Grade 5 Titanium Bolts (Ti-6Al-4V) | Manufacturer & Supplier China | TSM TECHNOLOGY CO

Grade 5 Titanium Bolts (Gr5 / Ti-6Al-4V)

Grade 5 Titanium Bolts (Gr5 / Ti-6Al-4V)


Brand: TSM Technology

Material: Titanium, Nickel, Copper, Aluminum

3 factories*8 production lines*70+ machines

Supply Ability: 300,000 PCS

Size :M2.5-M64 or Customized

Length: 1mm-1990 mm or customized

Standards: ASTM, DIN, JIS, BS, GB/T

MOQ:100PCS

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Grade 5 Titanium Bolts (Gr5 / Ti-6Al-4V) In Stock


Manufactured in Shaanxi, China — the heart of the global titanium supply chain. As a dedicated manufacturer and supplier of grade 5 titanium bolts, TSM TECHNOLOGY CO delivers fasteners engineered for extreme environments. Our titanium gr5 bolts achieve tensile strength ≥895 MPa while weighing approximately 45% less than steel equivalents. We maintain comprehensive stock across metric and imperial dimensions, ensuring short lead times for global customers. Whether you are sourcing for aerospace assemblies, marine hardware, or high-performance motorsports, our gr5 titanium bolt solutions combine technical precision with competitive price points.

With ISO 9001:2015 certified manufacturing and full material traceability per ASTM B348, we supply fasteners that meet the rigorous demands of engineers worldwide. Contact us today for a grade 5 titanium bolts price quotation — we respond within 4 business hours.


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Understanding Grade 5 Titanium (Ti-6Al-4V)

Grade 5 titanium alloy, Ti-6Al-4V, is the most widely used titanium alloy in all industrial fields. Its chemical composition includes 6% aluminum, 4% vanadium, up to 0.25% iron, 0.2% oxygen, and the remainder titanium. Its mechanical properties far exceed those of commercially pure titanium (CP). At TSM, we select raw material bars from an ISO-certified steel mill in Baoji, China (known as the "Titanium City"), ensuring that every batch of products meets ASTM standards.

Grade 5 vs. Grade 2 Titanium: Why It Matters

Many buyers initially consider Grade 2 titanium for its superior corrosion resistance in certain acidic environments. However, when load-bearing capability enters the equation, Grade 5 becomes the definitive choice. Grade 2 offers tensile strength around 344 MPa, sufficient for pure corrosion applications but inadequate for stressed assemblies.In contrast, Grade 5 titanium bolts deliver minimum tensile strength of 895 MPa — a 2.6× increase.From our own production data across 50,000+ fastener lots shipped since 2018, actual tensile values typically range between 930–1,000 MPa, exceeding the ASTM minimum by 4% to 12%. This margin ensures safety-critical performance in aerospace, racing, and subsea applications.

Technical Specifications & Mechanical Properties

All grade 5 titanium bolts manufactured by TSM TECHNOLOGY CO conform to the following mechanical specifications. Each production lot undergoes tensile testing, hardness verification, and dimensional inspection before shipment.

PropertyValue (Minimum)Typical TSM ProductionStandard Reference
Tensile Strength (Ultimate)895 MPa (130 ksi)930–1,000 MPaASTM B348, AMS 4928
Yield Strength (0.2% offset)828 MPa (120 ksi)850–920 MPaASTM B348
Elongation at Break10%12–14%ASTM E8
Reduction of Area25%28–35%ASTM E8
Modulus of Elasticity113.8 GPaTypical for Ti-6Al-4V
Density4.43 g/cm³
Hardness (Rockwell C)30–36 HRC32–34 HRCASTM E18

Note: Values represent typical performance for forged head with rolled thread construction. Cut-thread fasteners (common in low-cost marketplaces) may exhibit reduced fatigue life.

Chemical Composition per ASTM B348

ElementAluminum (Al)Vanadium (V)Iron (Fe) maxOxygen (O) maxCarbon (C) maxNitrogen (N) maxHydrogen (H) maxTitanium (Ti)
Composition5.50–6.75%3.50–4.50%0.40%0.20%0.08%0.05%0.015%Remainder (~89%)

Full material test reports (MTR / EN 10204 3.1) are supplied with every order, providing complete traceability from titanium sponge to finished fastener. We do not trade “mystery metal” — every batch is certified.

Dimensional Range & Stock Availability

TSM TECHNOLOGY CO maintains an active stock of over 800 SKUs across metric (M4 to M24) and imperial (UNC/UNF) threading, covering hex head, socket head cap, countersunk, and flange bolt configurations.Custom lengths, shoulder diameters, and non-standard threads are manufactured on-demand with typical lead times of 14–21 working days for repeat orders.

