M10 Hollow
GR5 Titanium Bolts M10*1*33mm Factory Price Large Flat Head Hex Socket Hollow Bolts
- Grade: Ti-6Al-4V (Grade 5)
- Thread: M10 × 1.0 Fine Pitch
- Yield Strength: ≥ 828 MPa
Export Matrix
Featured GR5 Titanium Fasteners & Machined Hardware
Direct supply line from Baoji's Titanium Valley to Lat Krabang, Samut Prakan, and the Chonburi Eastern Seaboard corridor. Standard metric threads and custom tight-tolerance CNC configurations.
M8 Hex Head
GR5 Titanium Bolts M8*20mm CNC Machined Hexagon Head Full Thread Bolts
- Grade: Ti-6Al-4V Alloy
- Processing: CNC Precision Turning
- Thread: M8 × 1.25 Standard
Anodized M8
GR5 Titanium Bolts M8*40mm Colored Cylinder Head Hex Socket Bolts
- Finish: Spectra Dual-Anodized
- Head: Cylindrical Allen Cap
- Dimensions: M8 × 40mm
Tapered Conical
GR5 Titanium Bolts M6*31mm High Strength Tapered Head Hex Socket Bolts
- Tensile: 895–1050 MPa
- Head Profile: Lightweight Tapered
- Application: Chassis / Fairing
DIN 912 M5
DIN912 M5 Titanium Socket Head Cap Screw Titanium Alloy Bolt
- Standard: DIN 912 / ISO 4762
- Drive: Hexagonal Socket
- Tolerance: Class 6g Threads
Button Head
GR5 Titanium Bolts M6*60mm Factory Price Button Head Hex Socket Bolts
- Length: 60mm Semi-Round
- Forming: Warm Forged + CNC
- Corrosion Class: C5-M Marine Rated
Countersunk
GR5 Titanium Bolts M8*20mm Factory Price Countersunk Head Cross Bolts
- Profile: 90° Countersunk Flush
- Drive: Precision Phillips
- Surface: Mirror Micro-Polished
PVD Gold Flange
PSSTI GR5 Titanium Gold Flange Head Bolts Round Head Bolts M7*27
- Coating: PVD Titanium Nitride
- Configuration: Integrated Flange
- Hardness: Vickers HV 2200+
4.43
Density (g/cm³) / 45% Steel Weight
895+
Tensile Strength (MPa)
±0.01
CNC Tolerance (mm)
100%
Traceable Mill Test Reports
1. Engineering Specification: Titanium Dome (Acorn) Nuts Mechanics
In high-vibration, humid, and coastal environments such as Greater Bangkok, structural fasteners require both superior mechanical tensile capabilities and absolute defense against atmospheric degradation. Titanium dome nuts—commonly engineered according to DIN 1587, ISO 8675, or tailored motorsport specifications—serve a dual mechanical purpose. They provide clamping force equivalent to Class 10.9 structural alloy steel while providing a blind, sealed internal cavity that encapsulates exposed stud threads. This cap design prevents thread-root crevice corrosion, liquid ingress, road debris impingement, and accidental mechanical snagging on exposed assemblies.
Manufactured predominantly from Grade 5 Titanium (Ti-6Al-4V, UNS R56400), these cap nuts balance alpha-phase ductility with beta-phase shear strength. Unlike standard carbon steel fasteners that rely on fragile galvanized or chrome platings, titanium forms an instantaneous, self-healing stoichiometric oxide film (TiO₂) upon atmospheric contact. In Bangkok’s unique micro-climates—characterized by ambient temperatures often exceeding 38°C and relative humidity sustaining above 85%—this continuous passive film ensures near-zero corrosion rates in road grime, exhaust emissions, and brackish canal mist.
Sealed Blind Cavity (DIN 1587)
The interior hemispherical or cylindrical dome features precisely controlled tap depth tolerances (ISO 6H / 4H). This ensures stud ends are sealed against salt air, water intrusion, and abrasive road particulates without bottoming out prematurely.
Yield-to-Weight Optimization
With an elastic modulus of ~114 GPa and a yield point starting at 828 MPa, GR5 titanium dome nuts yield remarkable vibration damping. They resist self-loosening under continuous cyclic harmonic oscillation better than rigid 316 stainless.
