🔩 Product Overview: M3 & M3.5 Phillips Pan Head Machine Screws (A2 Stainless Steel, DIN 7985H)
Whether you’re assembling a 3D printer, repairing a boat, or building custom furniture, having reliable pan head machine screws in the right sizes saves headaches. These M3 and M3.5 Phillips pan head bolts are made from A2 (304) stainless steel – so they won’t rust or leave ugly stains. The round, low-profile pan head sits neatly on surfaces without digging in, and the Phillips drive gives you a solid grip without slipping if you use the right bit. With lengths from 3mm all the way up to 180mm, you can fasten everything from tiny circuit boards to thick wooden panels. Plus, they meet DIN 7985H standards, so you know the dimensions are consistent.
✨ Why These A2 Stainless Phillips Pan Head Screws Belong in Your Shop
-
A2 (304) stainless steel construction – Excellent corrosion resistance for indoor, outdoor, and marine environments. No more rust streaks on your finished projects.
-
Phillips pan head design – The rounded top and flat bearing surface distribute pressure evenly. Great for metal, plastic, and wood applications.
-
Wide length range – 3mm to 180mm – From short screws for electronics standoffs to extra-long bolts for thick assemblies. One product covers almost any DIY need.
-
Two diameters: M3 and M3.5 – M3 is the standard for small appliances, 3D printers, and computer parts. M3.5 is a versatile size often used in electrical boxes, automotive trim, and furniture.
-
DIN 7985H compliant – Manufactured to German industrial standards, so head dimensions and thread geometry are precise and consistent.
-
Grade 2 strength with A2-70 properties – While labeled Grade 2 (common for stainless), these provide tensile strength around 500–700 MPa – more than enough for most mechanical and structural fastening.
-
Made in China, quality assured – Rigorous manufacturing processes ensure clean threads and burr-free heads.
📋 Technical Specifications – M3 & M3.5 Phillips Pan Head Screws (DIN 7985H)
| Specification |
Details |
| Product Type |
Phillips Pan Head Machine Screws / Bolts – DIN 7985H |
| Material |
A2 Stainless Steel (304 / 18-8) |
| Finish |
Natural stainless steel (no plating, bright silver) |
| Drive Style |
Phillips cross-head |
| Head Style |
Pan Head (rounded top, flat bearing surface) |
| System of Measurement |
Metric |
| Thread Sizes (Screw Size) |
M3 and M3.5 |
| Thread Pitch |
M3 x 0.5 (coarse), M3.5 x 0.6 (coarse) |
| Length Range |
3mm to 180mm (measured from under the head to tip) |
| Grade / Standard |
Grade 2 / DIN 7985H (head dimensions per standard) |
| Country of Origin |
China |
❓ FAQs – M3 & M3.5 Phillips Pan Head Screws (A2 Stainless)
🔸 What’s the difference between M3 and M3.5 screws? When would I use each?
M3 (3mm diameter) is extremely common in electronics, 3D printers, RC vehicles, and small appliances. M3.5 (3.5mm diameter) is slightly thicker – often found in electrical terminal blocks, motorcycle parts, some European furniture, and light-duty machinery. If you're replacing an existing screw, measure the diameter with calipers. For new projects, M3 is great for tight spaces; M3.5 gives a bit more thread engagement and strength.
🔸 Are these screws fully threaded or partially threaded?
For lengths up to about 50mm, they are typically fully threaded. For longer lengths (e.g., 80mm+), some may have a partial shank (unthreaded section near the head). Check your specific length – most common DIY lengths (3mm–50mm) are fully threaded, which is ideal for thin materials or through-hole applications.
🔸 Can I use these screws outdoors or in saltwater?
A2 (304) stainless is highly resistant to fresh water, rain, and humidity. For coastal or saltwater environments (like on a boat), it will perform well but may show minor surface staining over years. For constant saltwater immersion, consider 316 stainless. These are perfect for outdoor furniture, grills, garden equipment, and marine hardware above the waterline.
🔸 What Phillips screwdriver size works best for M3 and M3.5?
For M3, use a PH1 bit. For M3.5, a PH1 or sometimes a PH2 (depending on head size – PH1 is usually safest). A good quality #1 Phillips driver gives the best engagement without stripping. Avoid using a worn or undersized bit.
🔸 Do these screws meet DIN 7985H? What does that mean?
Yes – DIN 7985H is a German standard that defines the exact dimensions of Phillips pan head screws: head height, head diameter, and recess depth. “H” stands for “hoher Kopf” (higher head), which gives a slightly taller profile for better drive engagement. This ensures consistent fit and appearance across all screws.
🔸 Are these screws magnetic?
A2 (304) stainless is generally non-magnetic in its annealed state. However, cold forming during manufacturing can make them slightly magnetic (light stick to a magnet). This does not affect corrosion resistance or strength. For most electronics and DIY uses, it's harmless.
