Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
When you need a reliable, tool-free fastening solution for panels, enclosures, jigs, or fixtures, standard hex bolts slow you down. These M6 knurled thumb screws with stepped hand grip knobs are designed for makers, workshop builders, and equipment assemblers who need repeatable, finger-tight clamping without reaching for a wrench.
Each screw is machined from aluminium alloy and features a stepped cylindrical knob with a knurled outer surface for a firm, non-slip grip. The M6 thread diameter is consistent across all variants, with thread lengths ranging from 10 mm to 60 mm (approx. 0.39 in to 2.36 in) and handle diameters of either 12 mm (~0.47 in) or 20 mm (~0.79 in), paired with a 20 mm handle length. Available in Red, Black, and White anodised finishes.
Ideal for CNC router spoilboard clamping, 3D printer bed levelling thumb screws, electronics enclosure panel fasteners, and DIY jig assembly bolts — wherever quick-release hand tightening is needed without tools.
The stepped cylindrical grip provides multiple contact surfaces for confident finger torque, even with gloves on.
Standard M6 × 1.0 mm pitch is compatible with the vast majority of metric tapped holes, T-nuts, and threaded inserts.
Aluminium alloy construction keeps weight low while delivering adequate clamping force for light-to-medium duty applications.
Red, Black, and White finishes provide corrosion resistance and allow colour-coded identification in multi-axis or multi-zone setups.
Thread lengths from 10 mm to 60 mm and handle diameters of 12 mm or 20 mm let you match the screw to your exact stack-up thickness.
Order 1, 5, 10, or 50 pieces to suit prototyping, small-batch builds, or full production runs.
| Thread Diameter | M6 |
|---|---|
| Thread Pitch | 1.0 mm |
| Thread Length (L) | 10 / 15 / 20 / 25 / 30 / 35 / 40 / 45 / 50 / 55 / 60 mm |
| Handle Diameter (D) | 12 mm or 20 mm |
| Handle Length | 20 mm |
| Material | Aluminium Alloy |
| Head / Knob Style | Stepped Cylindrical Knurled Knob (Flat underside) |
| Drive Style | Hand-tightened (no tool required) |
| Finish / Colour | Anodised — Red, Black, or White |
| Pack Quantity | 1 / 5 / 10 / 50 pcs (see variant options) |
| Weight per piece | See variant options |
Measure the total thickness of the material stack you need to clamp, then add 3–5 mm for thread engagement beyond the bottom surface. For example, if your panel is 15 mm thick, a 20 mm thread length (M6×20) gives adequate engagement. If you are threading into a blind hole, match the thread length to the hole depth minus 2 mm clearance.
The D12 (12 mm diameter) handle is more compact and suited to tight spaces or lightweight panels where a smaller footprint is preferred. The D20 (20 mm diameter) handle provides a larger gripping surface, making it easier to apply more torque by hand — ideal for thicker materials or applications requiring a firmer clamp.
These aluminium alloy thumb screws are designed for light-to-medium duty hand-tightened clamping — such as securing panels, jig components, or enclosure covers. They are not intended for high-torque structural joints that require steel fasteners. For applications requiring significant clamping force, consider using them with a backing nut or washer to distribute load.
The anodised coating on aluminium alloy provides a moderate level of corrosion resistance suitable for indoor workshop, electronics, and light industrial environments. The finish resists mild moisture and oxidation. For outdoor or high-humidity environments, periodic inspection is recommended. The anodising also adds surface hardness compared to bare aluminium.
Yes. The M6 × 1.0 mm thread is the standard metric coarse pitch for M6 fasteners and is compatible with M6 T-nuts (commonly used in aluminium extrusion profiles and MDF spoilboards), M6 threaded inserts, and any tapped M6 hole. Always verify the thread pitch of your mating component before ordering.
Yes — these are a popular choice for both applications. For 3D printer bed levelling, the knurled knob allows precise quarter-turn adjustments by feel. For CNC spoilboard clamping, the stepped knob provides enough grip to tighten securely by hand between cuts. The M6×10 or M6×15 variants are commonly used for bed levelling, while longer variants suit thicker spoilboard stacks.
For prototyping or single-machine builds, the 5-pack or 10-pack offers good value. If you are equipping multiple machines, building a production jig, or stocking a workshop, the 50-pack provides the best per-unit cost. Single-piece orders are available if you need to test fit before committing to a larger quantity.
