410 SS Hex Head Self‑Drilling Tek Screws – M4.2 M4.8 M5.2 M6.3 for Roofing & Sheeting $1.96 USD

410 SS Hex Head Self‑Drilling Tek Screws – M4.2 M4.8 M5.2 M6.3 for Roofing & Sheeting

Name: 410 SS Hex Head Self‑Drilling Tek Screws – M4.2 M4.8 M5.2 M6.3 for Roofing & Sheeting
Brand: HomeDIYer
SKU: GLFBLLSGB03018x10
Price: 1.96 USD
Availability: InStock

$1.96 USD

Auf Lager

Provided by HomeDIYer

Quantity Discount Promotion

Quantity（pcs）:

Variante

Menge:

Abholung von Illinois momentan nicht möglich

Illinois

Abholung momentan nicht möglich

150 Hastings Drive
Buffalo Grove IL 60089
Vereinigte Staaten

+18479091828

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM

WhatsApp Email

⚡

24-Hour Fast Ship

🚚

Arrives in 3-14 days

🌍

Global Reach

↩️

30-Day Returns

🌱 1 tree planted with every purchase

🔩 Hex Head Self‑Drilling Tek Screws – 410 Stainless for Roofing & Sheeting

Get roofing and steel‑siding jobs done faster with these hex head self‑drilling Tek screws. The hardened drill point bores through sheet metal, steel purlins, and composite panels without a pilot hole, while the external hex head gives you high‑torque driving with a standard socket – no cam‑out, no stripped heads. Manufactured from 410 stainless steel, they deliver superior hardness and good atmospheric corrosion resistance, making them a reliable choice for metal roofing, wall cladding, structural framing, and general‑shop fabrication. The built‑in flange provides a broad bearing surface to resist pull‑through, and the natural silver finish blends cleanly with plain metal and coated sheets alike. Available in the four most requested diameters – M4.2, M4.8, M5.2, and M6.3 – with lengths to match your specific material stack‑up.

⚙️ Key Features – 410 Stainless Hex Head Self‑Drilling Tek Screws

410 stainless steel construction – high strength and hardness with good corrosion resistance for outdoor and interior applications
Self‑drilling tip eliminates the need for a pilot hole – one‑step fastening through steel sheet, purlins, and wood
External hex head accepts standard sockets for high‑torque driving – virtually no cam‑out or rounding
Wide flange provides a washer‑like bearing surface that stops pull‑through in thin panels and distributes clamp load
Available in M4.2, M4.8, M5.2, and M6.3 diameters with multiple lengths for roofing, cladding, and framing work
Natural stainless finish – no plating to wear off, corrosion protection is built into the metal
Ideal for metal roofing, steel siding, curtain wall, trailer decks, HVAC ductwork, and structural steel‑to‑steel connections

📋 Technical Specifications – Hex Head Self‑Drilling Tek Screws

Size	Thread Diameter (ds)	Flange Diameter (s)	Head Height (k)	Typical Lengths (mm)*	Head Style	Drive	Material
M4.2	6.2 mm	8.6 mm	3.8 mm	13, 16, 19, 25, 32, 38, 50	Hex Flange	External Hex (8 mm)	410 Stainless Steel
M4.8	7.8 mm	10.4 mm	4.1 mm	13, 16, 19, 25, 32, 38, 50	Hex Flange	External Hex (8 mm)	410 Stainless Steel
M5.2	7.6 mm	11.9 mm	5.3 mm	16, 19, 25, 32, 38, 50	Hex Flange	External Hex (10 mm)	410 Stainless Steel
M6.3	9.4 mm	12.7 mm	5.6 mm	19, 25, 32, 38, 50, 60	Hex Flange	External Hex (10 mm)	410 Stainless Steel

* Lengths are thread length only (not including head). Dimensional data refers to the 410 stainless steel version. Also available in color zinc-plated carbon steel for certain sizes. Exact hex socket sizes may vary slightly – see product photos for details.

❓ Frequently Asked Questions – Hex Head Tek Screws

🔸 Do I need a pilot hole for these self‑drilling screws?

No. The drill‑point tip will penetrate sheet steel up to approximately 2 mm thick and wood without pre‑drilling. For thicker structural steel, a pilot hole may be recommended, but in standard roofing and cladding applications, they are true one‑step fasteners.

🔸 What socket size do I need for the hex head?

M4.2 and M4.8 typically use an 8 mm (5/16″) socket. M5.2 and M6.3 usually require a 10 mm socket. A magnetic nut driver bit speeds up installation and helps the screw stay on the bit.

🔸 Can these be used for wood‑to‑metal connections?

Yes. The drill tip goes through the metal layer and bites firmly into the wood substrate. They’re widely used for securing metal roofing sheets to timber purlins and for varied mixed‑material connections.

🔸 Is 410 stainless as rust‑resistant as 304?

410 stainless is harder and stronger than 304, but it contains less chromium, so it’s not as corrosion‑resistant in constant salt spray or harsh chemical environments. It is, however, excellent for outdoor metal roofing, siding, and general construction where occasional rain and humidity are the main exposures. For harsh marine or submersion applications, 304 or 316 is preferred.