M4 M6 Knurled Thumb Screws Hand Grip Bolts 6-30mm Aluminum Anodised 10 Color D14

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M4 M6 Knurled Thumb Screws Hand Grip Bolts 6-30mm Aluminum Anodised 10 Color D14

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Thread Diameter x Length: M4 x 6mm

Colors: Burgundy Red

Amount: 1 pcs

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$2.43 USD

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M4 M6 Knurled Thumb Screws — Anodized Aluminum Hand-Grip Bolts in 10 Colors

When a standard hex bolt requires a tool you don't have on hand, knurled thumb screws become the practical solution. Makers, electronics assemblers, RC hobbyists, and enclosure builders who need tool-free fastening in tight spaces or frequent-access panels rely on hand-tightenable bolts that hold securely without stripping. These M4 M6 knurled thumb screws deliver exactly that — a finger-friendly grip pattern machined into an anodized aluminum body.

Each screw is machined from aluminum alloy and finished with an anodized coating available in 10 distinct colors: Burgundy Red, Rosy Red, Golden Yellow, Jewel Blue, Sky Blue, Black, Silver, Emerald, Dark Purple, and Brownish Orange. Thread diameters cover M4 and M6 in metric coarse pitch, with shank lengths ranging from 6 mm (approximately 0.24 in) to 30 mm (approximately 1.18 in). The knurled head diameter is typically 14 mm (~0.55 in), providing a comfortable grip surface for repeated hand-tightening cycles.

Typical applications include 3D printer frame panels and electronics enclosures where covers are removed regularly, RC car body mounts and drone frame assemblies requiring tool-free field adjustments, and custom PC case builds or DIY instrument panels where color-coded fasteners improve visual organization. The anodized surface resists light abrasion and adds a consistent color layer without adding measurable thickness to the thread profile.

🔩 Compatibility: Metric coarse thread (ISO 68-1). M4 variants fit M4-threaded inserts and nuts; M6 variants fit M6-threaded inserts and nuts. Verify thread pitch and insert depth before ordering.

✅ Key Features of These Knurled Thumb Screws

🔧 Tool-Free Tightening

The knurled head pattern provides enough grip surface to tighten and loosen by hand, eliminating the need for a screwdriver or hex key in frequent-access applications.

🎨 10 Anodized Color Options

Anodized finish in 10 colors allows color-coding by function, panel zone, or personal preference — useful for multi-component builds where visual differentiation matters.

⚖️ Lightweight Aluminum Construction

Aluminum alloy body keeps fastener weight low — relevant for weight-sensitive builds such as drone frames, RC vehicles, and portable enclosures.

📐 Six Size Combinations

Available in M4×6mm, M4×10mm, M6×10mm, M6×15mm, M6×20mm, and M6×30mm to cover a range of panel thicknesses and thread engagement depths.

🛡️ Anodized Surface Finish

The anodized layer provides light corrosion resistance and abrasion resistance compared to bare aluminum, extending the appearance life of the fastener in indoor and light-duty environments.

📦 Flexible Pack Quantities

Available in 1, 2, 5, and 10-piece quantities per variant, allowing single-unit sampling or multi-pack purchasing for larger builds without overstocking.

📐 Technical Specifications — Knurled Thumb Screws

Material	Aluminum alloy (anodized)
Thread Standard	Metric coarse (ISO 68-1)
Thread Diameters	M4, M6
Available Lengths	6 mm, 10 mm, 15 mm, 20 mm, 30 mm
Head Diameter	Typically 14 mm (~0.55 in)
Head Style	Knurled thumb screw (hand-grip)
Drive Style	Hand-tighten (no tool required)
Surface Finish	Anodized (10 color options)
Available Colors	Burgundy Red, Rosy Red, Golden Yellow, Jewel Blue, Sky Blue, Black, Silver, Emerald, Dark Purple, Brownish Orange
Pack Quantities	1 pcs, 2 pcs, 5 pcs, 10 pcs
Thread Pitch	See variant options
Weight per Piece	See variant options

❓ Frequently Asked Questions

What thread pitch do these thumb screws use?

These screws use standard metric coarse thread (ISO 68-1). M4 coarse pitch is 0.7 mm and M6 coarse pitch is 1.0 mm. If your application requires metric fine pitch, verify compatibility with your threaded insert or nut before ordering.

Are these screws strong enough for structural fastening?

Aluminum thumb screws are designed for light-duty, tool-free fastening applications such as panel covers, enclosure lids, and access doors. They are not intended for high-torque structural joints or load-bearing connections where steel fasteners are required. Use them where hand-tightening force is sufficient.

Will the anodized finish resist corrosion outdoors?

The anodized coating provides light corrosion resistance suitable for indoor and sheltered environments. Prolonged exposure to moisture, salt spray, or harsh chemicals can degrade the anodized layer over time. For outdoor or marine applications, stainless steel fasteners are a more appropriate choice.

Which size should I choose for a 3D printer or electronics enclosure?

M3 is common on many 3D printer frames, but M4 and M6 are widely used on enclosure panels and larger frame assemblies. Measure your existing threaded inserts or nuts to confirm the thread diameter. For panel thickness, choose a length that provides at least 1.5× the thread diameter in engagement depth — for example, M6 screws into a 10 mm panel would suit the M6×15mm or M6×20mm variants.

Can I use these on RC car bodies or drone frames?

Yes. M4 and M6 thumb screws are commonly used on RC car body mounts and drone frame standoffs where tool-free field removal is needed. Confirm the thread size matches your frame's threaded holes or inserts. The aluminum construction keeps weight low, which is beneficial for weight-sensitive builds.

How do I choose between the different pack quantities?

The 1-piece option is useful for sampling a color or size before committing to a larger quantity. The 2-piece and 5-piece packs suit small builds or repairs. The 10-piece pack offers a lower per-unit cost for larger projects or builds requiring multiple identical fasteners across several panels.

Do all colors have the same dimensions and thread specs?

Yes. The color is determined solely by the anodizing process and does not affect the thread dimensions, head diameter, or length. All 10 color options within the same size variant share identical mechanical specifications.

🛒 Select your Thread Diameter x Length, Color, and Amount above, then add to cart.

M4 M6 Knurled Thumb Screws Hand Grip Bolts 6-30mm Aluminum Anodised 10 Color D14

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Beschreibung

M4 M6 Knurled Thumb Screws — Anodized Aluminum Hand-Grip Bolts in 10 Colors

✅ Key Features of These Knurled Thumb Screws

📐 Technical Specifications — Knurled Thumb Screws

❓ Frequently Asked Questions

M4 M6 Knurled Thumb Screws Hand Grip Bolts 6-30mm Aluminum Anodised 10 Color D14

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