Factory Stock
≥ 895 MPa
Yield & Tensile Strength
4.43 g/cm³
43% Lighter Than Steel
EN 10204 3.1
Traceable Mill Certification
≤ 1 Hour
B2B RFQ Turnaround
Precision Engineered Fasteners
High-Performance Titanium Cylindrical Head Bolts & Hardware
Manufactured from pure Baoji Ti-6Al-4V Grade 5 bars using cold-heading and precision CNC thread-rolling technology. Fully compatible with metric DIN 912, ISO 4762, and custom OEM engineering specifications.
High Strength
GR5 Titanium M12*1.5 High Strength Hex Flange Nut
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Motorsport
M8 Gr5 Titanium Shoulder Screws Hex Socket Head
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Ready To Ship
GR5 Titanium Big Pan Hexagon Head Bolts M10*18
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Anodized
GR5 Titanium M5*25mm Burn Blue Cup Head Allen Screws
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Custom CNC
PSSTI GR5 Titanium Gold Flange Head Bolts M7*27
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DIN 912 Standard
GR5 Titanium M10*30mm Golden Cylindrical Head Bolts
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Precision Fit
GR5 Titanium M8*20mm Countersunk Head Hex Socket Bolts
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Engineering Whitepaper • Material Science
Metallurgical Integrity of Cylindrical Head Titanium Bolts
Why Czech precision tooling manufacturers and automotive developers are replacing Class 8.8, 10.9, and 12.9 alloy steel with cold-headed Ti-6Al-4V fasteners.
| Fastener Material Grade | Density (ρ) | Tensile Strength (Rm) | Yield Strength (Rp0.2) | Specific Strength Ratio | Corrosion Resistance | Magnetic Permeability |
|---|---|---|---|---|---|---|
| Navzo GR5 Titanium (Ti-6Al-4V) | 4.43 g/cm³ | ≥ 950 MPa | ≥ 880 MPa | 214.4 kN·m/kg | Superior (Passive TiO&sub2; Layer) | Non-magnetic (μ ≈ 1.00005) |
| Alloy Steel Grade 10.9 | 7.85 g/cm³ | 1000 MPa | 900 MPa | 127.4 kN·m/kg | Poor (Requires Galvanizing) | Ferromagnetic |
| Alloy Steel Grade 12.9 | 7.85 g/cm³ | 1220 MPa | 1100 MPa | 155.4 kN·m/kg | Susceptible to Hydrogen Embrittlement | Ferromagnetic |
| Stainless Steel A2-70 (AISI 304) | 7.93 g/cm³ | 700 MPa | 450 MPa | 88.3 kN·m/kg | Moderate (Prone to Pitting in Chlorides) | Slightly Magnetic after Cold Work |
| Stainless Steel A4-80 (AISI 316) | 8.00 g/cm³ | 800 MPa | 600 MPa | 100.0 kN·m/kg | High | Non-magnetic |
Grain-Flow Preserving Thread Rolling
Unlike standard machined fasteners that sever the continuous metallic crystal matrix, Navzo utilizes cold-worked and warm-rolled thread profiling. This increases thread root fatigue life by over 35%, critical for dynamic cyclic vibration in Czech motorsport transmissions and high-speed CNC spindles.
Strict DIN 912 / ISO 4762 Geometric Tolerances
Every batch of cylindrical head cap bolts is held to Class 6g external thread standards and Class 4h/6h concentricity. Deep internal hex sockets are broached with precision zero-draft tooling, preventing cam-out and stripping during automated torque assembly line integration.
Passivation & Galvanic Isolation Assurance
Our titanium fasteners undergo nitric acid passivation per ASTM F86 to build a dense, chemically inert titanium dioxide (TiO&sub2;) layer. When fastened into aluminum blocks or carbon fiber chassis components common in Czech automotive R&D, galvanic corrosion and electrolytic degradation are minimized.
Localized Integration
Czech Regional Industry Application Scenarios
Strategic deployment of Navzo cylindrical head titanium fasteners across the Czech Republic's specialized industrial belts.
Central Bohemia • Mladá Boleslav
Automotive & EV Battery Systems
The Czech automotive belt requires extreme weight optimization without sacrificing yield performance in crash structures. Grade 5 cylindrical head bolts are heavily utilized in electric vehicle (EV) battery enclosure tray fasteners, subframe linkages, and turbocharger mounting brackets where operating temperatures reach up to 400°C.
