Burnt Blue Finish
Titanium Bolt M8*20mm 25mm Motorcycle Rear Brake Rotor Screw Burnt Blue
- Material:Ti-6Al-4V Gr5
- Thread Pitch:1.25mm Metric
- Finish:Thermal PVD Burnt Blue
- Tensile Strength:950+ MPa
Aerospace-Grade Precision
High-Performance Titanium Motorcycle Fasteners
Direct manufacturer supply from Baoji, China to Makassar's leading racing workshops, parts importers, and motorcycle modification hubs across South Sulawesi.
DIN 912 Standard
Wholesale GR5 DIN912 Titanium Hex Socket Bolts Custom Size Screws
- Standard:DIN 912 / ISO 4762
- Size Range:M4 – M16 Custom
- Drive Style:Hexagon Socket
- Application:Crankcase & Triple Tree
DIN 7991 Flat Head
Available Immediately DIN7991 Titanium Countersunk Hexagon Bolt M3-M5
- Head Geometry:90° Countersunk
- Sizes in Stock:M3, M4, M5, M6
- Surface:CNC Micro-Polished
- Suitability:Fairings, Bodywork & Pegs
Custom Anodized
Anodized High Strength GR5 Titanium Alloy M6*15 Umbrella Head Bolts
- Head Profile:Broad Umbrella Dome
- Dimension:M6 × 15mm / Custom
- Finish Options:Gold, Violet, Burnt, Cyan
- Function:Clamping Stress Spread
DIN 933 / Class 8.8+
Wholesale Titanium Flange Hex Nut M4 M5 M6 M8 M10 CNC Plain Finish
- Flange Style:Integrated Load Collar
- Available Specs:M4, M5, M6, M8, M10
- Resistance:Chloride & Acid Proof
- Vibration Lock:Engine & Swingarm Mounts
Precision Micro-Turned
Titanium Bolts with Flat Head Screws M1.6 Thread Industrial Grade
- Micro Diameter:M1.6 up to M3 Micro
- Process:5-Axis Swiss Lathe Turned
- Tolerance:±0.01mm Strict Precision
- Focus:Speedometer & Throttle Sensors
Heat Shield Tough
Silver M8 M10 GR5 Ti-6Al-4V Exhaust Intake Manifold Stud Kits
- Thermal Range:Stable up to 450°C
- Thread Pitch:M8×1.25 / M10×1.25 Double
- Components:Stud + Flange Nut + Washer
- Corrosion Defect:Zero Rust Seizing on Heads
Safety Rotor Critical
Titanium Brake Disc Bolt M6 X 20mm for Caliper & Disc Assemblies
- Drive Style:Torx T30 Low-Profile
- Dimensions:M6 × 20mm Flanged
- Thread Form:Rolled Threads (Fatigue Resistant)
- Compatibility:Yamaha NMAX, Aerox, Honda Beat
Market Intelligence & Localization
Why Makassar’s Motorcycle Ecosystem Demands Grade 5 Titanium
A technical assessment of maritime saline vulnerability, high-torque modification culture, and logistics connectivity in South Sulawesi, Indonesia.
Combating Coastal Maritime Salinity
Makassar, stretching along the busy Makassar Strait, suffers from constant onshore sea spray and high relative humidity (consistently averaging 78%–88%). Standard zinc-plated carbon steel screws (Grade 4.8 or 8.8) and budget stainless steel (AISI 304) experience catastrophic pitting corrosion and galvanic rust seizure within 4 to 8 months of coastal daily commuting along Losari Beach and Hertasning. Yevzo Grade 5 (Ti-6Al-4V) titanium forms a continuous, self-healing TiO2 passive oxide shield that remains chemically impervious to dense chloride attack, preventing frozen disc rotor fasteners and snapped engine bolts during maintenance.
The "Bore-Up" & Maxi-Scooter Culture
Makassar is known across Indonesia as the primary modification capital of Eastern Indonesia. The city hosts thousands of tuned Yamaha NMAX, Aerox 155, XMAX 300, and Honda Vario/PCX scooters that undergo severe 62mm–65mm cylinder bore-up conversions. These tuned single-cylinder engines produce aggressive, high-frequency harmonic vibrations that easily shear low-grade aftermarket screws. Our precision CNC-machined titanium fasteners boast fatigue strength exceeding 510 MPa and tensile load ratings past 950 MPa, maintaining reliable clamp preload across engine brackets, swingarm pivots, and caliper mounts.
