DIN Standard
Wholesale GR5 DIN912 Titanium Hex Socket Bolts Custom Size
- Standard: DIN 912 / ISO 4762
- Material: Gr5 Ti-6Al-4V
- Size Envelope: M3 – M20
Precision Catalog
High-Performance Titanium Fastener Solutions
Direct-from-factory Grade 5 (Ti-6Al-4V) and Grade 2 commercial fasteners. Every unit undergoes tight CNC thread rolling and multi-stage ultrasonic de-burring for immediate race or assembly integration.
Disc Brake
Bike Motorcycle Titanium Bolts Hex Step Flat Head Rotor Fastener
- Application: Brake Rotor Mounts
- Head Style: Stepped Flat Hex
- Surface: Micro-Polished
Anodized
Titanium Finish Bolt M6x12-35mm Modification Screw Burnt Blue
- Thread: M6 (Pitch 1.0mm)
- Color: Burnt Blue PVD / Anodized
- Tensile: ≥ 895 MPa
Heavy Duty
Motorcycle Titanium Bolts Hex Step Flat Head M8 1.25 Rotor Screws
- Thread Pitch: M8 x 1.25
- Shear Yield: High Torsion Rating
- Execution: CNC Precision Lathe
Cockpit
Titanium M5 Bolt with Integrated Washer Stem Screw Burnt Blue
- Dimension: M5 x 16mm
- Included: Integrated Captive Washer
- Application: Handlebar Stem Clamp
Automotive
Titanium Lug Wheel Bolts M14x1.5 & M12x1.25 Racing Hardware
- Seat Config: 60° Cone / Radius Ball
- Thread Rolling: Cold Forged Rolled Threads
- Weight Saving: -44% vs High Tensile Steel
Braking
Titanium Brake Disc Bolt M6 X 20mm Precision Caliper Rotor Screw
- Dimensions: M6 x 20mm
- Corrosion Index: Zero Salt-Induced Rust
- Standard: Custom Race Geometry
High Tensile
DIN912 Titanium Hex Socket Head Cap Screws Class 8.8 M0.8-M24
- Tensile Class: Class 8.8 / 10.9 Equivalent
- Thread Coverage: Full / Partial Metric
- Finish: CNC Machined Plain / Acid Pickled
2013
Baoji Facility Established
100+
CNC Turning & Milling Units
≥895 MPa
Grade 5 Tensile Strength
100%
Heat-Lot Chemical Traceability
Regional Application Focus
Engineering Fastener Solutions for the Pécs & Baranya Cycling Ecosystem
From the rugged gravel trails traversing the Mecsek Mountains to high-efficiency urban transport corridors connecting the University of Pécs, micro-mobility hardware demands specialized metallurgy.
Mecsek Terrain Endurance (MTB & E-Bike)
The limestone karst terrain and severe incline gradients characteristic of the Mecsek range impart intense shear forces and vibrational stress onto bike suspension linkages, brake caliper mounts, and crank spindles. Standard zinc-plated steel bolts frequently undergo fatigue stress cracking and severe surface pitting under humid woodland soil exposure. Upgrading to Gr5 Ti-6Al-4V socket head bolts delivers an ultra-high yield strength of 828 MPa, preventing fastener necking while dropping rotating unsprung mass on downhill and enduro builds.
Pécs Urban Commuting & E-Mobility
With municipal sustainability initiatives expanding dedicated commuter lanes throughout southern Hungary, urban bicycles and high-torque cargo e-bikes face continuous year-round service. Pécs experiences sub-zero winters where roadway municipal thawing salts and calcium chlorides accelerate galvanic oxidation on conventional fasteners. Our titanium hardware forms an instantaneous, passive titanium dioxide (TiO2) barrier layer, offering zero-corrosion performance when threaded into anodized 6061/7005 aluminum frame bosses.
Custom Framebuilding & High-End Road Tuning
The growing demographic of artisanal road cyclists, endurance randonneurs, and race clubs around Baranya County prioritize gram-saving mechanical configurations. Swapping stem faceplate bolts, seatpost clamps, and water bottle cage screws with our precision CNC-machined M5 and M6 hardware reduces weight by over 43% compared with carbon steel, while retaining clamping stiffness without the brittle snapping risk associated with low-tier 7075 aluminum screws.
Whitepaper Insight
Structural Transition: The Rise of Titanium in Southern Hungary
The Hungarian bicycle industry is undergoing a structural transition toward premiumization. In cities like Pécs—blessed with both steep historical cobblestone streets and extensive natural park trailheads—the proliferation of high-torque Mid-Drive e-bikes has rewritten mechanical load calculations. Standard grade 4.8 or 8.8 steel hardware frequently exhibits localized thread galling, head shearing, and galvanic staining due to the galvanic potential divergence between wet alloy frames and carbon-steel bolts.
By adopting Yevzo certified Ti-6Al-4V fastener kits, regional distributors, bicycle shops, and mobility assemblers eliminate field warranty claims tied to stripped bolt heads and rusty threads. Titanium fasteners exhibit exceptional fatigue life under cyclic dynamic loading—a critical attribute for brake disc rotors subjected to repetitive thermal cycling on long descents from Misina Peak.