- In-wheel motor and high-voltage busbar containment assemblies
- Suspension knuckle and control arm mounting bolts
- Zero embrittlement during cyclic salt-spray road conditions
Prague • Vodochody Aerospace Corridor
Aero-Structures & LSA Aircraft
Czech Republic is a global leader in Light Sport Aircraft (LSA), ultralights, and unmanned aerial vehicles (UAVs). Our DIN 912 titanium socket screws serve wing spar linkages, landing gear actuation pivots, and engine firewall bulkhead fixtures requiring uncompromising weight-to-tensile ratios.
- Certified compliance with AMS 4928 / ASTM B348 aerospace stock
- Complete traceability via EN 10204 3.1 mill test inspection
- Significant payload capacity extension for autonomous commercial drones
Moravia • Brno & Zlín Precision Hubs
High-Speed CNC Machinery & Robotics
Moravian machine tool manufacturers rely on low-inertia cylindrical head bolts to fasten high-speed spindle chucks, optical encoder plates, and multi-axis articulated robotic end-effectors. Reducing rotational and translational mass directly decreases servo motor heat and improves positioning repeatability.
- Reduced dynamic moments of inertia in 5-axis milling heads
- Cryogenic valve assembly in semiconductor cleanrooms
- High vibrational damping capacity compared to carbon steels
Litvínov • Ústí nad Labem Chemical Belt
Chemical Processing & Desalination
For chemical reactor piping, heat exchangers, and pharmaceutical autoclaves in northern Bohemia, titanium cylindrical bolts resist wet chlorine gas, nitric acid, and organic chloride pitting where stainless steel alloys suffer catastrophic stress corrosion cracking.
- Available in ASTM Grade 2 (CP Titanium) for maximum corrosion resistance
- Zero maintenance shutdowns in aggressive brine and chloride environments
National Motorsport • Czech Enduro & Cycling
High-Performance Motorsport & Competitive MTB
Czech downhill racers, rally car builders, and custom superbike fabricators demand unyielding strength and distinctive aesthetics. Navzo's PVD-coated and burnt-blue cylindrical head screws provide extreme shear strength on floating disc brakes, triple tree clamps, and titanium rear link pivots.
- PVD Gold (TiN) and Burn Blue finishes for superior surface abrasion resistance
- Pre-drilled wire-locking cylindrical heads available for motorsport safety compliance
Market Dynamics
Strategic Trends in Czech B2B Titanium Fastener Procurement
Key economic and industrial factors transforming how Czech engineering firms source high-performance titanium fasteners.
Průmysl 4.0 Lightweighting Directives
Under the Czech National Industrial Strategy (Průmysl 4.0), machinery builders are mandated to cut energy consumption through dynamic mass reduction. Replacing structural steel fasteners with Grade 5 titanium cap bolts delivers an immediate 43% weight saving without requiring complete chassis redesigns.
Nearshoring & Direct Mill Procurement
Czech procurement departments are bypassing expensive European stockists and trading middlemen. Sourcing direct from certified Baoji factories cuts procurement overhead by 25–40% while preserving absolute material traceability and securing customized dimensional configurations.
PVD Wear-Resistant Coating Adoption
Industrial demand in Central Europe has shifted from raw titanium to vacuum Physical Vapor Deposition (PVD). Titanium Nitride (TiN) and Diamond-Like Carbon (DLC) coatings provide surface micro-hardness exceeding 2000 HV, eliminating thread galling during high-speed pneumatic automated assembly.
Manufacturing Excellence
Why Czech Industrial Buyers Partner with Navzo Precision
Located in the epicenter of China's Titanium Valley, Navzo integrates smelting, precision machining, and non-destructive quality testing under one roof.
100% Certified Baoji Titanium Ingot
We source raw titanium exclusively from prime aerospace-grade vacuum arc remelted (VAR) sponge titanium ingots. Every melt lot includes ultrasonic defect testing and chemical composition analysis conforming strictly to ASTM B348 and ISO 5832 standards.
Swiss CNC & Dedicated Heading Lines
Equipped with Tsugami and Citizen 5-axis sliding head CNC lathes alongside high-speed multi-station cold heading machines. We produce miniature M2 bolts up to heavy-duty M30 cylindrical bolts with diametrical runouts held within ±0.01 mm.
Stringent Metrology & Quality Control
Our quality lab is armed with Mitutoyo CMMs, optical profile projectors, Rockwell/Vickers hardness testers, tensile test benches, and spectrometer PMI verification machines. Zero-defect sampling guarantees flawless integration upon arrival in the Czech Republic.
Custom OEM/ODM Drawing Support
Send your STEP, IGES, or 2D PDF engineering drawings. Our engineering team conducts full Design for Manufacturability (DFM) reviews within 48 hours, providing tooling solutions for custom head profiles, hollow-core weight relief, and pre-drilled safety lock holes.
