Longze Cross Recessed Countersunk Head Machine Screws are premium industrial fasteners precision-engineered to meet DIN 965, ISO 7046, and ASME B18.6.3 international standards. Designed specifically for applications requiring a flush surface integration, these screws feature a flat countersunk head with a high-efficiency Phillips drive, ensuring a snag-free finish and seamless aesthetic integration in high-precision assemblies.
Leveraging advanced manufacturing processes, Longze provides these essential fasteners in a wide range of materials, including marine-grade Stainless Steel (SS304/SS316) and high-strength Carbon Steel. From consumer electronics and medical instruments to heavy-duty industrial machinery, our machine screws offer the perfect balance of tensile strength, corrosion resistance, and installation speed for global OEMs and distributors.
Detailed Parameters
| Compliance Standards | DIN 965 / ISO 7046 / ASME B18.6.3 / JIS B1111 | Metric Size Range | M1.6 to M16 |
|---|---|---|---|
| Inch Size Range | #2 to 3/8" (UNC / UNF) | Property Class | Grade 4.8, 8.8 / Stainless A2 to A4 |
| Drive Type | Phillips (Cross Recess) / Pozi / Slotted | Material Options | Carbon Steel, SS304, SS316 |
| Surface Treatment | Zinc Plated, Black Oxide, Nickel Plated, Passivated | Head Angle | 90° (Metric) / 82° (Imperial) |
| Tensile Strength | Up to 800 MPa (Grade 8.8 / SS316) | Application Area | Electronics, Furniture, Marine, Medical |
Key Advantages
Flush Surface Design
The precision countersunk head ensures the fastener sits level with the workpiece, eliminating protrusions for enhanced safety and aesthetics.
High-Speed Assembly
The Phillips cross-recess drive is optimized for automated assembly lines, reducing bit slippage and increasing installation efficiency.
Superior Materials
Available in Marine Grade SS316 and high-tensile Carbon Steel to meet extreme environmental and mechanical load requirements.
Space-Saving Profile
Ideal for compact electronic components where limited clearance makes protruding screw heads impractical.
Professional Finish
Various plating options including Nickel and Black Oxide provide a clean, professional look for visible consumer goods.
Global Compliance
Fully compatible with both Metric and Imperial threading specifications for seamless international supply chain integration.
Product Gallery
Management Platforms
ISO 9001 Quality Control
Certified production ensures consistent head geometry and drive depth across all batches.
Optical Sorting Technology
100% automated inspection for high-volume orders to guarantee zero defects in critical applications.
Thread Integrity Testing
Strict Go/No-Go gauge testing to ensure smooth engagement and prevent cross-threading.
Advanced Surface Coating
Salt spray testing (up to 1000h+) to verify corrosion resistance for marine and food industries.
Export Packaging
Bulk 25kg export cartons with fumigation-free pallets for secure international logistics.
Custom Branding
Flexible small-box branding and labeling services tailored for regional distributors.
Investment Return Comparison
| Material Grade | Durability Lifecycle | Maintenance Cost |
|---|---|---|
| Carbon Steel 4.8 | Standard (Indoor) | Medium |
| Carbon Steel 8.8 | High (Industrial) | Low |
| Stainless SS304 | Very High (Outdoor) | Very Low |
| Stainless SS316 | Maximum (Marine) | Minimal |
| Zinc Plated Steel | Medium (Protective) | Medium |
Frequently Asked Questions
No, these are Machine Screws specifically designed for pre-tapped holes in metal or for use with matching nuts. For timber applications, please refer to our Countersunk Wood Screws range.
Phillips has a standard cross shape, while Pozi includes additional tick marks to provide a better grip and reduce cam-out. While DIN 965 is typically Phillips, Longze can produce Pozi versions on request.
We highly recommend Stainless Steel SS316 (A4), as it offers superior resistance to chlorides and acids compared to SS304 or coated carbon steel.
To prevent galling, avoid over-torquing, use a moderate installation speed, and consider using a compatible anti-seize lubricant during assembly.
We offer Zinc Plating (White/Blue/Yellow) for general use, Nickel Plating for precision tools, Black Oxide for optics, and Passivation for food/marine industries.
Yes, we provide customized fastener manufacturing based on your technical drawings, including specific lengths, thread pitches, and proprietary material grades.
English 
Afrikaans 
Arabic 
Bengali 
Bulgarian 
French 
German 
Hindi 
Indonesian 
Italian 
Japanese 
Korean 
Malay 
Portuguese 
Russian 
Spanish 
Thai 
Turkish 
Urdu 
Vietnamese 