Furthermore, the localized logistics corridor along European transport routes ensures straightforward customs integration for Hungarian importers operating through standard bonded warehousing, supported directly by our comprehensive export document workflows (EUR.1 support, mill test certificates, and full Incoterms flexibility).
| Mechanical / Chemical Metric | Gr5 (Ti-6Al-4V) Fasteners | Gr2 (CP Titanium) | Grade 8.8 Carbon Steel |
|---|---|---|---|
| Tensile Strength (MPa) | 895 – 1000 | 345 – 450 | 800 – 830 |
| Yield Strength (0.2% Offset, MPa) | 828 | 275 | 640 |
| Mass Density (g/cm³) | 4.43 | 4.51 | 7.85 |
| Fatigue Resistance (Cyclic Load) | Superior (Endurance limit >510 MPa) | Moderate | Subject to notch corrosion |
| Salt & Slush Road Spray | Immune (TiO₂ self-passivating) | Immune | Rapid red-rust development |
| Unsprung Mass Reduction | ≈ -44% vs. Steel | ≈ -43% vs. Steel | Baseline reference |
Core Manufacturing Advantage
Why Pécs Importers Partner with Yevzo Titanium
Operating since 2013 in Baoji—the heart of China's Titanium Valley—we maintain absolute control over the entire supply chain from raw sponge ingot smelting to microscopic thread inspection.
Titanium Valley Origin
Direct proximity to prime raw sponge titanium and metallurgical refining centers eliminates middle-tier markups and secures mill-certified ASTM B348 bar stock with verified heat numbers.
100+ Machining Units
Our workshop houses high-speed precision multi-axis CNC machines and cold-rolling tooling capable of forming un-cut, continuous grain-flow thread profiles conforming to Class 6g standards.
Stringent Metrology
Every batch undergo mechanical tensile proof loading, torque testing, optical profile projector verification, and Go/No-Go thread gauge screening prior to protective blister packing.
Flexible European Logistics
Seamless execution under FOB, CIF, or DDP terms. We handle direct air express shipments to Pécs-Pogány or Budapest hubs, accepting EUR, USD, and multiple banking channels.
Procurement Intelligence
Frequently Asked Questions by Hungarian Bicycle Sourcing Managers
Key metallurgical, logistical, and technical insights addressing procurement questions for bicycle workshops, OEMs, and distributors in the Pécs market.
Why should bike builders in Pécs select Grade 5 over Grade 2 for structural frame bolts?
Grade 2 is commercially pure (CP) titanium with a nominal yield strength of ~275 MPa. While exceptionally corrosion-resistant, it lacks the tensile strength required for high-stress cyclic components like stem faceplates, seatpost collars, disc brake rotor screws, and rear derailleur hangers. Grade 5 (Ti-6Al-4V) provides an alloyed micro-structure featuring over 828 MPa yield strength, safely matching or exceeding 8.8-grade high-tensile steel fasteners while delivering critical elasticity and resistance against fatigue under violent shock loads across Mecsek off-road circuits.
How can local mechanics prevent cold-welding (galling) when installing titanium bolts into aluminum frames?
Titanium possesses an affinity for self-passivating oxide skin, which can cause micro-frictional galling if driven dry into 6061 or 7075 aluminum bottom bracket shells or brake bosses. We strongly advise applying an anti-seize compound (copper-based paste, aluminum-complex paste, or specialized synthetic titanium assembly grease) prior to thread engagement. Furthermore, mechanics must employ calibrated torque wrenches, targeting approximately 75–80% of equivalent steel bolt torque values due to titanium’s lower coefficient of friction when lubricated.
What are the freight transit times and minimum order quantities (MOQ) for Pécs, Hungary?
For catalog items (standard DIN 912 M5/M6 stem screws, M8 brake bolts, disc rotor screws), our standard factory MOQ is as low as 20 to 50 pieces per specification, permitting localized retail shops and tuning studios to run lean inventory. Standard air express shipments (via DHL, FedEx, or UPS direct to Baranya County addresses) average 4 to 8 business days transit. For high-volume seasonal distributor stock orders, air freight or consolidated rail/sea shipping options under DAP or DDP terms are available.
Does anodizing or PVD burnt-blue coloring affect fastener tolerances and fatigue limits?
No. Our electrochemical anodization process generates color variation by modifying the refraction thickness of the native titanium oxide layer at the nanometer scale without adding bulk material coating. This ensures that precision Class 6g/6H thread engagements and socket hex tolerances remain 100% true to DIN specifications. PVD coatings like burnt-blue, oil-slick, and nitride gold also add negligible thickness while enhancing surface hardness and resistance against scratch abrasion.
Can custom bicycle component geometry be machined according to proprietary CAD drawings?
Yes. With over 100 CNC machining centers in our Baoji facility, our engineering department accepts STEP, DWG, DXF, and PDF drawings for bespoke suspension pivot axles, custom head-tube top caps, hollow-drilled weight-saving bolts, and bespoke titanium dropout studs. We generate rapid digital DFM (Design for Manufacturability) appraisals within 24 hours.
Optimize Your Supply Chain With Certified Titanium
Whether you are outfitting a competitive cycling racing team, upgrading an urban fleet for Pécs city transit, or ordering custom OEM fasteners for localized brand manufacturing, connect directly with our engineering division today.
Immediate manufacturing proposals, technical material mill test reports, and sample arrangements available upon request.
Live Technical Consultation
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