#6 #7 #8 #10 #12 #14 Countersunk Head Self Drilling Tek Screws – 410 Stainless Steel

🔩 Countersunk Head Self‑Drilling Tek Screws – 410 Stainless Steel (#6, #7, #8, #10, #12, #14)

Drill, tap, and fasten in one clean motion with these Phillips countersunk self‑drilling Tek screws. The hardened 410 stainless steel tip punches through steel up to 6 mm thick without a pilot hole, while the 90° flat head seats flush — giving metal roofing, frames, and panels a smooth, professional look. Because the corrosion resistance is built into the martensitic stainless body, you can count on reliable outdoor and industrial performance without a coating that chips or peels. Covering the full range from #6 up to #14 and lengths from 13 mm to 75 mm, this series puts the right fastener in your hand for light‑gauge ductwork, heavy trailers, and everything in between.

⚙️ Key Features – 410 Countersunk Self‑Drilling Tek Screws

• 410 martensitic stainless steel – high strength and hardness with good resistance to fresh water, steam, and mild alkalis
• Self‑drilling tip eliminates the need for a pilot hole – one‑step fastening for metal sheets, steel frames, and roofing
• Countersunk 90° flat head sits flush for a clean, snag‑free finish
• Phillips drive recess provides a secure, cam‑out‑resistant grip with standard bits
• Available in six exact diameters: #6 (3.5 mm), #7 (3.9 mm), #8 (4.2 mm), #10 (4.8 mm), #12 (5.5 mm), #14 (6.3 mm)
• Each size supports a defined angle‑iron thickness range – no guessing, just strong, predictable joints
• DIN 7504‑P compliant – consistent quality and thread geometry across the batch
• Ideal for metal roofing, steel stud framing, trailer decks, HVAC ducting, and general sheet‑metal assemblies

📋 Technical Specifications – DIN 7504‑P Countersunk Self‑Drilling Screws

* Lengths are overall length (including head). Exact availability varies per size; please choose from the listing drop‑down. DIN 7504‑P compliant.

❓ Frequently Asked Questions – 410 Countersunk Self‑Drilling Screws