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Tired of Phillips bits slipping and stripping screw heads mid-tightening? These Torx (star drive) button head machine screws are built for DIYers, fabricators, and tradespeople who need reliable torque transfer without cam-out. The six-lobe Torx recess grips your driver bit firmly — even under high load — making them the go-to choice for machine guards, electronics enclosures, furniture assembly, marine hardware, and outdoor structures.
Available in M3, M4, M5, M6, M8, M10, and M12 diameters with lengths from 4 mm to 120 mm (measured under the head), fully threaded in A2 (304) stainless steel — naturally corrosion-resistant, non-plated, and built to last indoors and out. Two head styles available: standard Torx button head and Torx With Pillars (raised collar variant). Thread pitches: M3×0.5, M4×0.7, M5×0.8, M6×1.0, M8×1.25, M10×1.5, M12×1.75.
Whether you're securing machine panels, assembling stainless steel railings, fitting marine deck hardware, building workshop jigs, or installing outdoor furniture, these Torx button head screws deliver a clean low-profile finish and consistent performance across every size and quantity option.
Secure guards, panels, and jigs on machinery and workbenches. The Torx drive handles high-torque power tool applications without slipping or damaging the recess — ideal for production environments.
The button head's low profile and clean dome finish make it ideal for visible fastening points on furniture, shelving, and cabinetry where aesthetics and snag-free surfaces matter.
A2 stainless resists rust and corrosion in rain, humidity, and coastal spray — perfect for garden furniture, deck fittings, railings, and outdoor structures that need to last.
M3 and M4 sizes are widely used in electronics enclosures, server racks, and instrument panels. The Torx drive prevents accidental cam-out that could damage sensitive components nearby.
| Product Type | Torx Button Head Machine Screws |
|---|---|
| Material | A2 Stainless Steel (304 / 18-8) |
| Drive Style | Torx (Star) — T8 to T40 depending on diameter |
| Head Style | Button Head (low-profile dome); Torx With Pillars variant also available |
| Thread System | Metric |
| Available Diameters | M3, M4, M5, M6, M8, M10, M12 |
| Thread Pitch (Coarse) | M3×0.5 / M4×0.7 / M5×0.8 / M6×1.0 / M8×1.25 / M10×1.5 / M12×1.75 |
| Thread Type | Fully Threaded |
| Length Range | M3: 4–50 mm · M4: 5–80 mm · M5: 6–100 mm · M6: 8–100 mm · M8: 10–120 mm · M10: 12–110 mm · M12: 20–100 mm |
| Length Measurement | Under head (flat bearing surface to tip; head height not included) |
| Finish | Natural stainless steel (unplated) |
| Torx Bit Sizes | M3→T8, M4→T10, M5→T15, M6→T20, M8→T25, M10→T30, M12→T40 |
| Available Quantities | See variant options (1, 5, 10, 50 pcs) |
Length is measured from the underside of the button head (the flat bearing surface) to the tip — the head height is not included. For example, an M6×20mm screw has exactly 20 mm of threaded shank below the head. All lengths listed follow this standard.
Yes — all sizes from M3 to M12, including longer lengths up to 120 mm, are fully threaded from just under the head to the tip. This provides maximum thread engagement in blind holes and through-hole applications.
Approximate matching: M3→T8, M4→T10, M5→T15, M6→T20, M8→T25, M10→T30, M12→T40. Always use a quality Torx bit that fits snugly in the recess to avoid stripping. Do not substitute a Phillips or Pozidriv bit.
A2 (304) stainless is highly resistant to moisture, rain, and humidity — suitable for most outdoor applications including garden furniture, railings, and general coastal DIY. For direct saltwater immersion or heavy marine exposure, A4 (316) stainless is recommended. For typical outdoor and coastal use, A2 performs well for years without rusting.
These are machine screws — they require a matching metric nut (M3–M12) or a pre-tapped hole of the same thread size. They are not self-tapping. For best corrosion resistance, pair them with A2 stainless steel nuts and washers.
The standard Torx variant has a smooth button head that sits flat against the surface. "Torx With Pillars" features a raised collar (pillar) around the base of the head, which creates a small standoff gap between the head and the mating surface. This is useful for applications requiring clearance, decorative finishes, or specific clamping requirements. Select your preferred type from the "Types" dropdown above.
No — Phillips and Pozidriv bits will not properly engage a Torx recess and will slip, potentially damaging the screw head and the surrounding material. Always use the correct Torx (star) driver bit for the diameter you are installing.
A2 stainless is generally non-magnetic in its annealed state. However, cold-forming processes like thread rolling can induce slight magnetism. A light magnetic response is normal and does not affect corrosion resistance or mechanical performance.
