GR5 Umbrella Flange Head Torx Bolt M6*25mm
- StandardTaper Flange Plum
- MaterialTi-6Al-4V Grade 5
- Tensile> 950 MPa
- ApplicationFairings & Triple Clamp
Engineered to DIN, ISO, and bespoke motorsport specifications. Our physical vapor heat-oxidized "burnt blue" and multi-color anodized fasteners provide 44% weight reduction and impervious corrosion barrier credentials for demanding Irish road riding conditions.
Operating a motorcycle along the Wild Atlantic Way or racing across the Munster circuit requires hardware that actively mitigates galvanic corrosion, resists ocean salinity, and maintains absolute clamping integrity over unpredictable Irish road conditions.
From custom cafe racers and bobbers built in workshops along the River Lee to precision sportbike restorations, burnt blue titanium screws provide a distinctive physical aesthetic combined with extreme structural lightness. The dynamic color spectrum (blue, purple, and gold) elevates exposed engine casings, primary drive covers, and custom handlebars.
Riders exploring Kinsale, Clonakilty, and the Ring of Kerry face continuous oceanic humidity and sodium chloride mist. While zinc-plated carbon steel and standard A2 stainless bolts suffer stress corrosion cracking or unsightly rust bleeding, Navzo GR5 titanium forms an instantaneous, passive titanium oxide (TiO₂) film that stops galvanic salt attack completely.
Irish club racers competing in road races and closed track events demand unsprung mass reduction. Utilizing our cold-forged, CNC-drilled flange screws on radial brake calipers, front axle pinch clamps, and sprockets slashes rotational inertia by over 40%, yielding instant handling improvements and quicker lap transitions through tight chicanes.
A rigorous metallurgical evaluation illustrating why Ti-6Al-4V (Grade 5) is superior to Grade 10.9 steel and A2/A4 stainless fasteners in high-performance motorcycle engineering.
| Material Specification | Density (g/cm³) | Tensile Strength (MPa) | Yield Strength (MPa) | Chloride Pit Resistance | Thermal Shock Stability |
|---|---|---|---|---|---|
| Navzo GR5 Titanium (Ti-6Al-4V) | 4.43 | 950 – 1050 | 880 | Immune (TiO₂ self-healing) | Exceptional (-196°C to +500°C) |
| High-Tensile Carbon Steel 10.9 | 7.85 | 1000 – 1040 | 900 | Poor (Requires zinc/phosphate) | Moderate (Prone to oxidation) |
| Austenitic Stainless Steel A2-70 | 7.90 | 700 | 450 | Moderate (Crevice pitting risk) | Fair (High thermal expansion) |
| Marine Grade Stainless A4-80 | 8.00 | 800 | 600 | Good (High nickel/moly cost) | Fair (Weight burden) |
Unlike fragile spray lacquers or low-end dye anodizing, our OEM burnt blue surface is induced via controlled thermal oxidation and precision physical vapor immersion. The color arises from natural light interference within a micrometer-thin crystallized titanium oxide lattice, meaning it will never flake, blister, or dissolve in contact with petroleum or brake fluid.
Cutting threads fractures the structural grain line of titanium alloy, which can cause micro-fissures and thread galling. Every Navzo motorcycle screw features 100% cold-rolled threads. This burnishes the root fillets, increases fatigue limits by 30%, and ensures smooth torque engagement under DIN 912 and ISO standards.
Replacing an OEM motorcycle's combined steel brake, subframe, and body hardware (approx. 4.2 kg) with our GR5 burnt blue hardware sheds nearly 1.85 kg. This reduction directly lowers the center of gravity and improves rotational flickability on technical roads across the South of Ireland.
Irish motorcycle distributors, performance tuning shops, and motorsport teams are shifting their component sourcing strategies to match strict EU compliance and custom lifestyle demands.
Workshop mechanics across Cork are increasingly moving away from aftermarket A2 stainless kits. Although stainless solves basic rust issues, it has low yield strength (450 MPa) and is vulnerable to thread stripping and shearing when torqued on engine mountings or brake setups. Navzo Grade 5 Titanium delivers twice the tensile strength while cutting weight in half, meeting the requirements of both classic restorers and superbike tuners.
Generic hardware sets from retail distributors often suffer from loose drive tolerances, resulting in rounded sockets. Irish procurement specialists increasingly favor factory-direct OEM production. By collaborating directly with our Baoji facility, Cork suppliers obtain custom thread lengths, specific head undercuts, custom head drilling for safety wiring, and proprietary burnt color tones tailored to their brand identity.
Navzo Precision Titanium Products Co., Ltd. was established on January 10, 2011, in the High-tech Industrial Development Zone of Baoji, Shaanxi — the global epicenter of titanium raw material supply and metallurgical refinement.
Being based directly in Baoji gives our engineering team direct access to virgin titanium sponge, certified Ti-6Al-4V bar stock, and dedicated vacuum smelting facilities. This eliminates intermediate trading markups and guarantees complete chemical batch traceability on every fastener shipped to Cork.
Key technical, commercial, and installation guidelines for motorcycle builders, performance workshops, and parts importers sourcing titanium screws from our facility.
Grade 2 commercially pure (CP) titanium has an ultimate tensile strength of only ~345 to 450 MPa, making it suitable solely for non-load-bearing applications like license plate brackets. For critical motorcycle components—such as brake caliper mounts, triple trees, footpegs, and engine hangers—Grade 5 (Ti-6Al-4V) is essential. Our GR5 screws deliver a minimum tensile strength of 895–1000 MPa, easily matching and exceeding Class 8.8 and Class 10.9 steel fasteners while remaining over 40% lighter.
Our burnt blue finish is achieved through precision thermal oxidation and controlled PVD vacuum deposition, creating a micro-layer of titanium oxide directly integrated into the metal's surface. Unlike superficial spray paints or lacquer dips, it cannot chip, flake, peel, or crack. It is chemically inert, providing complete resistance to petroleum, DOT 4 and 5.1 brake fluids, chain degreasers, and the corrosive salt air typical along the Cork coastline.
Yes. Titanium has a natural tendency to gall when threaded dry into like materials or aluminum crankcases. We recommend applying a quality copper-based or nickel-based anti-seize compound, or high-purity synthetic molybdenum assembly grease, onto the screw threads. This ensures accurate torque tension conversion, prevents galvanic bonding, and allows smooth removal during maintenance intervals.
Because titanium has a modulus of elasticity approximately half that of carbon steel (110 GPa vs 210 GPa), torque settings must be observed closely. When using anti-seize paste, we advise applying 80% to 85% of the OEM motorcycle manufacturer's specified dry steel torque. For example, a standard M6 steel fairing bolt specified at 10 Nm should typically be torqued to 8–8.5 Nm in lubricated GR5 titanium to achieve optimal clamping preload without over-stretching.
For standard catalogue motorcycle fasteners (e.g., DIN 912 M6/M8 socket caps, umbrella flange Torx screws), our minimum order quantity starts at just 100 to 200 pieces per specification. For custom CNC designs produced to your 2D/3D CAD models (STEP/DWG), prototype batches can be manufactured within 10–12 business days. Bulk orders are typically shipped via express air freight (DHL/FedEx/UPS), arriving in Cork within 4 to 7 business days.
We supply complete commercial export documentation, including detailed commercial invoices, packing lists with accurate TARIC/HS code classifications (typically 8108.90 for finished titanium articles), Certificates of Origin, and EN 10204 3.1 Mill Test Reports confirming the exact chemical composition (Ti, Al, V, Fe, C, N, H, O) and mechanical tensile testing for your clearance agent in Ireland.