1-Hour European Timezone Response
Our dedicated international trade desk operates with an average response time of under one hour during Central European business hours, providing immediate technical consultations, formal quotations, and sample shipment coordination.
Reliable Czech Logistics & Customs DDP
Comprehensive freight management offering air express delivery directly to Václav Havel Airport Prague (PRG) in 4–6 business days, or cost-efficient rail transport via China-Europe Railway Express (Malaszewicze-Brno terminal) with full TARIC customs clearance support.
Technical & Commercial Clarifications
Frequently Asked Questions by Czech Procurement Teams
Key technical, regulatory, and logistics questions answered by our materials engineering team.
Which titanium grades are recommended for cylindrical head bolts?
For load-bearing structural applications such as automotive suspension, racing brake mounts, or machine spindles, we strongly advise Ti-6Al-4V Grade 5 (GR5). It provides a minimum tensile strength of 895–1050 MPa. For non-structural chemical processing valves or marine equipment exposed to aggressive chlorides, Commercially Pure Grade 2 (GR2) offers superior chemical passivity at a reduced yield strength of 275–350 MPa.
Do you supply EN 10204 3.1 Inspection Certificates?
Yes. Every batch shipped to the Czech Republic is accompanied by an authentic EN 10204 Type 3.1 Inspection Certificate. This document validates the chemical composition (Al, V, Fe, C, N, H, O content) and verifies mechanical properties including tensile strength, yield strength, elongation percentage, and ultrasonic test confirmation.
How can we prevent thread galling when installing titanium bolts?
Titanium alloys have a tendency to gall when driven against identical titanium threads or stainless steel female threads under high speed and torque. We recommend using a high-temperature copper, nickel, or MoS&sub2;-based anti-seize assembly paste. Alternatively, selecting our PVD TiN or DLC surface coatings drastically lowers friction coefficients and prevents galling.
What are the differences between DIN 912 and ISO 4762 cap screws?
DIN 912 and ISO 4762 are virtually identical in functional dimensions for most metric thread sizes (M3 to M30). Minor variances exist in socket depth tolerances and head transition radii on select larger diameters. Navzo manufactures to ISO 4762 standards by default while accommodating legacy DIN 912 drawings upon request.
What is the Minimum Order Quantity (MOQ) for Czech orders?
For standard catalogue DIN 912 cylindrical head bolts (such as standard M4, M5, M6, M8, M10 sizes in polished or burn blue finishes), our MOQ is typically 100 to 200 pieces per specification. For custom CNC machined parts made to customer drawings, prototype trial batches of 20 to 50 pieces are supported.
How does Navzo manage shipping and customs clearance into Czech Republic?
We provide multiple Incoterms including EXW, FOB, CIF, and full DDP (Delivered Duty Paid) to Prague, Brno, Ostrava, or Plzeň. We supply correct European Union TARIC classification codes (typically 8108909090 for titanium fasteners), commercial invoices, packing lists, and Certificates of Origin for smooth clearance.
Does titanium cause galvanic corrosion when fastened to carbon fiber?
No. Titanium has an electrochemical potential very close to carbon composite materials. Unlike aluminum or carbon steel—which suffer severe galvanic degradation when in direct contact with carbon fiber—Grade 5 titanium is completely compatible and serves as the aerospace standard fastener material for composite panels.
What surface treatment options are available for cylindrical head bolts?
We provide electrochemical anodizing (gold, violet, blue, green), thermal burn-blue gradient coloration, physical vapor deposition (PVD Gold, Black, Rainbow), electro-polishing, and fine micro-bead blasting. All finishes retain strict thread pitch tolerances without altering base mechanical properties.
Can you manufacture cylindrical head bolts with safety wire holes?
Yes. For motorsport, aerospace, and high-vibration power equipment, we offer precision cross-drilling through the cylindrical head facets or axial through-hole weight reduction. Wire-lock holes allow safety wiring in accordance with FIA and aviation regulatory requirements.
What is the standard production and shipping lead time to the Czech Republic?
In-stock metric fasteners ship within 24 to 48 hours. Custom CNC fabrication or large production runs (10,000+ pcs) require 15 to 22 business days. Air express courier via DHL, FedEx, or UPS delivers directly to your facility in the Czech Republic within 4 to 6 business days.
Initiate Your Czech Titanium Procurement Inquiry
Send us your bill of materials, target quantities, DIN/ISO standards, or custom CAD drawings. Our materials engineering and export logistics team will deliver a comprehensive, factory-direct quotation within 1 hour.