A2 Stainless Steel Torx Pan Head Machine Screws | M1.4 to M10 Six - Lobe Drive - HomeDIYer

A2 Stainless Steel Torx Pan Head Machine Screws | M1.4 to M10 Six-Lobe Drive

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A2 Stainless Steel Torx Pan Head Machine Screws | M1.4 to M10 Six-Lobe Drive

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Size(mm): M1.4*3

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$3.92 USD

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A2 Stainless Steel Torx Pan Head Machine Screws — Cam-Out Resistant, M1.4 to M10, ISO Metric

Phillips bits slip. Hex keys round out. When you’re driving small machine screws into tight assemblies — electronics enclosures, precision instruments, robotics frames, or medical device housings — cam-out isn’t just frustrating, it damages the screw head and the surrounding material. These A2 stainless steel Torx pan head machine screws use a six-lobe T-drive that transfers torque directly into the fastener, giving engineers, makers, and repair technicians the control they need on every drive.

Each order contains A2 stainless steel (304 grade) Torx pan head machine screws in your selected ISO metric size and quantity (1 piece for sampling or 20 pieces per pack). The pan head profile sits above the surface without requiring a countersunk hole. Available in ten metric diameters — M1.4, M1.6, M2, M2.5, M3, M4, M5, M6, M8, and M10 — with lengths ranging from 3mm (≈0.12”) to 100mm (≈3.94”) depending on the diameter selected.

These Torx pan head machine screws are well suited for electronics and PCB assembly where cam-out resistance protects delicate boards and housings; precision mechanical and robotics builds where consistent torque application on small metric machine screws is critical; and maintenance and repair work where a single-piece option lets you source the exact replacement fastener without buying a full box.

🔩 Thread Standard: ISO Metric Coarse (DIN 13) — M1.4 through M10. Compatible with standard ISO metric nuts, threaded inserts, and tapped holes. Not compatible with UNC or UNF inch-standard fasteners. Torx (T-star / six-lobe) driver required — typically T4–T30 depending on screw size.

✅ Key Features of These A2 Stainless Torx Pan Head Machine Screws

⭐Six-Lobe Torx Drive — Cam-Out Resistant — The T-star recess transfers torque more efficiently than Phillips or slotted drives, dramatically reducing cam-out when driving small metric machine screws at higher torque or in confined spaces.
🥊A2 Stainless Steel (304 Grade) — Provides substantially better corrosion resistance than zinc-plated carbon steel, making these stainless Torx screws suitable for outdoor, humid, and mildly corrosive environments without surface treatment.
📐Ten Metric Sizes — M1.4 to M10 — Covers the full range from micro-fasteners used in electronics and optics (M1.4, M1.6) through general mechanical assembly sizes (M4–M6) to structural connections (M8, M10) — all in one listing.
🔴Pan Head Profile — No Countersinking Required — The low dome head sits above the material surface and provides a wide bearing area, making installation faster in applications where a flush finish is not needed.
📦Single-Piece or 20-Pack Options — Order 1 piece to prototype or source a replacement, or 20 pieces for small production runs and workshop stock — flexibility that reduces waste and inventory risk for precision metric fastener sourcing.
⚙️ISO Metric Coarse Thread (DIN 13) — Fully compatible with standard ISO metric nuts, threaded inserts, and tapped holes across M1.4–M10, ensuring reliable fit in globally standardized assemblies without custom tooling.

📐 Technical Specifications — Torx Pan Head Machine Screws (ISO Metric)

Product Type	Torx (Six-Lobe) Pan Head Machine Screw
Drive Type	Torx / T-Star / Six-Lobe — typically T4 to T30 depending on size
Head Style	Pan Head (dome profile, above-surface mount)
Material	A2 Stainless Steel (304 Grade)
Thread Standard	ISO Metric Coarse (DIN 13)
Available Diameters	M1.4, M1.6, M2, M2.5, M3, M4, M5, M6, M8, M10
Available Lengths	3mm (≈0.12”) to 100mm (≈3.94”) — See variant options
Packing Quantity	1 pc (sample) or 20 pcs per pack — See variant options
Tensile Strength	Typically 500–700 MPa (A2-70 per ISO 3506) — Contact us to confirm
Corrosion Resistance	Good — suitable for outdoor and humid environments; not recommended for marine/chloride-heavy use
Magnetic	Generally non-magnetic (austenitic stainless in annealed state)
Country of Origin	Contact us to confirm

⚠️ Driver note: A correctly sized Torx bit is required — using an undersized bit will damage the screw head. Verify the Torx size (T4–T30) against your screw diameter before driving. For marine or saltwater environments, A4 (316) stainless is generally recommended over A2 (304).

❓ Frequently Asked Questions

How do I choose the right length for a Torx pan head machine screw?

A general guideline is to select a length that provides at least one screw diameter of thread engagement in the receiving material, plus the thickness of the part being clamped. For example, fastening a 3mm panel with an M3 screw typically calls for a 6mm or 8mm length. Available lengths in this listing range from 3mm (≈0.12”) to 100mm (≈3.94”) depending on the diameter selected.

What is a Torx (six-lobe) drive and why is it better than Phillips?

Torx, also called six-lobe or T-star drive, uses a six-pointed star-shaped recess that transfers torque more efficiently than a Phillips cross drive. This design significantly reduces cam-out — the tendency of the driver to slip out of the head under load — making it especially useful when driving small screws at higher torque or in tight spaces. A correctly sized Torx bit is required; common sizes for M1.4–M10 screws are typically T4 through T25.

What Torx bit size do I need for these screws?

Torx bit size generally increases with screw diameter. As a general guide: M1.4–M1.6 typically use T4 or T5; M2–M2.5 typically use T6 or T8; M3 typically uses T10; M4 typically uses T15 or T20; M5–M6 typically use T20 or T25; M8–M10 typically use T25 or T30. Always verify the exact bit size against the screw head before driving to avoid head damage.

How strong are A2 stainless steel machine screws?

A2 stainless steel (304 grade) machine screws typically meet property class 70 per ISO 3506, with a tensile strength generally around 500–700 MPa depending on the specific production standard. They are non-magnetic in their annealed state and well suited for general-purpose fastening where corrosion resistance is required. For load-critical applications, contact us to confirm the exact grade.

Can A2 stainless Torx screws be used outdoors or in wet environments?

Yes. A2 stainless steel provides significantly better corrosion resistance than zinc-plated carbon steel and is generally suitable for outdoor, humid, and mildly corrosive environments. For marine or chloride-heavy environments, A4 (316) stainless steel is typically recommended. Contact us if you need A4-grade alternatives.

What thread standard do these metric screws use?

These screws use the ISO metric coarse thread standard (DIN 13). Available sizes are M1.4, M1.6, M2, M2.5, M3, M4, M5, M6, M8, and M10. They are compatible with standard ISO metric nuts, threaded inserts, and tapped holes. These are not compatible with UNC or UNF inch-standard fasteners.

When should I order 1 piece vs. 20 pieces?

The 1-piece option is ideal for prototyping, fit-checking, or sourcing a single replacement fastener before committing to a larger quantity. The 20-piece pack is suited for small production runs, repair kits, or workshop stock where you need a reliable supply of a specific size. Both options ship from our US warehouse.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.