M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer
Roll over image to zoom in Click on image to zoom
M3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYerM3 M4 M5 M6 Socket Button Screws - Dome Head - Hex Allen Bolts - Aluminum Alloy - HomeDIYer

M3 M4 M5 M6 Aluminum Button Head Socket Screws Dome Head Hex Allen Bolts – Natural Finish

HomeDIYer
No reviews

By HomeDIYer®

Price:
$2.20 USD
Stock:
In stock (1000 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact BLIK Diners Club Discover EPS Google Pay iDEAL Wero JCB Maestro Mastercard Multibanco MobilePay PayPal Przelewy24 Shop Pay Twint Union Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Limited Offer — Spend More, Save More
Spend $55+
Save $5
Spend $100+
Save $10
Spend $200+
Save $25
✅ Discount applied automatically at checkout 🚚 Free shipping on orders over $89
HomeDIYer DIY Expert Support

DIY Expert Support

Get fitment advice & recommendations

Mon–Fri  8:30 AM – 8:00 PM
WhatsApp
24-Hour Fast Ship
Arrives in 3–14 Days
Worldwide Shipping
30-Day Returns
1 tree planted with every purchase

Description

Aluminum Button Head Socket Screws — Dome Head, Hex Allen Drive, M3 to M6, Natural Finish

Standard steel button head screws add unnecessary weight and are prone to corrosion in lightweight precision builds where every gram matters — a real limitation in RC model frames, FPV drone assemblies, aviation model toy builds, and high-end bicycle frame construction where a low-profile, corrosion-resistant fastener with a clean natural aluminum finish is needed. These aluminum alloy button head socket screws combine a wide, low-profile dome head with an internal hex (Allen) socket drive, available in M3, M4, M5, and M6 thread diameters across a range of lengths from 6mm to 40mm.

Each screw is machined from high-strength aluminum alloy to GB metric standard with a natural (uncoated aluminum) finish for excellent corrosion resistance and oxidation resistance. The button head (dome head) profile provides a wider bearing surface than a standard cap head screw, distributing clamping load over a larger area while maintaining a low, rounded profile that resists snagging on adjacent components. The internal hex socket (Allen key) drive provides positive torque transfer without cam-out, making installation and removal clean and repeatable. Tolerance: ±0.3mm.

These aluminum button head socket screws are widely used in RC model vehicle and FPV drone frame assembly, aviation model toy accessories, high-end aluminum alloy bicycle frame builds, golf club head assembly, mechanical equipment, mold processing, computer case and electronics accessory mounting, and any lightweight precision build where a corrosion-resistant, low-profile dome head fastener with a hex Allen drive is needed across a range of M3 to M6 metric sizes and lengths.

✅ Available in M3, M4, M5, and M6 thread diameters. Lengths: M3 (6–30mm), M4 (6–30mm), M5 (6–30mm), M6 (8–40mm). Button head (dome head) profile with internal hex socket (Allen key) drive. Natural aluminum finish. GB metric standard. Tolerance: ±0.3mm. Select your Thread Diameter × Length from the variant options above.

✅ Key Features of These Aluminum Button Head Socket Screws

  • 🔘 Button Head (Dome Head) Profile — Wide Bearing Surface, Low-Profile Rounded Finish: The wide, low-profile dome head distributes clamping load over a larger bearing surface than a standard cap head screw, reducing the risk of pull-through in softer materials. The rounded dome profile resists snagging on cables, clothing, and adjacent components, making it a safer and cleaner choice for exposed fastener locations on RC model frames, bicycle components, and computer case panels.
  • 🔧 Hex Socket (Allen Key) Drive — Positive Torque, No Cam-Out: The internal hex socket drive provides positive torque transfer and resists cam-out during installation and removal, making it easier to achieve consistent tightening torque without damaging the drive recess. Compatible with standard metric hex (Allen) keys. The recessed drive also keeps the fastener head profile low and clean.
  • ⚡ High-Strength Aluminum Alloy — Lightweight, Non-Magnetic, Corrosion Resistant: Machined from high-strength heat-treatable aluminum alloy with good mechanical performance, good wear resistance, and good corrosion and oxidation resistance. Significantly lighter than steel fasteners and non-magnetic, making these screws ideal for weight-sensitive and magnetically sensitive precision builds such as RC models, FPV drones, and computer assemblies where every gram counts.
  • 🌟 Natural Aluminum Finish — Clean, Understated Metallic Appearance: The natural (uncoated) aluminum finish provides a clean, understated metallic appearance that complements bare aluminum frames, brushed aluminum panels, and natural-finish components without the color contrast of anodized alternatives. Suitable for builds where a consistent, neutral metallic fastener finish is preferred across all fastener locations.
  • 📐 Wide Size Range — M3 to M6, 6mm to 40mm: Available in M3, M4, M5, and M6 thread diameters with lengths ranging from 6mm to 40mm, covering a wide range of fastening requirements across RC model, aviation model, bicycle frame, computer case, and general DIY precision build applications. Select your exact Thread Diameter × Length combination from the variant options above.
  • 🔬 GB Metric Standard, ±0.3mm Tolerance — Consistent Thread Engagement: Manufactured to GB metric standard with ±0.3mm tolerance for consistent thread engagement and reliable fit across all sizes. Easy to process, good usability, and compatible with standard metric nuts, threaded inserts, and tapped holes of the corresponding size.

