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Reaching for a wrench every time you need to adjust a panel, fixture, or enclosure slows down your workflow and frustrates even experienced builders. These aluminum knurled thumb screws are designed for DIYers, makers, and light industrial users who need fast, repeatable hand-tightening without sacrificing holding strength.
Each thumb screw features an aluminum alloy knurled handle in either D30mm × 30mm or D35mm × 30mm grip diameter, paired with a fully threaded bolt shank in M6, M8, M10, or M12 thread sizes. Bolt lengths range from 20mm to 130mm (approximately 0.79 in to 5.12 in). Available in Aluminium Color, Black, and Red anodized finishes.
Ideal for tool-free panel fastening on 3D printer enclosures, CNC machine guards, electronics rack assemblies, and DIY furniture jigs — anywhere you need quick-release aluminum thumb bolt hardware with metric threads.
| Material | Aluminum Alloy |
|---|---|
| Thread Sizes | M6, M8, M10, M12 |
| Bolt Length Range | 20mm – 130mm (0.79 in – 5.12 in) |
| Handle Diameter × Height | D30mm × 30mm or D35mm × 30mm |
| Head Style | Flat |
| Shape | Round (Knurled) |
| Drive Style | Hand Turn (No Drive) |
| End Type | Open |
| System of Measurement | Metric |
| Finish / Color | Aluminium Color, Black Anodized, Red Anodized |
| Quantity per Order | 1 Piece (per variant selected) |
| Thread Pitch | See variant options |
| Tensile Strength | See variant options |
Match the thread size (M6, M8, M10, or M12) to the tapped hole or threaded insert in your assembly. Use a thread gauge or check your existing fastener markings. M6 is the smallest and lightest option; M12 provides the most clamping force for heavier panels.
The bolt length should be at least equal to the material thickness plus the minimum thread engagement depth (typically 1× the thread diameter). For example, for M8 threading through 20mm material, choose at least a 30mm bolt to ensure adequate thread engagement.
These aluminum alloy thumb screws are designed for light-duty panel fastening, enclosure assembly, and tool-free adjustment applications. They are not rated for high-torque or load-bearing structural connections. For structural fastening, use steel-grade bolts with appropriate torque specifications.
The anodized Black and Red finishes provide a protective oxide layer that resists light corrosion and surface wear in dry indoor environments. For outdoor or high-humidity applications, additional protective measures are recommended. The natural Aluminium Color variant has inherent corrosion resistance from the aluminum alloy base material.
The D30mm handle is more compact and suited for tighter spaces or lighter-duty applications. The D35mm handle offers a larger grip surface, making it easier to apply more torque by hand — useful when tightening into harder materials or when wearing gloves. Both handles are 30mm tall.
Yes. These thumb screws use standard metric thread profiles (M6, M8, M10, M12) and are compatible with any standard metric nut, threaded insert, or tapped hole of the matching size. Always verify thread pitch compatibility before assembly.
Each variant listed is sold as 1 piece. If you need multiple pieces, simply increase the quantity at checkout or add multiple units to your cart. Contact us if you require bulk quantities for project or commercial use.
