M3 M3.5 Pozi Button Truss Head Self Tapping Screws – 304 Stainless Steel $6.30 USD

M3 M3.5 Pozi Button Truss Head Self Tapping Screws – 304 Stainless Steel

Name: M3 M3.5 Pozi Button Truss Head Self Tapping Screws – 304 Stainless Steel
Brand: HomeDIYer
SKU: GLFBQLPBRTQJD005953x20
Price: 6.3 USD
Availability: InStock

$6.30 USD

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🔩 Pozi Button Truss Head Self‑Tapping Screws – A2 Stainless Steel (M3 & M3.5)

Designed for precise, low‑profile fastening, these A2 / 304 stainless steel button truss head self‑tapping screws deliver a wide bearing surface that resists pull‑through while maintaining a clean, rounded appearance. The Pozi‑compatible Phillips recess grips your driver firmly, significantly reducing cam‑out compared to a standard Phillips drive – especially helpful when you’re working with machinery, jigs, or camera tripods and brackets where repeatable torque matters. The sharp metric coarse thread cuts its own tight mate into sheet metal, aluminum, plastics, and wood composites without a pilot hole in most thin materials. Solid 304 stainless steel construction ensures permanent rust protection in humid, outdoor, and mild chemical environments, with no coating to wear off. GooBetter Fastener supplies the two most‑requested small diameters, M3 and M3.5, with fully‑threaded lengths from 6 mm to 20 mm, so you can match the screw exactly to your assembly thickness.

⚙️ Key Features – Pozi Button Truss Head Self‑Tapping Screws

A2 / 304 stainless steel – permanent corrosion resistance without plating; ideal for indoor, outdoor, and damp environments
Button truss head with wide bearing surface prevents pull‑through and gives a neat, low‑profile finish
Pozi‑compatible drive recess for a secure, positive engagement that minimizes cam‑out – even in repetitive assembly
Self‑tapping metric coarse thread cuts into sheet metal, plastic, wood, and aluminum without pre‑tapping
Available in two exact diameter sizes: M3 (3.0 mm) and M3.5 (3.5 mm) – perfect for machinery, optical equipment, and precision brackets
Fully threaded design ensures maximum grip in thin materials and even load distribution
Ideal for machine tools, camera tripods, shooting brackets, electronic enclosures, and general mechanical assembly

📋 Technical Specifications – M3 & M3.5 Button Truss Screws

Size	Thread Diameter	Thread Lengths (mm)*	Head Style	Drive	Material
M3	3.0 mm	6, 8, 10, 12, 16, 20	Button Truss Head	Phillips / Pozi	A2 304 Stainless Steel
M3.5	3.5 mm	6, 8, 10, 12, 16, 20	Button Truss Head	Phillips / Pozi	A2 304 Stainless Steel

* Lengths are thread length only (head height is not included). Exact length options vary per size – choose from the listing drop‑down. Dimensional tolerances follow the GB standard.

❓ Frequently Asked Questions – Pozi Truss Self‑Tapping Screws

🔸 Will a standard Phillips screwdriver work with these Pozi screws?

Yes. A standard Phillips bit fits and will drive these screws, but for maximum grip and to fully experience the reduced cam‑out, a proper Pozi bit (usually marked PZ1 or PZ2) is recommended. The recess is compatible with both.

🔸 Do I need a pilot hole before using these self‑tapping screws?

In thin sheet metal (up to about 1.2 mm), soft plastics, and wood, you can drive them directly. For thicker steel, hard materials, or when using the screw as a machine screw, drill a hole roughly 80% of the thread diameter for the cleanest thread.

🔸 Can I use these for camera tripods or optical brackets?

Absolutely. The M3 and M3.5 sizes are standard for camera equipment, quick‑release plates, and optical mounts. The 304 stainless steel resists rust from skin contact and outdoor humidity, making it a reliable choice for field gear.

🔸 How does the length measurement work for these screws?

Length is the thread length only, measured from directly under the button truss head to the tip. The head height is not included, so you can accurately match the thread length to your material thickness.