Standard Stock Sizes (Ready to Ship)

Thread Size (Metric)Typical Lengths (mm)Head Types AvailableStock Level
M4 × 0.78, 10, 12, 16, 20, 25Socket Cap, Button, CountersunkHigh
M5 × 0.810, 12, 16, 20, 25, 30, 35Hex, Socket Cap, Flange, CountersunkHigh
M6 × 1.012, 16, 20, 25, 30, 35, 40, 50Hex, Socket Cap, Flange, Countersunk, Hex FlangeVery High
M8 × 1.2516, 20, 25, 30, 35, 40, 45, 50, 60, 70Hex, Socket Cap, Flange, Countersunk, StudVery High
M10 × 1.5 (std) / M10 × 1.25 (fine)20, 25, 30, 35, 40, 50, 60, 70, 80, 100All head types + brake caliper boltsHigh
M12 × 1.75 (std) / M12 × 1.5 / M12 × 1.2525, 30, 35, 40, 50, 60, 70, 80, 100, 120Hex, Socket Cap, Flange, Wheel BoltsMedium-High
M14 × 2.0 / M14 × 1.530, 40, 50, 60, 70, 80, 100Hex, Socket Cap, FlangeMedium
M16 × 2.0 / M16 × 1.540, 50, 60, 70, 80, 100, 120Hex, Socket Cap, Heavy HexMedium
M18 – M2450–150 mm (various)Hex, Stud, Heavy HexMade to Order (7–10 days)

Lead time note: In-stock items ship within 48 hours. Custom manufacturing typically requires 14–21 working days depending on complexity and volume. We maintain buffer stock of raw bar to expedite custom orders during peak seasons.

Manufacturing Process & Quality Control: Beyond Basic Specifications

All titanium gr5 bolts are not created equal. A bolt that meets ASTM B348 chemical composition can still fail prematurely if produced with cut threads instead of rolled threads, or if headed at incorrect temperatures. At TSM, we employ aerospace-derived manufacturing protocols that distinguish our fasteners from generic marketplace alternatives.

Forged Heads (Hot Heading)

Our bolt heads are hot forged at approximately 900°C, a process that preserves continuous grain flow from the shank into the head.This is in stark contrast to fully machined bolts, where the grain structure is severed at the head-to-shank transition — creating a stress riser that can initiate fatigue cracks. For applications such as connecting rods, suspension linkages, or airframe assemblies, forged heads are non-negotiable.

Rolled Threads, Not Cut Threads

Here is a detail that separates industrial-grade fasteners from premium ones: thread forming method. Rolled threads are cold-formed under high pressure, compressing the material and inducing beneficial compressive residual stresses at the thread root. The result? Fatigue life improved by approximately 30% over cut threads.Our rolling dies are precision-ground to class 6g/6H tolerances per ISO 965, ensuring consistent fitment and minimizing galling risk when torqued against titanium nuts or aluminum components.

Surface Finishes & Anti-Galling Treatments

Uncoated titanium is susceptible to galling, especially when tightened against itself or stainless steel. TSM offers multiple surface treatments tailored to application requirements:

  • Natural (As-Machined): Bright metallic finish, suitable for dry assemblies with anti-seize compound.

  • PVD Coatings (DLC / Black): Diamond-Like Carbon provides a low-friction surface that dramatically reduces galling tendency and improves wear resistance. Popular for motorsports and premium bicycle components.[reference:8]

  • Anodized Colors (Blue, Gold, Purple, Rainbow): Electrochemical oxide layer for corrosion enhancement and aesthetic differentiation. Custom color matching available for volume orders.

8-Stage Quality Control Protocol

Every batch passes through our documented QC workflow: (1) Raw material spectrometer verification, (2) Dimensional inspection post-heading, (3) Thread profile measurement via optical comparator, (4) Go/No-Go gauge check, (5) Hardness testing (HRC), (6) Tensile testing on sample coupons, (7) Visual and surface defect inspection, (8) Final certification and packing. This multi-layered approach has resulted in a defect rate below 0.15% across 1.2 million fasteners shipped since 2020.

Price & Cost Factors for Grade 5 Titanium Bolts

The grade 5 titanium bolts price varies based on several interconnected factors. Providing transparent guidance helps buyers budget accurately. Below is our internal pricing framework derived from over six years of quoting data across 2,400+ customer orders.

