🎨 Product Overview: Aluminum 7075 Flat Head Allen Bolts – M3 to M6, Color Anodized (10mm Length)
Looking for lightweight, strong, and stylish fasteners for your custom bike, drone, RC car, or electronics project? These M3, M3.5, M4, M5, and M6 flat head Allen (hex socket) bolts are machined from high‑strength aluminum alloy 7075 – then anodized in your choice of colors: Wine Red, Pink, Gold, Royal Blue, Sky Blue, Black, Silver, Green, Purple, or Brown Orange. The 90° countersunk head sits flush in tapered holes for a smooth, professional finish, while the internal hex drive lets you apply torque without slipping. Fully threaded with standard coarse metric pitch, each bolt is 10mm in length (under head) – perfect for panel mounting, accessories, and decorative fastening where steel would be too heavy or out of place. Lightweight, corrosion‑resistant, and available in vibrant colors.
✨ Why Choose 7075 Aluminum Color Anodized Flat Head Allen Bolts
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7075 aluminum alloy – High strength (comparable to many steels) at about one‑third the weight. Excellent for weight‑sensitive builds like bicycles, drones, and racing equipment.
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Wide color selection – 10 anodized finishes – Choose from Wine Red, Pink, Gold, Royal Blue, Sky Blue, Black, Silver, Green, Purple, or Brown Orange. Match your build’s aesthetic or add a custom accent.
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Flat countersunk head (90°) – Sits flush in tapered holes for a snag‑free, aerodynamic, and professional finish. Ideal for panel mounting and visible assemblies.
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Hex socket (Allen) drive – Internal hex provides positive engagement, eliminates cam‑out, and allows precise torque control without damaging the recess.
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Metric sizes: M3, M3.5, M4, M5, M6 – Covers the most common small‑to‑medium diameters for electronics, RC vehicles, motorcycle trim, and lightweight machinery.
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Standard 10mm length (under head) – Ideal for 3‑10mm thick panels and general fastening. Other lengths available upon request – contact us.
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Fully threaded, coarse metric pitch – Standard threads (M3x0.5, M3.5x0.6, M4x0.7, M5x0.8, M6x1.0) run the entire shank for maximum grip.
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GB standard, precision machined – Clean threads, burr‑free heads, and consistent dimensions.
📏 Technical Specifications – Aluminum 7075 Flat Head Allen Bolts
| Specification |
Details |
| Product Type |
Flat Head Countersunk Allen (Hex Socket) Machine Screws |
| Material |
Aluminum alloy 7075 |
| Head Style |
Flat / Countersunk (90°) |
| Drive Style |
Hex key (Allen) – internal hex socket |
| System of Measurement |
Metric |
| Thread Sizes (Diameter) |
M3, M3.5, M4, M5, M6 |
| Thread Pitch (coarse) |
M3x0.5, M3.5x0.6, M4x0.7, M5x0.8, M6x1.0 |
| Length (under head) |
10mm (standard – other lengths available on request) |
| Thread Type |
Fully threaded |
| Available Colors |
Wine Red, Pink, Gold, Royal Blue, Sky Blue, Black, Silver, Green, Purple, Brown Orange |
| Standard |
GB |
❓ FAQs – 7075 Aluminum Color Allen Bolts
🔸 How strong are 7075 aluminum bolts compared to steel?
7075 aluminum has a tensile strength comparable to mild steel (around 570 MPa) but at roughly one‑third the weight. It’s much stronger than standard 6061 aluminum. These bolts are ideal for weight‑sensitive applications where high strength is still required – think bicycle components, drone frames, and racing gear. For extremely high torque or load‑bearing structural steel connections, stick with steel.
🔸 Will the anodized color wear off or fade over time?
Anodizing is an electrochemical process that creates a durable, corrosion‑resistant oxide layer bonded to the aluminum surface. It will not peel or flake like paint. However, heavy abrasion or constant contact with hard materials may eventually wear through the anodized layer. For typical indoor and outdoor decorative/light structural use, the color lasts for years.
🔸 What hex key (Allen wrench) size do I need for M3 through M6?
Standard hex socket sizes: M3 uses 2mm, M3.5 uses 2.5mm, M4 uses 2.5mm or 3mm, M5 uses 3mm or 4mm, M6 uses 4mm or 5mm (depending on head design). A quality metric hex key set (2mm–5mm) will cover all these. Check fit before applying torque.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from just under the head to the tip. Length is measured from the underside of the head (the flat bearing surface) to the tip, not including the head. For these 10mm bolts, the threaded shank is exactly 10mm long.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are standard machine screws – they require a matching metric nut (M3, M3.5, M4, M5, M6) or a pre‑tapped hole. They are not self‑tapping. For best corrosion compatibility, use aluminum or stainless steel nuts.
🔸 I need a different length. Do you offer other sizes?
Yes – while this listing is for 10mm length, we offer many other lengths for each diameter (e.g., 6mm, 8mm, 12mm, 16mm, 20mm, 25mm, 30mm, etc.). If the length you need is not listed, please contact customer service – we can often source or custom‑order it for you.