Galling & Seizure Resistance
Through proprietary thread micro-burnishing and optional Physical Vapor Deposition (PVD) titanium nitride or carbide layers, our dome nuts exhibit reduced friction coefficients, preventing micro-welding when fastened over high-tensile studs.
| Alloy Specification | Yield Strength (MPa) | Tensile Strength (MPa) | Density (g/cm³) | Corrosion Resistance (Tropical/Chloride) | Target Bangkok Application |
|---|---|---|---|---|---|
| GR5 Titanium (Ti-6Al-4V) | 828 – 910 | 895 – 1050 | 4.43 | Impervious (Immune to Pitting) | Motorsport, EV Superstructures, Marine Stems |
| GR2 Pure Titanium (CP-1) | 275 – 350 | 345 – 450 | 4.51 | Impervious (Excellent Acid Resistance) | Chemical Processing & Industrial Anodizing |
| AISI 316L Stainless Steel | 220 – 300 | 520 – 680 | 8.00 | Moderate (Prone to Crevice Attack >35°C) | Architectural Trim, General Commercial |
| High-Tensile Steel 10.9 | 940 | 1040 | 7.85 | Poor (Immediate Oxidation Without Zinc) | Factory OEM Chassis, Heavy Internal Machining |
2. Localized Industrial Applications in the Bangkok Metropolitan Region
The Bangkok metropolitan area, spanning Nakhon Pathom, Nonthaburi, Pathum Thani, Samut Prakan, and extending into the Eastern Economic Corridor (Chachoengsao, Chonburi, Rayong), represents Southeast Asia's most dynamic manufacturing and custom-engineering hub. Navzo’s titanium dome nuts and fasteners address five high-impact industrial sectors across this corridor:
Bangkok High-Performance Motorsport & Big-Bike Customization
In specialized automotive workshops clustered around Bang Na-Trat, Srinakarin, and Pathum Thani drag-racing strips, titanium dome nuts are widely utilized as cylinder-head cap nuts, exhaust manifold closures, triple-clamp fasteners, and suspension linkage retaining caps. They withstand 600°C cylinder exhaust pulses without seizing, reducing unsprung rotational and chassis mass while offering burnt-blue and PVD gold cosmetic appeal for performance builds.
Chao Phraya River Fleet & Gulf of Thailand Maritime Yards
Operating between Khlong Toei port, Samut Prakan boatyards, and Pattaya marinas, high-speed passenger catamarans, luxury yachts, and naval patrol craft experience extreme galvanic degradation when utilizing standard fasteners. Grade 5 titanium dome nuts insulate deck hardware, navigational stanchions, and submerged pump mounts from galvanic electrolytic currents while resisting turbulent seawater scouring.
EEC Electric Vehicle (EV) Powertrain & Battery Modular Packaging
As Thailand accelerates its position as the EV hub of ASEAN, battery manufacturing clusters in Chonburi and Rayong demand non-magnetic, corrosion-proof, lightweight fasteners. Titanium dome nuts are utilized in high-voltage busbar connections and external battery casing studs, ensuring spark-free non-magnetic performance and total shielding against road water immersion.
Sanitary Food, Beverage & Brewery Processing Facilities
Industrial complexes in Lat Krabang and Samut Sakhon housing beverage plants and seafood processing equipment require hygienic fasteners that resist aggressive caustic washdowns (chlorides, nitric acid clean-in-place cycles). The closed dome design eliminates exposed crevices where bacterial colonies might form, providing bio-inert and non-toxic reliability.
Bangkok Climate Impact Note: The combination of persistent tropical humidity, urban ozone concentrations, and canal salt mists creates rapid electrolytic pitting on zinc-plated fasteners. Navzo Grade 5 titanium dome nuts exhibit zero localized pit initiation under ASTM B117 salt fog testing exceeding 2,000 continuous hours.
3. Strategic Industrial Trends Reshaping the Thai Fastener Market
Procurement paradigms among Thai tier-1 and aftermarket engineering teams are shifting away from intermediate domestic traders toward factory-direct certified sourcing. Three macro-trends currently drive titanium adoption across Thailand:
The "Thailand 4.0" Lightweighting Directive
Under the national industrial transformation framework, Thai automotive OEMs are mandated to reduce vehicle curb weight to optimize fuel economy and EV range. Titanium dome nuts provide a 45% weight saving over carbon steel, enabling localized racing teams and EV powertrain developers to meet targeted energy density metrics without sacrificing joint yield strength.
Direct-from-Baoji Supply Chain Integration
Bangkok machine shops and maintenance workshops are bypassing high markups from regional intermediaries. Navzo ships direct from the Shaanxi Titanium Valley via expedited air cargo to Suvarnabhumi Airport (BKK) in 3 to 5 business days, backed by EN 10204 3.1 chemical inspection certificates and batch traceability.
Advanced Surface Treatment Differentiation
The vibrant Thai modification culture demands both technical precision and visual elegance. Standard hardware is increasingly replaced with micro-arc anodized, PVD diamond-like carbon (DLC), or heat-gradient burnt-blue titanium acorn nuts that retain surface hardness and color consistency despite intense tropical UV exposure.
Procurement Clarity
Bangkok Importers & Engineers: Technical FAQ
Authoritative guidance addressing customs tariff codes, metallurgical inspection, torque calculations, and thread specifications for procurement teams in Thailand.
