M3 M4 M5 Pan Head Self Tapping Screws – 201 Stainless Steel $1.35 USD

M3 M4 M5 Pan Head Self Tapping Screws – 201 Stainless Steel

Name: M3 M4 M5 Pan Head Self Tapping Screws – 201 Stainless Steel
Brand: HomeDIYer
SKU: GXL01657x5
Price: 1.35 USD
Availability: InStock

$1.35 USD

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🔩 Pan Head Self Tapping Screws in 201 Stainless Steel (M3–M5)

Built for environments where moisture and mild chemicals are a daily reality, these GooBetter Fastener pan head self tapping screws offer long‑term reliability without the cost of 300‑series stainless. The 201 stainless steel provides solid corrosion resistance in damp, washdown, and outdoor settings — think marine trim, food processing equipment, HVAC ducting, and automotive under‑hood work. A classic Phillips pan head gives a flush, finished appearance and strong drive engagement, while the self‑tapping thread eliminates drilling and tapping steps in sheet metal, plastics, fiberglass, and wood composites. Available in M3, M4, and M5 diameters, this range covers light‑ to medium‑duty fastening where stainless integrity matters.

⚙️ Key Features – 201 Stainless Steel Pan Head Self Tapping Screws

201 stainless steel provides effective corrosion resistance in damp, chemical, and outdoor environments at an economical price point
Self‑tapping thread cuts cleanly into sheet metal, plastic, fiberglass, and wood without a pre‑tapped hole
Phillips pan head design offers a clean, flush profile and reduces driver slip during installation
M3, M4, and M5 diameters cover the most common light‑duty structural and enclosure fastening needs
Consistent thread geometry and heat treatment ensure reliable torque‑to‑failure values batch to batch
Non‑magnetic and slightly work‑hardening for applications where magnetism must be avoided
Versatile across marine maintenance, food equipment assembly, electronic enclosures, and general repair

📋 Technical Specifications

Size	Thread Diameter	Typical Length Range (mm)	Head Style	Drive	Material
M3	3.0 mm	10–40	Pan Head	Phillips	201 Stainless Steel
M4	4.0 mm	12–50	Pan Head	Phillips	201 Stainless Steel
M5	5.0 mm	16–60	Pan Head	Phillips	201 Stainless Steel

* Lengths depend on pack selection. All dimensions conform to DIN/ISO equivalent tolerance standards.

❓ Frequently Asked Questions

What’s the advantage of 201 stainless over regular zinc‑plated steel?

201 stainless offers inherent corrosion resistance through its chromium‑nickel‑manganese composition, rather than relying on a surface coating. That means scratches or thread wear won’t expose bare steel to rust like zinc plating can. It’s a great choice for damp environments, food contact areas, and outdoor projects where budget or magnetism constraints matter.

Can these self tapping screws be used in stainless steel sheet?

They can, but with a caveat. 201 stainless fasteners are slightly harder than 300‑series, so they can tap into thin stainless sheet if the material is under about 1.2 mm. We always recommend a test on a sample piece, and using a lubricant or pilot hole for best results.

Are the screws magnetic?

201 stainless is generally non‑magnetic in the annealed state, but cold work from thread forming can induce slight magnetism. They are substantially less magnetic than standard carbon steel and are safe for most electronics and sensitive installations.

Do I need a special Phillips bit for these?

A standard Phillips #1 (M3), #2 (M4), or #3 (M5) driver bit works perfectly. To prevent cam‑out and preserve the head recess, we recommend using a bit in good condition and applying firm, steady pressure while driving.

Where are these screws manufactured?

They are manufactured in China under strict dimensional and material controls. GooBetter Fastener inspects each batch for thread quality, hardness consistency, and surface finish before packaging.