Reducing Unsprung Rotating Mass
In competitive road racing circles, drag championships (such as 201m sprints at local circuits), and touring clubs crossing the mountainous bends of Malino, wheel rotational inertia directly affects agility and handling. Titanium possesses a density of approximately 4.43 g/cm³, representing a 44% mass reduction compared to steel. Replacing OEM steel bolts across front/rear brake rotors, wheel hub flanges, caliper mounting points, and rear sprocket carriers significantly reduces unsprung mass, delivering sharper steering response and superior suspension dampening over uneven asphalt.
2013
Established in Baoji Valley
100+
CNC Machining Centers
950+ MPa
Tensile Yield Strength
-44%
Weight vs Standard Steel
Localized Implementation
Makassar Motorcycle Modification Segments & Trends
How wholesale distributors, boutique custom shops (Bengkel Modifikasi), and high-volume spare parts retail chains in South Sulawesi deploy our fasteners.
1. Maxi-Scooter Coastal Urban Commuting
The streets linking Panakkukang, Pettarani, and Tamalanrea see tens of thousands of Maxi-scooters daily. Premium owners heavily upgrade to anodized M6 umbrella bolts and DIN 6923 flange nuts across fairing panels, exhaust heat guards, and radiator brackets. Our PVD burnt-blue and golden electrochemical treatments prevent the unsightly milky oxidation and salt-crusting typical of tropical humid climates.
2. 201m Drag & Underbone Road Racing
South Sulawesi hosts competitive drag championships and regional Underbone (Bebek 150cc) racing leagues. Teams mandate Class 10.9-equivalent Grade 5 titanium bolts on cylinder head studs, crankcases, clutch covers, and rear sprockets. The extreme strength-to-weight ratio lowers overall chassis weight while resisting excessive shear forces generated by high-RPM launches on hot tarmac.
3. Wholesale Spare Parts Import Hub for Eastern Indonesia
As the economic gateway to Sulawesi, Maluku, and Papua, Makassar-based importers in trading districts like Jalan Veteran and Jalan Sulawesi act as central distributors. By importing bulk custom-packaged bubble-card sets directly from our Baoji factory, local wholesalers secure higher operating margins than reselling domestic third-party distributor goods.
| Fastener Parameter | Yevzo Ti-6Al-4V (Grade 5) | Standard Stainless (SUS 304) | OEM High-Tensile Steel (8.8) | Aluminium 7075-T6 |
|---|---|---|---|---|
| Density (g/cm³) | 4.43 g/cm³ (Lightweight) | 7.93 g/cm³ (Heavy) | 7.85 g/cm³ (Heavy) | 2.81 g/cm³ (Ultralight) |
| Tensile Strength (MPa) | 895 – 1050 MPa | 520 – 700 MPa | 800 – 880 MPa | 520 – 570 MPa |
| Yield Strength (MPa) | 828 – 950 MPa | 205 – 240 MPa | 640 MPa | 460 – 500 MPa |
| Makassar Saline Resistance | Immune (Forms Stable TiO2) | Prone to Crevice Corrosion | Severe Rusting & Seizure | Severe Galvanic Oxidation |
| Safety-Critical Suitability | Rotors, Calipers, Engine Mounts | Cosmetic Fairings Only | Load Bearing (Requires Anti-Rust) | Non-Critical Trim Only |
| Thread Production Mode | Precision CNC Rolled (Anti-Fatigue) | Die Cut (Weak Grain Alignment) | Cold Rolled | Cut Machined |
*Verified test parameters derived from ASTM B348 Grade 5 specifications and laboratory salt spray testing protocols (ASTM B117 exceeding 1000 hours with 0% surface rust).
Direct Manufacturing Authority
Why Makassar B2B Buyers Partner Direct With Yevzo
Located at the core of Baoji Titanium Valley, Shaanxi, China, Yevzo Titanium Metal Co., Ltd. eliminates intermediate trading surcharges while providing verified material traceability.
100% Baoji Sponge Origin
We source military-grade 0A titanium sponge smelted in certified vacuum arc furnaces. We provide rigorous 3.1 Mill Test Certificates (MTC) with full chemical analysis (Ti balance, Al 5.5-6.75%, V 3.5-4.5%) verifying true Grade 5 properties.
Rolled Threads (Not Cut)
Unlike inexpensive alternatives cut on single-point turning machines which introduce micro-notches, our thread roots are cold-rolled. This process preserves the metal’s continuous grain structure, improving fatigue cycle limits by over 30%.