🎯 Who Is This For?

🚁 RC Model, FPV Drone & Aviation Model Builders

Ideal for RC model vehicle frames, FPV drone builds, and aviation model toy assemblies where lightweight, corrosion-resistant aluminum button head socket screws provide a low-profile, snag-resistant dome head finish with positive hex Allen drive torque across a wide range of M3 to M6 metric sizes and lengths.

🚴 Bicycle Frame & Sports Equipment Builders

Used in high-end aluminum alloy bicycle frame assembly and sports equipment builds where lightweight, corrosion-resistant button head socket screws provide a wide bearing surface and low-profile dome head finish on frame panels, brackets, and component mounting points.

🖥️ Computer Case Modders & Electronics Builders

Suitable for computer case panel fastening, bracket mounting, and electronics enclosure assembly where lightweight aluminum button head socket screws provide a clean, low-profile dome head finish on panels and brackets with a neutral natural aluminum appearance that complements brushed aluminum and bare metal case aesthetics.

🔧 Mechanical Equipment & DIY Precision Builders

Suitable for mechanical equipment, mold processing, golf club head assembly, and any DIY precision build where a lightweight, corrosion-resistant button head socket screw with a wide dome head bearing surface and hex Allen drive provides reliable fastening across a range of M3 to M6 metric sizes and lengths up to 40mm.

Material Aluminum Alloy (Natural Finish)
Screw Type Button Head Socket Screw (Dome Head, Hex Allen Drive)
Available Thread Diameters M3 / M4 / M5 / M6
Available Lengths M3: 6–30mm  |  M4: 6–30mm  |  M5: 6–30mm  |  M6: 8–40mm
Drive Type Hex socket (Allen key) — positive torque, no cam-out
Head Profile Button head (dome head) — wide bearing surface, low-profile rounded finish
Finish Natural aluminum (uncoated)
Standard GB Metric
Tolerance ±0.3mm
Typical Applications RC models, FPV drones, aviation model toys, bicycle frames, golf club heads, mechanical equipment, computer case mods, DIY precision builds

❓ Frequently Asked Questions

What is the difference between a button head screw and a cap head (socket head cap) screw?

A button head screw has a wide, low-profile dome-shaped head that provides a larger bearing surface and a rounded, snag-resistant profile. A cap head (socket head cap) screw has a taller, cylindrical head with a smaller diameter. Button head screws are preferred where a low-profile, snag-resistant head is needed, while cap head screws are preferred where higher torque capacity and a more compact head diameter are required.

What Allen key size do I need for each screw size?

Standard metric button head socket screws use the following hex key sizes: M3 typically uses a 2mm hex key, M4 typically uses a 2.5mm hex key, M5 typically uses a 3mm hex key, and M6 typically uses a 4mm hex key. Always verify with the specific screw before installation.

Are these screws lighter than steel button head screws?

Yes. Aluminum alloy is significantly lighter than steel — typically about one-third the weight for the same volume. These screws are also non-magnetic, making them suitable for applications where magnetic interference must be avoided, such as near sensitive electronics or sensors in RC models and drones.

Can these screws be used in outdoor applications?

The aluminum alloy construction provides good corrosion resistance and oxidation resistance, making these screws suitable for many outdoor applications under normal weather conditions. For highly corrosive environments (salt spray, prolonged immersion), stainless steel fasteners are generally recommended instead.

What is the maximum torque I can apply to these screws?

Aluminum alloy screws have lower tensile strength than steel screws of the same size. Button head screws also have a lower torque capacity than cap head screws due to the shallower hex socket depth. Apply torque carefully and avoid over-tightening, particularly in smaller sizes (M3, M4). For high-torque or high-load applications, steel fasteners are generally recommended.

Are these screws compatible with standard metric nuts and threaded inserts?

Yes. These screws are manufactured to GB metric standard with ±0.3mm tolerance and are compatible with standard metric nuts, threaded inserts, and tapped holes of the corresponding size (M3, M4, M5, or M6).

What lengths are available for each thread diameter?

M3: 6, 8, 10, 12, 14, 16, 18, 20, 25, 30mm. M4: 6, 8, 10, 12, 14, 16, 18, 20, 25, 30mm. M5: 6, 8, 10, 12, 15, 20, 25, 30mm. M6: 8, 10, 12, 15, 20, 25, 30, 40mm. Select your Thread Diameter × Length from the variant options above.

🛒 Select your Thread Diameter × Length above, then add to cart.

You may also like

Recently viewed