Stainless Steel Phillips Truss Head Screw ASME B18.6.3T
Stainless steel Phillips truss head screw ASME B18.6.3T is a precision-engineered fastening component designed for applications requiring wide bearing surface, excellent corrosion resistance, and reliable assembly performance. The stainless steel Phillips truss head screw ASME B18.6.3T is widely used in electronics, sheet metal fabrication, HVAC systems, automotive interiors, and industrial equipment where secure fastening and surface protection are required.
With its low-profile truss head and cross recessed drive, the stainless steel Phillips truss head screw ASME B18.6.3T provides improved load distribution, reduced surface damage, and stable torque transmission in both manual and automated assembly systems.

Product Overview
The stainless steel Phillips truss head screw ASME B18.6.3T is designed according to American ASME standards, ensuring dimensional consistency and compatibility with global fastening systems. Its truss head design features a larger bearing surface compared to standard pan head screws, making it ideal for thin sheet materials.
This stainless steel Phillips truss head screw ASME B18.6.3T is especially suitable for applications requiring corrosion resistance and a clean finished appearance. Stainless steel construction ensures long-term durability in humid, outdoor, or chemical environments.
As a widely used industrial fastener, it is an essential component in OEM manufacturing and precision assembly industries.
Product Specifications
| Item | Description |
|---|---|
| Standard | ASME B18.6.3T |
| Product Name | Stainless Steel Phillips Truss Head Screw |
| Material | Stainless Steel (A2 / A4 optional) |
| Head Type | Truss Head |
| Drive Type | Phillips Cross Recessed |
| Thread Type | Unified / Metric (custom available) |
| Size Range | #2–1/4” / M2–M6 |
| Length Range | 4mm–50mm |
| Surface Finish | Plain / Passivated / Polished |
| Corrosion Resistance | High (depending on stainless grade) |
| Thread Direction | Right Hand |
| Packaging | Bulk / box / OEM packaging |
| Customization | Size, material, coating available |
Technical Parameters
| Parameter | Value |
|---|---|
| Tensile Strength | 500–700 MPa (A2 stainless) |
| Yield Strength | 200–450 MPa |
| Hardness | HV 150–250 |
| Density | 7.93 g/cm³ |
| Corrosion Resistance | High (A4 better for marine use) |
| Operating Temperature | -50°C to 400°C |
| Thread Tolerance | 6g / Unified standard |
| Manufacturing Standard | ASME B18.6.3T |
Materials and Manufacturing Process
The stainless steel Phillips truss head screw ASME B18.6.3T is manufactured using precision cold forming and machining processes to ensure dimensional accuracy and consistent mechanical performance.
- Raw material selection: Stainless steel wire (A2 / A4)
- Cold heading: Formation of truss head geometry
- Thread rolling: Precision thread forming for strength
- Heat treatment (if required): Enhances mechanical stability
- Surface finishing: Passivation or polishing for corrosion resistance
- Cleaning: Oil-free and contamination-free treatment
- Inspection: Dimensional and torque testing
- Packaging: Protective export packaging
Each stainless steel Phillips truss head screw ASME B18.6.3T is produced under strict quality control for reliable industrial use.
Applications of the Product
Stainless steel Phillips truss head screws ASME B18.6.3T are widely used in:
- Electronics: Device housings and enclosures
- HVAC systems: Air conditioning and ventilation assemblies
- Sheet metal fabrication: Thin panel fastening systems
- Automotive: Interior and trim components
- Industrial equipment: Protective covers and assemblies
- Construction: Lightweight structural fastening
- Home appliances: Structural assembly components
- Telecommunications: Equipment racks and housings
Their wide head design ensures stable clamping on thin materials.
Why Choose This Product
- Wide truss head for improved load distribution
- Excellent corrosion resistance with stainless steel
- ASME standard ensures global compatibility
- Suitable for thin sheet materials
- Reliable Phillips drive for easy installation
- Clean and aesthetic surface finish
- Compatible with automated assembly systems
- Available in A2 and A4 stainless grades
- OEM customization support available
The stainless steel Phillips truss head screw ASME B18.6.3T provides stable performance in precision and industrial applications.
Why Choose Flybear
Flybear is a professional manufacturer specializing in high-quality stainless steel and industrial fastening solutions.
- Advanced cold heading and threading production lines
- Stainless steel A2 / A4 material expertise
- OEM customization for global industries
- Strict quality inspection and control systems
- Global export experience in fastener manufacturing
- Engineering support for application optimization
Flybear provides reliable fastening solutions for electronics, HVAC, automotive, and industrial sectors.
Quality Inspection and Control
Strict quality control ensures consistent product performance:
- Raw material chemical composition testing
- Tensile and hardness testing
- Dimensional accuracy inspection
- Thread gauge verification
- Head geometry inspection
- Corrosion resistance testing (salt spray)
- Torque performance testing
- Packaging integrity inspection
All production follows ISO quality management standards.
Selection Guide
When selecting stainless steel truss head screws, consider:
- Stainless steel grade (A2 / A4)
- Environmental corrosion level
- Load distribution requirements
- Sheet thickness compatibility
- Size and thread standard
- Installation torque requirements
Proper selection ensures long-term reliability.
FAQ
1. What is a truss head screw used for?
It is used for fastening thin materials with a wide bearing surface.
2. What is ASME B18.6.3T?
It is a US standard for machine screws.
3. Is stainless steel rust-proof?
It is highly corrosion-resistant, especially A4 grade.
4. Can it be used outdoors?
Yes, stainless steel performs well in outdoor environments.
5. Can custom sizes be produced?
Yes, Flybear supports full customization.
We always adhere to the philosophy of quality first and customer first, providing customers with high-quality fastener products and one-stop fastener solutions.
Contact us for quotation, customization, and technical support via Contact Us.




