Titanium Alloy Button Head Hex Drive Screws M2 M2.5 M3 M4

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Sale price$17.11 USD
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In stock (500 units), ready to be shipped

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Description

 

Titanium Button Head Hex Screws M2–M4 — Lightweight Fasteners for Precision Builds

When every gram counts and corrosion is not an option, standard steel screws fall short. Engineers, RC hobbyists, drone builders, and precision fabricators working with tight tolerances need fasteners that are both strong and light — without sacrificing thread integrity over time. These titanium alloy button head hex drive screws are built for exactly those demands.

Each screw is machined from titanium alloy (Ti-6Al-4V grade equivalent) with a low-profile button head and an internal hex socket drive. Available in thread diameters M2, M2.5, M3, and M4, with lengths ranging from 4mm (≈5/32") to 30mm (≈1-3/16") — note that listed length does not include the head. Packs are available in 10, 20, 30, 50, 80, or 100 pieces to match your project scale.

Typical use cases include FPV drone frame assembly, RC car chassis fastening, camera rig mounting, aluminum enclosure builds, and lightweight bicycle component work — anywhere that titanium hex socket screws for electronics or small machine bolts for precision assemblies are the right call.

🔩 Compatible with standard ISO metric coarse threads — fits M2, M2.5, M3, and M4 tapped holes, threaded inserts, and metric nuts per ISO 68-1.

✅ Key Features of These Titanium Button Head Hex Drive Screws

  • 🛠️Lightweight Titanium Alloy Construction — Ti-6Al-4V grade equivalent material weighs roughly 40–45% less than stainless steel, making these titanium machine bolts ideal for weight-sensitive builds like drone frames and RC chassis.
  • 🔘Low-Profile Button Head Design — The rounded dome head sits flush and low, reducing snag points in compact assemblies and providing a clean finished look on exposed fastener locations.
  • 🔑Hex Socket Drive (Allen Key) — Internal hex drive allows high torque transfer in tight spaces where a screwdriver cannot reach; compatible with standard metric hex keys (1.5mm for M2 up to 3mm for M4).
  • 🛡️Natural Corrosion Resistance — Titanium alloy does not rust and resists salt spray, moisture, and mild chemicals without coatings or plating that can chip or wear off over time.
  • 📐Wide Size Range in One Listing — Covers M2 through M4 diameters and lengths from 4mm to 30mm, so you can source multiple sizes for a single project without hunting across multiple listings.
  • 📦Flexible Pack Quantities — Choose from 10 to 100 pieces per pack; larger quantities reduce per-piece cost for production runs or workshop stock of titanium hex socket screws for electronics and mechanical builds.

📐 Technical Specifications — Titanium Button Head Hex Drive Machine Screws

Material Titanium alloy (Ti-6Al-4V grade equivalent)
Head Style Button head (low-profile dome)
Drive Type Hex socket (Allen / internal hex)
Thread Standard ISO metric coarse (M2, M2.5, M3, M4)
Thread Diameter Range M2 – M4
Length Range (excl. head) 4mm (≈5/32") – 30mm (≈1-3/16")
Available Sizes M2×4, M2×5, M2×6, M2×8, M2×10, M2×12, M2.5×6, M2.5×8, M2.5×10, M3×5, M3×6, M3×8, M3×10, M3×12, M3×14, M3×16, M3×20, M3×25, M3×30, M4×8, M4×10, M4×12
Hex Key Size M2: 1.5mm / M2.5: 2mm / M3: 2.5mm / M4: 3mm
Pack Quantities 10, 20, 30, 50, 80, 100 pcs
Surface Finish See variant options
Tensile Strength Contact us to confirm by size
Country of Origin Contact us to confirm
⚠️ Length Note: All listed lengths are shank length only and do not include the button head height. Please account for head height (typically 0.8–1.5mm depending on diameter) when calculating total installed depth.

❓ Frequently Asked Questions

How do I choose the right length for these titanium screws?

Measure the total thickness of the materials being joined, then subtract the head height (typically 1–2mm for button head styles). The remaining value is generally the length you need. For example, joining two 5mm panels would typically call for an M3×8 or M3×10.

Length in the listing does not include the head. Quick inch reference: 4mm ≈ 5/32", 8mm ≈ 5/16", 12mm ≈ 15/32", 20mm ≈ 25/32", 25mm ≈ 1", 30mm ≈ 1-3/16".

How strong are titanium alloy screws compared to stainless steel?

Titanium alloy (typically Grade 5 / Ti-6Al-4V) generally offers a tensile strength comparable to or exceeding 316 stainless steel while weighing roughly 40–45% less. For small-diameter fasteners like M2–M4, titanium is well-suited to precision assemblies where weight matters, though it is generally not recommended for high-torque structural applications without proper thread engagement.

Can these screws be used outdoors or in wet environments?

Titanium alloy is naturally corrosion-resistant and performs well in most outdoor and marine-adjacent environments. It does not rust like carbon steel and generally resists salt spray and moisture. For prolonged submersion or highly acidic environments, contact us to confirm suitability.

What thread standard do these screws use — are they compatible with standard metric hardware?

These screws use standard ISO metric coarse threads (M2, M2.5, M3, M4). They are compatible with standard metric nuts, threaded inserts, and tapped holes following ISO 68-1 specifications. They are not compatible with UNC/UNF inch-standard threads.

What hex key (Allen wrench) size do I need?

Button head hex drive screws in these sizes typically require the following hex keys:

  • M2 → 1.5mm hex key
  • M2.5 → 2mm hex key
  • M3 → 2.5mm hex key
  • M4 → 3mm hex key

Always verify with a test fit before applying full torque to avoid rounding the socket.

Are these screws suitable for RC cars, drones, or electronics builds?

Yes. The M2–M4 size range and lightweight titanium alloy construction make these screws a popular choice for RC vehicle chassis, FPV drone frames, camera mounts, and PCB enclosures. The button head profile sits low and reduces snagging, which is generally preferred in compact builds where titanium hex socket screws for electronics are commonly specified.

How many screws come in each pack, and which quantity should I order?

Pack sizes are available in 10, 20, 30, 50, 80, and 100 pieces per order. Select your preferred quantity using the Pack of Quantity option above. Larger packs offer a lower per-piece cost and are a good choice if you are stocking a workshop or running a production build.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

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