Aviation-Grade TC4 Titanium Alloy Flange Bolts with Integrated Washers; High-Strength, Rust-Resistant, Compression-Resistant, Lightweight Custom Bolts for Motorcycles, Bicycles, and Machinery.
I. Product Overview
Product Name: Titanium Alloy Flange Bolts (Integral Flange-Face Screws, Bolts with Built-in Washers)
Material: Aerospace-grade TC4/GR5 titanium alloy (Ti-6Al-4V)
Design Features: The head features a built-in widened flange bearing surface; the integral design eliminates the need for additional flat washers, providing a large load-bearing area and preventing crushing and slippage
Common Sizes: M4/M5/M6/M8/M10. Full range of lengths in stock; fine-thread and custom non-standard sizes available.
Manufacturing Process: Warm forging from solid titanium bar, CNC precision machining of flange surface, 6g precision thread rolling, vacuum heat treatment, hard anodizing.
Surface Finishes: Natural, Polished, Black, Blue, Gold, Iridescent
Applications: Motorcycles, electric motorcycles, bicycles, precision machinery, outdoor equipment, and heavy-duty fastening modifications for tooling and fixtures
This TC4 titanium alloy flange bolt is the most widely used general-purpose high-end fastener in the modification industry. The integrated flange surface serves as a built-in washer, eliminating the need for additional flat washers. It provides a larger contact area, more stable locking, and prevents damage to workpieces. Compared to traditional stainless steel and iron screws, it offers four key advantages: lighter weight, greater strength, rust resistance, and vibration-proof, anti-loosening properties. Suitable for harsh conditions such as heavy-duty vehicle loads, high vibration, and humid outdoor environments, it is an essential universal screw for vehicle lightweighting, rust-proof upgrades, and aesthetic detailing.
II. Common Issues with Traditional Screws
❌ Requires additional washers: Separate washers are prone to shifting, falling out, and causing noise
❌ Low load capacity and prone to crushing: Standard pan-head screws concentrate pressure, which can damage aluminum parts, paint finishes, and thin-walled components
❌ Steel is prone to rust: In rainy weather, during car washes, or in salt spray environments, they oxidize rapidly, turning white, and can become rusted or seized
❌ Heavy weight: The cumulative weight of multiple screws affects the vehicle’s overall weight reduction and handling
❌ Prone to loosening due to vibration: They are prone to loosening or coming undone in environments with vehicle jolts or equipment vibrations


III. Key Product Advantages
✅ Integrated Flange Design: No Washers Required for Hassle-Free Installation
The head features a wide, thickened flange molded as a single piece, eliminating the need for additional flat washers or spring washers and simplifying installation. The flange surface lies flat and flush, ensuring even force distribution and preventing misalignment. This eliminates issues such as loose washers, rattling, and washers falling out, resulting in higher assembly efficiency and more stable fastening.
✅ Extra-Large Contact Area: Prevents Indentation and Component Damage
The flange diameter is significantly larger than that of standard pan-head screws, effectively distributing clamping pressure. This protects aluminum alloy, plastic, painted surfaces, and thin-walled components from indentation, cracking, paint chipping, and deformation, making it the top choice for precision modifications and cosmetic part installation.
✅ Aerospace-Grade TC4 Material: 40% Lighter
Titanium alloy has a density of only 60% that of steel and is over 40% lighter than stainless steel screws of the same specification. It effectively reduces unsprung weight in motorcycles and overall load on bicycles, making rides lighter and more responsive, with significant weight-saving results.
✅ Lifetime Rust-Free, Suitable for Harsh Environments
Titanium alloy naturally forms an inert, corrosion-resistant oxide layer, making it resistant to rain, car washes, salt spray, exhaust fumes, and extreme temperatures. Whether parked outdoors long-term, in humid coastal areas, or during off-road mud and water conditions, it will never rust, oxidize, or seize up—a one-time upgrade that requires zero maintenance for life.
✅ Vacuum Heat Treatment: High Strength, Vibration Resistance, and Fracture Resistance
Integrally forged and reinforced through vacuum heat treatment, the internal structure is dense, offering exceptional tensile, shear, and fatigue resistance. It remains deformation-free, fracture-free, and secure under prolonged high-frequency vibration, heavy-load locking, and intense use, with safety and stability far surpassing ordinary screws.
✅ 6G Precision Rolled Threads: Tight Engagement and Anti-Loosening
Features industrial-grade 6G precision rolled threads with full-profile threads, standard pitch, and precise tolerances, fully inspected with go/no-go gauges. Perfectly matches standard threaded holes with uniform engagement clearance, offering strong resistance to vibration-induced loosening. Resists loosening and noise even under bumpy or vibrating conditions.
✅ Precision Chamfering: Seamless Fit Without Scratches or Damage
The flange edges and shaft openings are fully rounded and deburred, ensuring a smooth surface with no sharp corners. Installation won’t scratch paint, cut hands, or damage components. The fit is flush and aesthetically pleasing, with meticulous attention to detail.
✅ Multi-Color Anodized Finish: Elevate Your Modification Aesthetics
High-end hard anodizing process creates a dense, wear-resistant coating that resists fading and scratches. Available in a variety of stylish colors, these bolts allow for a unified color scheme across all vehicle screws, enhancing the car’s overall refinement and premium aftermarket aesthetic.


IV. Product Specifications
Material TC4/GR5 aerospace titanium alloy (Ti-6Al-4V)
Product Name Titanium Alloy Integral Flange Bolt
Design Features Widened integral flange face, gasket-free, large bearing surface
Manufacturing Standards Warm forging integral forming, precision roll threading, vacuum heat treatment, anodizing
Thread Precision 6g precision tolerance, 100% inspection with go/no-go gauges
Weight Reduction: Over 40% lighter than stainless steel screws
Surface Finishes: Natural, Polished, Black, Blue, Gold, Iridescent
Product Features: Collapse-resistant, anti-loosening, rust-proof and durable, high strength and vibration resistance, lightweight and aesthetically pleasing
Standard Sizes: M4/M5/M6/M8/M10 available in full length range; custom sizes and fine-pitch threads available
V. Wide Range of Applications
✅ Heavy-duty fastening for motorcycle and electric motorcycle full-body guards, exhaust systems, calipers, engines, and brackets
✅ Lightweight, rust-proof modifications for mountain bike and road bike frames, components, and disc brake systems
✅ Long-lasting rust-proof fastening for outdoor equipment, photography gear, and waterproof devices
✅ Stable fastening and assembly for workholding fixtures, precision machinery, and equipment enclosures
✅ Specialized installation screws for preventing deformation on painted surfaces, aluminum parts, and thin-walled, fragile workpieces
VI. Quality Assurance
Directly sourced from the titanium manufacturer, these are genuine, brand-new titanium bar raw materials. Spectral analysis confirms their purity; they contain no recycled materials or impurities.
100% full inspection of flange flatness, threads, concentricity, and appearance—no burrs, no stripped threads, precise dimensions, and excellent interchangeability.
We provide 3.1 material certificates, mechanical testing reports, and salt spray test reports, and support bulk supply and international trade orders.
Manufactured to aerospace-grade standards, featuring high strength, fatigue resistance, and corrosion resistance, with a service life far exceeding that of ordinary steel screws.
Media Contact
Company Name: Baoji Chengjin Titanium Industry Co., LTD
Email: Send Email
Country: China
Website: https://www.cjbolt.com/
