M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer
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M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYerM2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths - HomeDIYer

M2–M8 A4 Stainless Steel Phillips Pan Head Machine Screws – Marine Grade 316, 3–100mm Lengths

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Price:
$5.98 USD
Stock:
In stock (500 units), ready to be shipped

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Description

🌊 Product Overview: M2–M8 Phillips Pan Head Machine Screws – A4 Stainless Steel (316 Marine Grade)

When your project demands the highest level of corrosion resistance – think marine hardware, coastal construction, chemical equipment, or outdoor furniture – these A4 (316) stainless steel Phillips pan head machine screws are the right choice. Made from premium 316 stainless, they offer exceptional resistance to saltwater, chlorides, and industrial chemicals, outperforming standard A2 (304) in harsh environments. The low‑profile pan head distributes clamping force evenly, while the Phillips drive works with standard bits for easy installation. Fully threaded with standard coarse metric pitch, available in diameters M2 through M8, with lengths from 3mm to 100mm (measured under the head). Whether you need tiny M2 screws for electronics or M8 bolts for structural assemblies, this extensive range has you covered.

✨ Why A4 (316) Stainless Steel Pan Head Screws Are the Premium Choice

  • A4 stainless steel (316 / marine grade) – Contains molybdenum for exceptional resistance to saltwater, chlorides, and industrial chemicals. Outperforms A2 (304) in harsh environments.
  • Phillips pan head design – Low‑profile rounded head with a flat bearing surface. Distributes clamping force evenly and gives a clean, professional finish.
  • Wide metric range: M2, M2.5, M3, M4, M5, M6, M8 – Covers everything from tiny electronics to heavy‑duty marine and industrial fastening.
  • Lengths from 3mm to 100mm (under head) – Extensive length options per diameter – see table below for exact availability.
  • Fully threaded, coarse metric pitch – Standard threads run the entire shank length for maximum grip and easy nut engagement.
  • Smooth, burr‑free workmanship – Clean threads and even force distribution. Anti‑corrosion and rust resistance for long service life.
  • Wide application range – Marine hardware, chemical equipment, outdoor furniture, coastal construction, food processing, and general industrial use.

📏 Available Sizes – M2 to M8 (Lengths in mm, measured under head)

Diameter Thread Pitch (mm) Available Lengths (mm)
M2 0.4 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20
M2.5 0.45 3, 4, 5, 6, 8, 10, 12, 14, 16, 20
M3 0.5 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50
M4 0.7 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80, 90, 100
M5 0.8 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
M6 1.0 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, 45, 50, 60, 70, 80, 90, 100
M8 1.25 12, 16, 20, 25, 30, 35, 40, 45, 50, 55, 60, 70, 80, 90, 100

Note: Length is measured from under the head (threaded shank) – pan head not included. All screws are fully threaded. A4 stainless steel (316) provides marine‑grade corrosion resistance.

Specification Details
Product Type Phillips Pan Head Machine Screws (Round head)
Material A4 Stainless Steel (316 / marine grade)
Drive Style Phillips cross‑head (use PH0 for M2–M2.5, PH1 for M3–M4, PH2 for M5–M8)
Head Style Pan head (low‑profile rounded, flat bearing surface)
System of Measurement Metric
Thread Type Fully threaded, coarse pitch
Length Measurement Under head – from flat bearing surface to tip (head not included)
Finish Natural stainless (unplated, bright)

❓ FAQs – A4 Marine Grade Stainless Steel Screws

🔸 What is the difference between A4 (316) and A2 (304) stainless steel?
A4 (316) contains molybdenum, which greatly improves resistance to chlorides – that means saltwater, de-icing salts, and many industrial chemicals. A2 (304) is fine for most indoor and general outdoor use, but A4 is the standard for marine, coastal, and chemical environments. It costs a bit more but lasts much longer in harsh conditions.
🔸 Are these screws fully threaded? How is length measured?
Yes – they are fully threaded from just under the head to the tip. Length is measured from the underside of the head (the flat bearing surface) to the tip, not including the pan head. For example, an M5 x 20mm screw has a 20mm threaded shank.
🔸 Will A4 stainless steel rust in saltwater?
A4 (316) stainless is highly resistant to saltwater corrosion and is the go‑to choice for boat hardware, dock fittings, and submerged applications. While no metal is completely immune to crevice corrosion in stagnant, low‑oxygen conditions, 316 performs excellently for most marine use. Rinse occasionally with fresh water for maximum lifespan.
🔸 What Phillips screwdriver size works for M2 through M8?
M2–M2.5: use PH0 or PH00. M3–M4: use PH1. M5–M6: use PH2. M8: use PH2 or PH3 (PH2 works for most). Using the correct size prevents stripping.
🔸 Can I use these screws with nuts, or are they self‑tapping?
These are standard machine screws – they require a matching metric nut (M2–M8) or a pre‑tapped hole. They are not self‑tapping. For best corrosion resistance, pair them with A4 stainless nuts.
🔸 What lengths are available for each diameter?
Please refer to the size table above for a complete list of available lengths per diameter. We offer an extensive range from 3mm up to 100mm. If you need a specific length not listed, contact us – we may be able to source it.

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