OEM & Custom Branding
We provide complete laser-engraved workshop branding, custom head knurling patterns (umbrella, cone, drilled safety-wire flange, Torx, or hex), and pre-packaged blister card kits ready for retail display in Makassar motorcycle shops.
Streamlined Logistics to Port of Makassar
We offer flexible shipping terms including FOB, CIF Port of Makassar (Soekarno-Hatta Harbour), and door-to-door Air DDP directly clearing customs into South Sulawesi, bypassing typical Jakarta or Surabaya transshipment bottlenecks.
Procurement Questions
Makassar Buyers Frequently Asked Questions (FAQ)
Practical answers addressing logistics, anti-seize torque practices, custom colors, and customs clearance for Indonesian motorcycle shops and importers.
Why should Makassar motorcycle shops switch from stainless steel (AISI 304) to Grade 5 titanium?
While AISI 304 stainless steel resists common atmospheric moisture, it has a low yield strength (approx. 205-240 MPa) and is vulnerable to chloride pitting corrosion along Makassar's coastal corridors. Under heavy braking or engine vibration, stainless steel bolts often experience thread deformation, galling, or head shearing. Grade 5 titanium provides over four times the yield strength (828+ MPa) at almost half the weight, and its stable oxide layer prevents seizure inside aluminum crankcases even in saline coastal air.
How do you ship wholesale orders directly from China to Makassar, South Sulawesi?
We support multiple shipping methods depending on order size. For sample orders and boutique shop batches (5 to 40 kg), we use express air freight (DHL, FedEx, or specialized Indonesia DDP air lines) directly clearing customs and arriving in Makassar within 5 to 8 business days. For container-load or palletized wholesale orders, we ship maritime freight via direct feeder lines to the Port of Makassar (Soekarno-Hatta Port) under FOB, CIF, or DDP terms.
How do we prevent thread galling when installing titanium bolts into aluminum engine blocks?
Titanium has a tendency to cold-weld (gall) if driven dry at high speeds into softer metals like aluminum crankcases or cylinder heads. We advise Makassar mechanics to always apply a high-quality anti-seize paste (such as copper-based, nickel-based, or synthetic moly paste) or medium-strength threadlocker to the threads before assembly. Torque values should also be adjusted: titanium bolts require roughly 15% to 20% less torque than equivalent steel fasteners to achieve the same clamping force due to lower friction coefficients when lubricated.
Will anodized colors (Burnt Blue, Gold, Purple) fade under Indonesia’s intense UV and rain?
Our titanium colors are produced via precise electrochemical anodization and PVD vacuum coating. Unlike dyed anodized aluminum which bleaches under equatorial sun exposure, titanium anodizing creates a controlled micro-layer of titanium oxide that generates color through light refraction. It contains no organic dyes, making it immune to UV fading, high engine temperatures, and fuel or degreaser spills.
What is the Minimum Order Quantity (MOQ) for custom-designed motorcycle bolts?
For standard catalog items (such as DIN 912 socket bolts, M8 brake rotor bolts, and M6 umbrella screws), our MOQ starts at just 20 to 50 pieces per size, allowing local workshops to sample different styles. For custom CNC-turned parts based on CAD drawings or unique head engraving, MOQs generally start around 100 to 200 pieces, supported by fast engineering sample turnarounds.
Which payment methods and currencies are supported for Indonesian trade transactions?
We accept standard international B2B payment methods including Telegraphic Transfer (T/T), Letter of Credit (L/C), PayPal for rapid sampling, and Credit Cards via Alibaba Trade Assurance. We process payments in USD, EUR, and direct RMB (CNY), simplifying currency management for Indonesian import accounts.
Upgrade Your Motorcycle Hardware Inventory with Factory-Direct Titanium
Connect directly with Yevzo's technical engineering team in Baoji. Whether you operate a racing team in Makassar, a custom shop in Panakkukang, or a regional distribution warehouse in South Sulawesi, we provide custom CAD design, fast prototype samples, and certified wholesale supply.
- Standard catalogue parts dispatched within 48 hours
- Complete Mill Test Reports (MTR) per ASTM B348 Grade 5
- Flexible Door-to-Door DDP air and sea shipping to Indonesia
Request a Wholesale Quote
Speak to our application engineers now for sample requests, custom CNC drawings, or bulk price tier sheets.
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