M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel
M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel

M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel

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Abholung von Illinois momentan nicht möglich

M3–M8 Countersunk Flat Head Self Tapping Screws – A2 Stainless Steel

M3 / 6 mm / 10 Pcs

Illinois

Abholung momentan nicht möglich

150 Hastings Drive
Buffalo Grove IL 60089
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🔩 Countersunk Flat Head Self‑Tapping Screws – A2 Stainless (M3–M8)

Get a clean, flush finish with these A2 / 304 stainless steel countersunk self‑tapping screws. The 90° flat head sits perfectly in a standard countersunk hole, leaving nothing to snag on wiring, clothing, or moving parts – ideal for sheet metal panels, electronic enclosures, automotive trim, and wood-to-metal connections. A sharp, full‑form coarse thread cuts its own path into steel, aluminum, plastic, fiberglass, and wood, eliminating the need for separate taps or nuts. Manufactured from genuine 304 stainless steel, they offer permanent corrosion resistance for indoor, outdoor, and damp environments without a surface coating that can chip. With seven metric diameters (M3 to M8) and an extensive length range from 6 mm up to 150 mm (including head), you can tackle everything from thin‑gauge electronics to structural brackets.

⚙️ Key Features – A2 Countersunk Self‑Tapping Screws

  • A2 / 304 stainless steel – resists red rust and corrosion in wet, humid, and outdoor environments without a coating
  • Countersunk flat head (90°) provides a flush, snag‑free installation that blends into the surface
  • Self‑tapping coarse thread cuts its own mate in sheet metal, wood, plastic, and composites – no pre‑tap needed
  • Phillips drive recess offers firm, cam‑out‑resistant engagement with standard bits
  • Covers M3, M3.5, M4, M4.2, M5, M6, and M8 diameters – a size for every light‑ to medium‑duty job
  • Lengths from 6 mm to 150 mm (including head) – match your exact material thickness from thin sheets to thick sections
  • Conforms to DIN 7982 / ISO 7050 dimensional standards for consistent fit and repeatable assembly

📋 Technical Specifications – Flat Head Self‑Tapping Screws

Size Thread Diameter Typical Lengths (mm)* Head Style Drive Material
M3 3.0 mm 6, 8, 10, 12, 14, 16, 20, 25 Countersunk Flat Phillips A2 304 Stainless
M3.5 3.5 mm 8, 10, 12, 14, 16, 20, 25, 30 Countersunk Flat Phillips A2 304 Stainless
M4 4.0 mm 8, 10, 12, 14, 16, 20, 25, 30, 40 Countersunk Flat Phillips A2 304 Stainless
M4.2 4.2 mm 10, 13, 16, 19, 25, 32, 38, 50 Countersunk Flat Phillips A2 304 Stainless
M5 5.0 mm 12, 14, 16, 20, 25, 30, 40, 50, 60 Countersunk Flat Phillips A2 304 Stainless
M6 6.0 mm 16, 20, 25, 30, 40, 50, 60, 80 Countersunk Flat Phillips A2 304 Stainless
M8 8.0 mm 20, 25, 30, 40, 50, 60, 80, 100, 120, 150 Countersunk Flat Phillips A2 304 Stainless

* Lengths are overall length (including head). Exact length options vary per size – select from the listing variations. All dimensions conform to DIN 7982 / ISO 7050.

❓ Frequently Asked Questions – Countersunk Self‑Tapping Screws

🔸 Do I need to countersink the hole for these flat-head screws?

For a truly flush fit, yes – a countersunk hole matching the 90° head angle is best. In thin sheet metal or soft plastic, the head may pull itself flush without a separate operation. For harder materials, a quick countersink ensures the head sits perfectly flat.

🔸 Are the lengths given including the head?

Yes, all listed lengths are overall length – from the top of the flat head to the tip. This makes it easy to match the screw to your total material thickness without guessing.

🔸 Can I use these in wood and plastic, or only sheet metal?

They work well in all these materials. The sharp self‑tapping thread bites into hardwood, softwood, plastic, fiberglass, and sheet metal. For very hard materials, a pilot hole helps preserve the thread.

🔸 Will 304 stainless hold up outdoors?

Absolutely. 304 (A2) stainless is the standard for outdoor and marine‑above‑waterline fasteners. It won’t red‑rust like carbon steel. For constant saltwater immersion, 316 would be preferable, but for rain, humidity, and general outdoor use, 304 performs beautifully for years.