What are the import duties and HS codes for importing titanium nuts into Thailand?
Titanium dome and cap nuts are classified under HS Code 8108.90.90 (Other articles of titanium) or HS Code 7318.16 depending on customs declarations. Under the ASEAN-China Free Trade Agreement (ACFTA / Form E), shipments accompanied by an authorized Certificate of Origin can qualify for 0% to 5% preferential import duty rates, subject only to Thailand’s standard 7% Value Added Tax (VAT). Navzo provides complete Form E documentation and export invoices for streamlined clearance through Thai Customs at Suvarnabhumi Airport or Laem Chabang Port.
How do you prevent thread galling (cold welding) during high-torque assembly?
Titanium's natural oxide layer can cause galling under dry friction at high rotational loads. For installations in Bangkok's warm, humid climate, we recommend applying a nickel-based or molybdenum disulfide (MoS₂) anti-seize paste to the threads prior to torquing. When fastening into aluminum engine blocks or stainless studs, a PTFE-based paste prevents both galling and galvanic current potential between dissimilar metals.
Are Navzo titanium dome nuts compatible with Japanese JIS metric standards?
Yes. The Thai automotive and motorcycle market is heavily centered on Japanese OEM platforms (Honda, Yamaha, Kawasaki, Toyota). While European DIN 1587 is standard, we CNC-machine fine-pitch configurations common in JIS engineering, including M10×1.25, M12×1.25, and M8×1.0. Our internal dome clearances accommodate stud protrusions with precision depth tolerances according to Japanese industrial requirements.
What torque values should be applied to Grade 5 titanium dome nuts compared to steel?
Ti-6Al-4V Grade 5 fasteners share mechanical yield strengths comparable to Class 10.9 steel (approx. 830–900 MPa). However, because titanium’s elastic modulus (~114 GPa) is approximately half that of steel (~210 GPa), elongation under load differs. When using high-quality anti-seize lubrication, engineers should apply 80% to 85% of the standard dry torque recommended for Grade 8.8 / 10.9 carbon steel to achieve proper bolt pre-load without overstressing female thread roots.
How does Navzo ensure material authenticity and verify against counterfeit titanium?
Every production batch processed in our Baoji facility undergoes rigorous Positive Material Identification (PMI) using X-ray fluorescence (XRF) spectroscopy and optical emission spectrometry. We verify the precise alloy balance (5.5–6.75% Aluminum, 3.5–4.5% Vanadium, remainder pure Titanium). Clients receive certified Mill Test Reports (MTR) according to EN 10204 3.1 detailing chemical composition and physical tensile/yield performance with every shipment to Bangkok.
What is the delivery turnaround time from Baoji to Bangkok factories?
For standard catalog items held in stock (such as DIN 912 socket bolts, M6–M12 flange nuts, and standard dome nuts), dispatch occurs within 48 hours. Air freight via DHL, FedEx, or SF Express to Bangkok (BKK) delivers within 3 to 5 business days. Custom CNC-turned components or specialized PVD anodized batches typically require a 15 to 20-day production run followed by expedited air shipping.
Enterprise Strength
Why Bangkok Industry Partners Rely on Navzo Precision
Operating from Baoji, Shaanxi—China’s Titanium Valley—Navzo provides industrial buyers with direct factory economics, traceable metallurgical pedigrees, and multi-axis CNC capability.
Baoji Raw Material Proximity
Our manufacturing center sits directly within China’s primary titanium sponge and smelting zone. Sourcing directly from regional mills eliminates intermediate stockist markups, ensures traceable ingot origins, and provides continuous Grade 5 and Grade 2 bar supply even during global titanium allocation bottlenecks.
Advanced 5-Axis CNC & Cold Heading
Equipped with multi-spindle CNC turning centers and precision thread-rolling machines, Navzo produces rolled external threads and cold-tapped female threads rather than cut profiles. Rolled threads maintain continuous internal grain flow lines, enhancing fatigue cycle life by over 30% under heavy mechanical vibration.
In-House Surface Modification Lab
From high-voltage multi-color anodizing (purple, gold, emerald green, vibrant blue) to vacuum-chamber PVD coatings and thermal gradient treatments, our surface processes create stable, wear-resistant, and aesthetically clean finishes tailored to motorsport fabricators and marine shipbuilders.
Dedicated OEM/ODM Engineering Desk
Our bilingual technical engineering team reviews 2D (PDF, DWG) and 3D (STEP, IGES) CAD files with an average response time of less than one hour. We perform Design for Manufacturability (DFM) reviews to identify potential stress concentrations, chamfer optimization, and cost savings prior to batch production.
Accelerate Your Bangkok Sourcing with Certified Titanium Hardware
Access our comprehensive Grade 5 fastener specifications, metric thread pitch charts, and dynamic factory pricing for wholesale or custom OEM manufacturing.