Primary Price Drivers

FactorImpactTSM Typical Range
Size (Diameter & Length)Exponential increase with diameterM4–M6: $0.15–$0.80/pc | M10–M12: $1.20–$4.50/pc
Order QuantitySignificant economies of scale above 1,000 pcsMOQ 100 pcs; volume discounts at 500, 1,000, 5,000+ pcs
Surface Treatment+10–30% premium for PVD / anodizingNatural: baseline; DLC Black: +25% typical
Custom / Non-StandardTooling amortization may applyOne-time NRE $150–$500 (waived for >5,000 pcs)
Certification LevelEN 10204 3.1 included; additional testing optional3.2 witness testing: +$300 day

Typical landed cost example: M8 × 30mm hex head Gr5 bolt, natural finish, qty 2,000 pcs: approximately USD $0.65–0.85 per piece FOB China (air freight additional). DDP delivery options available for EU and North American destinations with duties prepaid.

Based on past order sales data, purchasing personnel can reduce total procurement costs by 12% to 18% by bulk purchasing multiple specifications of fasteners (e.g., ordering M5, M6, M8, and M10 simultaneously) compared to ordering in smaller quantities. This is primarily due to the spread of setup costs and reduced individual item handling. Our in-house sales team can provide a package quote within 24 hours.

TSM TECHNOLOGY CO: Your Direct Manufacturer in China

Located in Shaanxi Province, China — the epicenter of the nation‘s titanium industry — TSM TECHNOLOGY CO operates as a primary manufacturer and supplier, not a trading intermediary. This distinction matters: we control raw material sourcing, in-house forging and CNC machining, thread rolling, All processes are completed at the TSM factory. The result is consistent quality, complete traceability, and price advantages of 25–40% compared to Western distribution channels.

Factory Capabilities Snapshot

  • Manufacturing footprint: 5,800 m² facility with 36+ CNC machining centers and dedicated forging cells

  • Monthly capacity: 350,000+ finished fasteners (standard sizes) plus custom CNC capability

  • Raw material inventory: 12+ tons of Grade 5 titanium bar stock maintained at all times

  • Certifications: ISO 9001:2015, with material certifications per ASTM B348, AMS 4928, DIN 912/933/912

  • Export experience: Serving customers in North America, Europe, Australia, Japan, and Southeast Asia since 2014

OEM & Private Label Services

Beyond standard catalog items, TSM offers comprehensive OEM manufacturing: custom head markings (laser engraving), proprietary packaging (retail blister, bulk workshop packs), and exclusive color finishes. Our engineering team can reverse-engineer from samples or CAD drawings. Typical custom order lead time: 15–20 days for new tooling development.

TSM factory aerial view — Shaanxi, China

TSM TECHNOLOGY CO manufacturing campus in Baoji, Shaanxi — integrated production from bar stock to finished fasteners.

Frequently Asked Questions: Grade 5 Titanium Bolts

What torque should I use for Grade 5 titanium bolts?

Titanium has a lower modulus of elasticity than steel, which means it stretches more at a given torque value. A general rule: reduce torque by 25–30% compared to equivalent steel fasteners. For an M10 Grade 5 bolt, approximately 75 N·m is typical versus 100 N·m for 8.8 steel. Always consult torque tables specific to your assembly conditions and use anti-seize compound to prevent galling.[reference:18]

Are Grade 5 titanium bolts magnetic?

No. Titanium is non-magnetic, making it ideal for applications near MRI equipment, sensitive electronics, and magnetic instrumentation. This property also eliminates concerns about stray magnetic fields affecting performance.

What is the difference between Grade 5 and Grade 8 steel bolts?

Grade 8 steel bolts have tensile strength around 830–1,030 MPa — comparable to Grade 5 titanium (≥895 MPa). However, titanium bolts weigh approximately 45% less and exhibit vastly superior corrosion resistance. In salt spray testing, Grade 5 titanium corrodes at ~0.0005 mm/year, while Grade 8 steel fails within 200–500 hours depending on coating.[reference:19] The choice depends on whether weight savings and corrosion immunity justify the higher material cost.

Can Grade 5 titanium bolts be used with aluminum?

Yes, but with caution. Titanium and aluminum are galvanically compatible (both are active metals), so dissimilar metal corrosion is minimal. However, aluminum is soft, so thread engagement must be sufficient to prevent stripping. Also, use anti-seize to prevent galling between titanium threads and aluminum internal threads.

What certifications are available?

Standard shipments include a Certificate of Conformance and Material Test Report (EN 10204 3.1). Additional options: 3.2 witness testing, PMI (Positive Material Identification) reports, and full tensile/hardness test reports. 

🔗 Explore Related Products & Resources:

Titanium hex bolts        Titanium Nuts & Washers          Custom OEM Fastener Solutions          About Us

Secure Your Supply of Premium Grade 5 Titanium Bolts

Whether you need 500 pieces for a prototype run or 50,000 pieces for production, TSM TECHNOLOGY CO delivers consistent quality, competitive pricing, and reliable lead times. Talk to our engineering team today.


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