M3 M4 M5 M6 A2 Stainless Hex Flange Self Tapping Screws – Phillips Drive $5.75 USD

M3 M4 M5 M6 A2 Stainless Hex Flange Self Tapping Screws – Phillips Drive

Name: M3 M4 M5 M6 A2 Stainless Hex Flange Self Tapping Screws – Phillips Drive
Brand: HomeDIYer
SKU: WXBGB02048x4
Price: 5.75 USD
Availability: InStock

$5.75 USD

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🔩 Hex Flange Self‑Tapping Screws – A2 Stainless Steel with Phillips (M3–M6)

Get the best of both worlds: a hex head you can drive with a wrench or socket, and a deep Phillips recess for a screwdriver. These A2 / 304 stainless steel self‑tapping screws feature a built‑in flange that acts like an integrated washer – it spreads the clamp load over a wider area to stop thin sheet metal from crushing or pulling through. The sharp, fully‑threaded shank bores its own tight thread into steel, aluminum, plastic, and wood panels without a pilot hole in most thin materials, saving you time on every connection. Covering the four most‑used metric diameters (M3, M4, M5, M6) and lengths from 6 mm to 40 mm, this series is a problem‑solver for sheet metal enclosures, automotive brackets, outdoor equipment, furniture assembly, and any job where rust‑free strength matters.

⚙️ Key Features – A2 Hex Flange Self‑Tapping Sheet Metal Screws

Double‑drive design: external hex head for high‑torque socket driving, plus a centered Phillips recess for screwdrivers – use whichever tool fits the space
Integrated flange provides a wide bearing surface that prevents the head from sinking into or pulling through thin metal panels
A2 / 304 stainless steel – permanent corrosion resistance for outdoor, humid, and coastal conditions without any coating that can peel
Self‑tapping thread cuts its own matching thread in sheet metal, wood, plastic, and fiberglass – no pre‑tap or pilot hole in most materials up to 0.025″ (0.6 mm)
Available in M3, M4, M5, and M6 diameters with a full range of short to long lengths to match your exact panel thickness
Fully threaded design ensures maximum grip in thin materials and even load distribution
Non‑magnetic and work‑hardening – safe for electronics and keeps tight under vibration

📋 Technical Specifications – A2 Stainless Hex Flange Self‑Tapping Screws

Size	Thread Diameter	Available Lengths (mm)*	Head Style	Drive	Material & Finish
M3	3.0 mm	6, 8, 10, 12, 16, 20	Hex Flange (with Phillips recess)	Hex Socket & Phillips	A2 304 Stainless Steel, Plain
M4	4.0 mm	12, 16, 20, 25, 30	Hex Flange (with Phillips recess)	Hex Socket & Phillips	A2 304 Stainless Steel, Plain
M5	5.0 mm	12, 16, 20, 25, 30, 35, 40	Hex Flange (with Phillips recess)	Hex Socket & Phillips	A2 304 Stainless Steel, Plain
M6	6.0 mm	16, 20, 25, 30, 35, 40	Hex Flange (with Phillips recess)	Hex Socket & Phillips	A2 304 Stainless Steel, Plain

* Lengths are measured from under the flange (thread only). Head height and flange thickness are additional. All screws are fully threaded. Metric coarse thread.

❓ Frequently Asked Questions – Hex Flange Self‑Tapping Screws

🔸 Can I use a regular wrench and a screwdriver on the same screw?

Yes. The hex flange head lets you use a standard socket or open‑end wrench for high torque, and the deep Phillips recess lets you drive with a screwdriver when space is limited or a socket isn’t practical. Choose whichever tool makes your job easier.

🔸 Do I need a pilot hole in thin sheet metal?

These screws are designed to self‑tap into sheet metal up to about 0.025″ (0.6 mm) thick without a pilot hole. For thicker material or hard alloys, a small pilot hole (roughly 80% of the thread diameter) will reduce driving torque and give you the cleanest thread.

🔸 What does the flange do?

The flange acts like a built‑in washer. It widens the bearing surface so the head doesn’t sink into or crush thin metal, plastic, or wood. It also distributes clamp load more evenly than a standard pan head, giving you a tighter, safer joint.

🔸 Will A2 stainless steel rust outdoors?

A2 / 304 stainless is highly corrosion‑resistant. It’s the standard for outdoor, marine, and coastal environments. It won’t develop red rust like carbon steel. For permanent saltwater submersion, you’d step up to 316, but for rain, humidity, and general outdoor use, A2 is perfectly suited.

🔸 How is the screw length measured?

All lengths listed are the thread length only, measured from directly under the flange to the tip. Head height and flange thickness are not included. This makes it easy to match the screw to the exact thickness of the material you’re fastening.