Countersunk Phillips Head Machine Screws - 304 Stainless Steel from China Suppliers & Factory, Custom Sizes Available

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Manufacturing Process
- • Multi Station Cold Heading Technology
- • Intelligent Heat Treatment System
- • Micron-Level Thread Rolling Process
- • Fully Automatic Optical Sorting
- • Environmentally Friendly Surface Treatment
- • Metallographic & Mechanical Laboratory
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Quality Control System
- • Raw Material Source Locking
- • Furnace Number Batch Traceability
- • Third Party Material Certification
- • Process Parameters Transparent
- • Salt Spray Test Real Time Monitoring
- • International Standard Compliance
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Flexible Customization
- • Customizable Head/Slot Shapes
- • Special Materials Application
- • Extra Large/Long Specifications
- • Integrated Assembly Of Components
- • Customizable Surface Colors
- • Personalized Packaging & Labeling
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Technical Service
- • On-Site Failure Analysis
- • Selection Calculation & BOM Optimization
- • Installation Tool Selection Guidance
- • Inventory Management (VMI)
- • Free Sample Making And Testing
- • International Standard Interpretation
Flush Embedded Design Balancing Safety and Aesthetics
The core advantage of the Phillips Countersunk Head Machine Screw lies in its 90° countersunk cone angle. Once installed, the screw head embeds completely into the workpiece surface, delivering an unobtrusive, perfectly flush connection. This not only streamlines the appearance of electronic enclosures, furniture panels, and machine guards but also fundamentally eliminates snagging hazards caused by protruding screw heads—enhancing overall safety in mechanical assembly and architectural hardware.
Superior Corrosion Resistance Engineered for Harsh Environments
We supply A2-70 (304 stainless steel) and A4-80 (316 stainless steel) grades, precisely manufactured to ISO 7046, DIN 965, and GB/T 819 standards. The 316 stainless steel countersunk screws excel in chloride-ion resistance, reliably passing 720+ hours of salt spray testing to endure humid conditions. For budget-sensitive applications, we also offer 4.8 and 8.8 grade carbon steel with electro-galvanizing or hot-dip galvanizing options.
Strong Full-Thread Locking with Complete Global Standard Coverage
Spanning a broad diameter range from M2 to M12 and lengths from 5mm to 120mm, the full-thread design ensures these Phillips Flat Head Machine Screws deliver continuous, stable clamping force to effectively resist vibration loosening. Strictly compliant with GB/T 819.1, ANSI B18.6.3, and other international standards, the extensive dimensional range seamlessly fits assembly lines for electronics, furniture, and machinery.
Application Scenarios





High-Quality Phillips Countersunk Machine Screws Display
Frequently Asked Questions
What are the common standards for Phillips Countersunk Machine Screws?
Our screws are manufactured strictly according to international standards including ISO 7046, DIN 965, GB/T 819, and ANSI B18.6.3 to ensure global compatibility.
Which material should I choose for outdoor or marine applications?
For outdoor or high-moisture environments, we recommend A2-70 (304 Stainless Steel). For marine or chloride-rich environments, A4-80 (316 Stainless Steel) provides the best corrosion resistance.
What is the benefit of a 90-degree countersunk head?
The 90-degree cone allows the screw head to sit flush with the material surface, providing a clean aesthetic and preventing clothes or objects from snagging on the fastener.
Do you offer custom sizes and non-standard specifications?
Yes, we provide flexible customization for head shapes, slot types, extra-long lengths, and special materials beyond the standard M2-M12 range.
How do you ensure the quality of high-strength batches?
We use an intelligent heat treatment system and fully automatic optical sorting to ensure 100% precision. Every batch is traceable by furnace number with third-party material certification available.















