Manufactured by Velnora Titanium Industry Co., Ltd. in Baoji—widely recognized as China's Titanium Valley—our bicycle fasteners provide competitive cyclists and frame builders with up to 45% weight savings over conventional steel while delivering higher fatigue endurance than 7075 aluminum.
Each component is turned from certified Grade 5 Ti-6Al-4V (TC4) bar stock featuring rolled threads that preserve metallurgical grain flow. From disc rotor screws to hollow-drilled bottle cage hardware, our bicycle components ensure zero atmospheric rust, no galvanic corrosion against carbon fiber, and tight mechanical tolerances down to ±0.01 mm.
Precision components engineered for professional bike manufacturers, aftermarket racing brands, and distributor wholesale. Each product is turned from solid titanium bar stock with verifiable batch quality.
Bicycle bolt applications experience dynamic cyclical fatigue, exposure to sweat, road salt, and harsh cleaners. Compare the real physical properties to understand why Grade 5 titanium is the premier choice for cockpit, brake, and drivetrain fasteners.
| Performance Characteristic | Grade 5 Titanium (Ti-6Al-4V) | Grade 2 CP Titanium | 304 / A2-70 Stainless Steel | 7075-T6 Aluminum |
|---|---|---|---|---|
| Density (ρ g/cm³) | 4.43 | 4.51 | 7.93 | 2.81 |
| Min. Tensile Strength (Rm MPa) | ≥ 895 MPa | ≥ 345 MPa | ≥ 700 MPa | ≥ 570 MPa |
| Yield Strength (Rp0.2 MPa) | ≥ 828 MPa | ≥ 275 MPa | ≥ 450 MPa | ≥ 505 MPa |
| Weight Savings vs. Steel Fastener | ~44% lighter | ~43% lighter | Baseline (Heavy) | ~65% lighter |
| Galvanic Compatibility with Carbon Fiber | Excellent (Near zero potential delta) | Excellent | Good | Poor (High risk of galvanic oxidization) |
| Suitability for Disc Rotor & Calipers | Recommended (High shear & fatigue) | Not Recommended (Low strength) | Heavy / Moderate | Prohibited (Prone to brittle shear failure) |
| Surface Finishing Versatility | Anodizing (12V-95V), PVD Burnt Rainbow | Basic Anodizing | Passivation / Electro-polish | Chemical Anodizing (Dye based) |
When aluminum fasteners come into contact with carbon fiber in moist or salty environments, galvanic cells form, causing the aluminum to corrode into white powder and seize. Titanium sits at approximately +0.05 V vs SCE on the galvanic series, making it chemically neutral relative to graphite fibers. Frame builders can insert Grade 5 titanium bolts directly into bare carbon dropouts, fork legs, and bottle bosses with zero galvanic corrosion.
Titanium threads form a protective native titanium dioxide (TiO2) passivation film that can undergo microscopic galling under high contact stress if tightened dry. Velnora precision-rolls all bolt threads to maintain unbroken grain lines and ensure low surface roughness. For installation, always apply an anti-seize compound with copper or molybdenum disulfide, and reduce nominal dry bolt torque by 10% to 15% to achieve exact clamping preload without over-stressing joint components.
Founded in 2013, Velnora Titanium Industry Co., Ltd. operates a high-precision metal manufacturing plant in Baoji's Jinhe Industrial Park. Every batch of bicycle fasteners undergoes rigorous optical screening and dimensional verification.
High-precision turning and milling centers producing bicycle bolt geometries, tapered heads, and hollow shanks to ±0.01 mm tolerance.
Thread rolling machines and optical comparators inspecting 100% of critical pitch diameters, lead errors, and hex/Torx sockets.
Ultrasonic cleaning, voltage-controlled color anodizing, laser marking, and secure export packing for air and express delivery worldwide.
Find comprehensive technical answers regarding alloy selection, torque specifications, custom logo etching, and batch ordering.
Grade 5 (Ti-6Al-4V) titanium delivers a tensile strength exceeding 895 MPa, which is more than double 6061-T6 aluminum and comparable to class 8.8 steel, while saving approximately 44% weight compared to steel. Unlike aluminum bolts, Gr5 titanium provides the shear and fatigue resistance needed for safety-critical assemblies such as brake calipers, disc rotors, and stem clamps, while being completely rustproof.
No. Titanium has an electrochemical galvanic potential very close to carbon fiber composites. Unlike aluminum fasteners, which experience accelerated galvanic oxidation when in contact with raw carbon in moist environments, titanium fasteners can be directly integrated into carbon dropouts, bottle boss mounts, and stem faces without galvanic degradation.
Thread galling can be prevented by applying a copper or molybdenum-based anti-seize paste to threads and bearing surfaces before assembly. Velnora precision-rolls fastener threads, which produces smooth surface root radii and work-hardened flank surfaces that resist binding far better than cut threads. Always calibrate torque wrenches and reduce standard dry torque specifications by 10-15% when lubricating threads.
We provide both electrical anodizing and high-hardness PVD vacuum coating. Color options include raw polished silver, burnt rainbow (oil slick), gold, deep royal blue, violet purple, rose, emerald green, and DLC diamond-like black. Anodized oxide films do not chip, flake, or add measurable dimensions to thread pitches.
Yes. We operate multi-axis CNC lathes and machining centers in Baoji. We accept STEP, IGES, and DWG 2D/3D technical drawings with tolerances down to ±0.01 mm. Custom laser engraving for brand logos, customized anodized finishes (oil slick, burnt purple, gold, cyan blue), and specialized thread pitches are available with typical production lead times of 12-18 days.
Standard bicycle fasteners (such as M5x10 rotor screws, M6x20 caliper bolts, and 1-1/8" headset caps) carry MOQs of 100 to 300 pieces. In-stock sizes ship within 3 business days. Custom OEM orders typically require 10-15 working days following sample approval. Process photos and video inspections are supplied before final packing.
Whether you require standard Grade 5 titanium rotor screws or custom CNC stem caps etched with your brand logo, our technical engineering team in Baoji provides detailed quotes, material certifications, and drawing assessments within 4 hours.
[email protected]