What are TC4 titanium pan-head hex socket screws?

TC4 titanium pan-head (mushroom) hex socket screws use aerospace-grade Ti-6Al-4V (≥900 MPa 40% lighter than steel) with a wide canopy head that spreads load 20–30% better and a hex socket for slip-free driving. BJCJTi makes them to ISO 7380 GBT 3098.6 ASTM F467 in M4–M8 lengths 8–300 mm.

How corrosion-resistant are TC4 pan-head titanium screws?

BJCJTi's TC4 pan-head titanium screws withstand 5000 hours of salt spray without rusting thanks to titanium's self-healing oxide film—ideal for outdoor humid and marine use. They also stay stable from high to low temperatures and resist fatigue under vibration.

What standards and sizes do BJCJTi TC4 pan-head screws meet?

BJCJTi TC4 pan-head hex socket screws comply with ISO 7380 GBT 3098.6 and ASTM F467 in M4M5M6M8 (metric coarse fine on request) lengths 8–300 mm customizable hardness HRC 34–38 6g rolled threads with natural black blue gold or rainbow anodized finishes.

Which applications use TC4 pan-head titanium screws?

TC4 pan-head titanium screws suit motorcycles (disc rotors footpegs bars) bicycles (frame wheelset stem) automotive (wheels chassis engine bay) outdoor gear and precision machinery (medical model aircraft). BJCJTi supplies them where lightweight rust-free flush-strong fastening is required.

Can BJCJTi customize TC4 pan-head screws (color length logo)?

Yes. BJCJTi offers customization of specification length anodized color and logo on TC4 pan-head titanium screws backed by 100% material inspection 3.1 certificates and 7-day exchange. With OEMODM capability the company serves modification brands needing branded color-matched titanium fasteners.

News Categories

Titanium alloy umbrella-head hex socket screws

2026-06-14

TC4 Titanium Alloy Pan-Head Hex Socket Screws: Lightweight, High-Strength, and Corrosion-Resistant—Specialized Bolts for Motorcycles, Bicycles, and Customization

Key Selling Points

✅ Aerospace-grade TC4 material (Ti-6Al-4V), with a strength of ≥900 MPa, comparable to high-strength steel

✅ Extremely lightweight, with a density of just 4.5 g/cm³—40% lighter than steel, offering weight reduction without compromising strength

✅ Exceptional corrosion resistance, withstanding 5,000 hours of salt spray testing without rusting, ensuring long-lasting durability in outdoor and humid environments

✅ Superior load-bearing cap design; large-diameter canopy distributes pressure to prevent collapse and loosening

✅ Roll-formed threads with 6g precision; full-profile threads ensure smooth, slip-free engagement ✅ Multi-color anodized finishes—natural titanium, black, blue, gold, rainbow, and more—combining practicality with aesthetic appeal

Product Specifications

Material: TC4 (Grade 5) titanium alloy / TA2 pure titanium (optional)

Standards: ISO 7380, GB/T 3098.6, ASTM F467

Sizes: M4/M5/M6/M8 (common), lengths 8–300 mm (customizable)

Thread: Metric coarse thread (M4×0.7, M6×1.0); fine thread available upon request

Head: Pan head (mushroom head), hex socket drive

Surface: Natural passivated, hard anodized, PVD coating

Hardness: HRC 34–38; Tensile strength: ≥900 MPa (TC4)

Colors: Titanium, black, blued, gold, rainbow, purple, green

Titanium alloy umbrella-head hex socket screws (1)

Titanium alloy umbrella-head hex socket screws (2)

Product Details

1. Umbrella-head Design · More Stable Load Distribution

The umbrella-head diameter is 2–3 times the thread diameter (e.g., M6 head diameter ≈ 14 mm), with a 30°–60° angle of inclination. This reduces contact surface pressure by 20%–30%, effectively preventing workpiece deformation and screw loosening.

2. Hex Socket · Reliable Installation and Removal

Precision hex socket (M6 corresponds to a 4mm wrench) ensures even torque transfer, minimizes slippage and chipping, and is compatible with standard hex tools.

3. Precision Thread Rolling・Durable Threads

Utilizes a specialized titanium thread rolling process that ensures continuous metal fibers, resulting in high-strength, burr-free threads. 100% pass rate on go/no-go gauges, with smooth engagement and anti-seizing properties.

4. Material Assurance: Safe and Durable

Made from TC4 titanium alloy, which combines high strength with high toughness. Resistant to fatigue and vibration, with stable performance in high- and low-temperature environments, and eliminates the risk of hydrogen embrittlement.

5. Colorful Finish: Outstanding Aesthetics

Hard anodized finish ensures uniform color, wear resistance, and scratch resistance, offering both corrosion protection and decorative appeal to suit aftermarket aesthetics.

Applications

Motorcycles: Disc brake rotors, footpegs, handlebars, and engine side cover modifications

Bicycles: Frame, wheelsets, stem, and seatpost lightweight upgrades

Automotive: Wheels, chassis, interior, and high-performance engine bay fasteners

Outdoor Equipment: Camping gear, water sports equipment, and corrosion-resistant gear

Precision Machinery: Medical equipment, model aircraft, and high-end instruments

Production Process

Raw material inspection (hydrogen and oxygen content control) → Wire drawing and sizing → Acid pickling and lubrication → Warm heading (TC4) → Chamfering and deburring → Precision thread rolling → Ultrasonic cleaning → Vacuum heat treatment (TC4) → Anodizing → 100% final inspection → Moisture-proof packaging

Common Issues and Solutions

Seizing / Jamming: Apply a specialized anti-seizing compound before assembly, control torque, and tighten in stages

Surface Discoloration: Avoid scratches from hard objects; choose the hard anodized version

Head Cracking: Use genuine TC4 material; avoid installation with excessive torque

Specifications Table (M6 Example)

Specification	Head Diameter (mm)	Head Height (mm)	Hexagon Socket Diagonal (mm)	Length (mm)
M6×12	14	5	4	12
M6×16	14	5	4	16
M6×20	14	5	4	20
M6×25	14	5	4	25
M6×30	14	5	4	30

Titanium alloy umbrella-head hex socket screws (3)

Titanium alloy umbrella-head hex socket screws (4)

After-Sales Guarantee

✅ 100% material inspection; 3.1 material certificate provided

✅ 7-day no-questions-asked return and exchange policy (excluding damage caused by human error)

✅ Customization services: Specifications, length, color, and logo can all be customized

✅ Professional technical support, including product selection and assembly recommendations