 933 (fully threaded hex), and DIN 6921 (flanged hex bolts) with dimensional verification measured on calibrated optical comparators and Go/No-Go thread pitch gauges.
Can you supply certified EN 10204 Type 3.1 inspection documentation?
Yes. Every OEM shipment destined for German industrial clients includes an authentic 3.1 test certificate. This document lists the exact chemical composition analyzed via optical emission spectroscopy, mechanical test results (tensile strength, 0.2% proof stress, elongation after fracture, reduction of area), and batch heat numbers tied directly to the raw Baoji titanium ingot.
How do German assemblers prevent thread galling (Kaltverschweißung)?
Due to the spontaneous formation of a thin titanium dioxide passive film, titanium-on-titanium and titanium-on-stainless threads can gall if tightened dry under high rotational speed. We recommend molybdenum disulfide (MoS₂) paste, nickel-based anti-seize, or our factory-applied PVD (TiN/DLC) coating or micro-arc oxidation treatments, which reduce the friction coefficient below μ = 0.12 and completely prevent thread fusion.
What are the shipping terms, customs handling (Zoll), and lead times for Germany?
We routinely ship under DDP (Delivered Duty Paid), DAP, or CIF terms directly to destinations including Frankfurt, Hamburg, Munich, and Cologne. Air freight express (DHL, FedEx, UPS) requires 4 to 7 business days, while bulk sea freight to Hamburg/Rotterdam takes approximately 28 to 35 days. We prepare the complete commercial invoice, HS coding (7106/8108 series), and EUR export documentation to ensure seamless clearance with German customs authorities.
What is your minimum order quantity (MOQ) for custom OEM drawings?
For catalog DIN standard titanium bolts and nuts held in stock, our MOQ starts at 100 to 200 pieces. For custom CNC components and non-standard geometries from customer CAD files (STEP, IGES, DXF, or PDF), we offer rapid engineering prototyping batches starting from 20 to 50 pieces before ramping up to mass volume production of 10,000+ units.
Can titanium fasteners be installed directly into carbon fiber or aluminum assemblies?
Yes. Titanium has a galvanic potential very close to carbon composite materials, making Grade 5 bolts the standard replacement for aluminum or zinc-plated steel screws in motorsport and aerospace carbon tubs to eliminate galvanic corrosion. When coupling with aluminum alloys in saline or outdoor conditions, an insulating barrier, anodizing, or specialized sealant is applied to prevent galvanic current flow.
Accelerate Your Engineering Project with Certified Titanium Fasteners
Send us your technical drawings (PDF, STEP, DWG) or standard DIN bill of materials. Our engineering and metallurgical team will review your specifications, tolerances, and surface requirements, providing a full technical quotation within 1 hour.