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304 SS Phillips Pan Head Machine Screws A2-70 Passivated Corrosion Resistant Custom Sizes
Product Details:
| Place of Origin: | China |
| Brand Name: | guanbiao |
| Certification: | ISO9001 |
| Model Number: | M5*20 |
Payment & Shipping Terms:
| Minimum Order Quantity: | 50000 |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Plastic bag + carton + pallet |
| Delivery Time: | 15-20 work days |
| Payment Terms: | T/T |
| Supply Ability: | 5000000 |
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Detail Information |
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| Target Market: | All Over The World | Tensile Strength: | 500-700N/mm² |
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| Advantage: | Good Corrosion Resistance | Thread Diameter: | Standard |
| Thread Type: | Fine | Surface Finishing: | Passivation, Customizable |
| Tolerance: | +-0.1mm | Drive: | Phillips |
| Head Style: | Pan Head, Flat Head, Round Head, Etc. | Specification: | Normal Size Or As Per Your Drawing |
| Head Drive: | Pan Head | ||
Product Description
304 SS Phillips Pan Head Machine Screws A2-70 Passivated Corrosion Resistant Custom Sizes
Premium A2-70 stainless steel Phillips pan head screws. Passivated finish resists rust, salt water & chemicals. M2 to M12 sizes. Custom options. Ideal for marine, food processing & outdoor. DIN 7985 compliant.
Demanding environments require superior corrosion protection. Our **A2 Stainless Steel Phillips Pan Head Machine Screws** deliver exceptional resistance to rust, salt water, chemicals, and atmospheric exposure. Made from A2-70 (304) stainless steel and featuring the standard **Phillips drive** and **DIN 7985 pan head profile**, they provide reliable fastening strength and a clean appearance for **marine, food processing, pharmaceutical, chemical, and outdoor applications**. *Screws only - no washers included.* Custom specifications available.
TECHNICAL SPECIFICATIONS |
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| Material | A2-70 Stainless Steel (304) (ISO 3506) |
| Drive Type | Phillips (PH0, PH1, PH2, PH3) |
| Head Style | Pan Head (DIN 7985 / ISO 7045). |
| Sizes (Diameter x Length): | Fuller Range; M2, M2.5, M3, M4, M5, M6, M8, M10, M12 |
| Surface Finish | Passivated (Standard - essential for corrosion resistance) |
| Thread Type | Machine Screw Threads** (Metric Coarse standard; Metric Fine, UNC, UNF custom) |
| Point Type | Blunt End |
| Customization | Custom lengths, materials, platings, and thread types available |
Primary Uses & Applications:
* Marine hardware & boat fittings.
* Food & beverage processing equipment.
* Pharmaceutical & laboratory equipment.
* Chemical plant fixtures & instrumentation.
* Outdoor enclosures & architectural metalwork.
* HVAC systems in corrosive environments.
* High-humidity appliance manufacturing.
* Potable water systems.
* Any application requiring non-corrosive, hygienic fasteners.
Surface Treatment/Finishes:
* **Passivation (Standard):** Critical chemical process removing free iron particles and enhancing the natural chromium oxide passive layer for maximum corrosion resistance. Slightly matte finish.
* **Electropolishing (Optional):** Creates a smoother, brighter, more reflective surface. Further enhances corrosion resistance, improves cleanability/decontamination (ideal for food/pharma), and reduces friction/galling tendency. Compliant with hygienic standards.
How to Use:
1. **Prevent Galling:** **Highly Recommended!** Apply a **stainless steel specific anti-seize compound** to the threads before installation, especially for stainless-on-stainless connections. This prevents thread cold welding (galling).
2. **Prepare:** Ensure female threads (nut/tapped hole) are clean, compatible, and ideally also stainless steel (A2/A4). Deburr holes.
3. **Insert:** Place screw through clearance hole.
4. **Drive:** Use the **correct size Phillips driver**. Apply **steady, moderate pressure and speed**. Avoid high RPMs which generate heat and increase galling risk.
5. **Tighten:** Tighten until snug and the pan head seats. **Do not over-torque.** Refer to A2 stainless torque specs.
6. **Washer Note:** For load distribution or vibration resistance, use **stainless steel flat washers or Belleville washers** (added separately).
7. **Removal:** Should be straightforward if anti-seize was used. If galling occurs, do not force - risk breaking the head