Bronze Phillips Head Screws
Comprehensive Overview of Bronze Phillips Head Screws
We are a leading manufacturer and global supplier of Bronze Phillips Head Screws, engineered for reliable fastening in corrosive and demanding environments. Our Phillips head screws are manufactured from premium bronze alloys including C65500 High Silicon Bronze for exceptional marine corrosion resistance, C63000 Aluminum Nickel Bronze for high-strength applications, and C93200 Bearing Bronze for excellent machinability and general-purpose use. The Phillips drive design offers superior centering and reduced cam-out compared to slotted drives, making these screws ideal for production environments and applications requiring consistent torque application. With our advanced cold-heading and thread-rolling capabilities, we deliver Phillips head screws that combine traditional bronze reliability with modern driving efficiency.
Bronze Phillips Head Screws – Superior Drive Performance
Bronze Phillips Head Screws feature a cross-shaped recessed drive that provides excellent self-centering action and improved torque transmission compared to traditional slotted drives. The Phillips design prevents the driver from slipping out during installation, reducing damage to work surfaces and improving assembly efficiency. Combined with bronze’s inherent corrosion resistance and non-sparking properties, these screws deliver exceptional performance in marine, industrial, and architectural applications.
Applications of Bronze Phillips Head Screws
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Marine Construction: Boat building, deck fastening, and marine hardware installation
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Industrial Equipment: Machinery assembly, panel mounting, and equipment maintenance
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Architectural Metalwork: Decorative fixtures, handrails, and architectural elements
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Electrical Enclosures: Panel covers and equipment housings requiring corrosion resistance
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Chemical Processing: Equipment assembly in corrosive chemical environments
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Food Processing: Sanitary equipment where non-toxic, corrosion-resistant fasteners are essential
Bronze Alloy Specifications for Phillips Head Screws
| Bronze Alloy | UNS Designation | Key Properties | Typical Applications |
|---|---|---|---|
| C65500 Silicon Bronze | C65500 | Excellent corrosion resistance, good strength, non-sparking | Marine applications, coastal structures, chemical plants |
| C63000 Aluminum Nickel Bronze | C63000 | Very high strength, excellent wear resistance | Heavy machinery, high-stress structural applications |
| C93200 Bearing Bronze | C93200 | Excellent machinability, good bearing properties | General purpose, low-stress applications, bushings |
Bronze Phillips Screw Technical Specifications
| Parameter | C65500 (Silicon Bronze) | C63000 (Aluminum Nickel Bronze) | C93200 (Bearing Bronze) |
|---|---|---|---|
| Tensile Strength (MPa) | 448 – 552 | 655 – 895 | 240 – 380 |
| Yield Strength (MPa) | 207 (Min) | 275 – 620 | 125 – 210 |
| Shear Strength (MPa) | 275 – 345 | 380 – 520 | 180 – 240 |
| Drive Types | Phillips, Phillips #0-4 | Phillips, Phillips #1-4 | Phillips, Phillips #0-3 |
| Corrosion Resistance | Excellent | Excellent | Good |
Standard Sizes: #2 to 3/8″ diameter, M2 to M10. Lengths from 1/4″ to 4″ (6mm to 100mm).
Thread Types: Machine Screw Threads, Wood Screw Threads, Self-Tapping Threads
Head Styles: Flat Head, Oval Head, Round Head, Pan Head, Truss Head
Standards: ISO 7045, ISO 7046, ASME B18.6.3, DIN 7985, DIN 965
Design Features & Benefits
Phillips Drive Advantages
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Self-Centering Action: Automatic centering of driver for faster installation
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Reduced Cam-Out: Designed to disengage at high torque to prevent damage
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Improved Torque Transfer: Better torque transmission than slotted drives
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Production Efficiency: Faster assembly in manufacturing environments
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Driver Stability: Secure driver engagement during installation
Performance Characteristics
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Corrosion Resistance: Excellent performance in saltwater and chemical environments
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Non-Sparking Safety: Essential for hazardous locations and explosive atmospheres
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High Strength: Suitable for structural and load-bearing applications
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Non-Magnetic Properties: Ideal for electronic and electrical applications
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Excellent Fatigue Resistance: Withstands vibration and dynamic loading
Manufacturing Processes & Quality Control
Our Bronze Phillips Head Screws are manufactured through a precision-controlled process:
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Wire Drawing: High-quality bronze wire drawn to precise diameters
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Cold Heading: Multi-station forming to create screw heads and shanks
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Phillips Drive Stamping: Precision stamping of Phillips recess using hardened tooling
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Thread Rolling: Precision thread formation using flat-die rolling
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Heat Treatment: Stress relieving for dimensional stability (if required)
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Deburring & Finishing: Automated tumbling for smooth edges
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Surface Treatment: Optional plating or passivation
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Quality Inspection: 100% dimensional verification and sample testing
Quality Assurance Tests:
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Drive Recess Inspection: Depth, geometry, and cleanliness of Phillips recess
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Thread Gauging: Go/No-Go thread acceptance testing
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Head Dimension Verification: Diameter, height, and bearing surface flatness
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Torque Testing: Drive strength and cam-out torque verification
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Material Certification: Mill Test Certificates for full traceability
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Salt Spray Testing: Corrosion resistance validation per ASTM B117
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Drive Bit Compatibility: Testing with standard Phillips drivers
Technical Data & Performance Specifications
Phillips Drive Size Specifications
| Screw Size | Phillips Size | Point Dimension | Driver Size |
|---|---|---|---|
| #4 – #6 | #1 | 2.3 – 2.6mm | PH1 |
| #6 – #10 | #2 | 3.5 – 3.8mm | PH2 |
| 1/4″ – 5/16″ | #3 | 4.7 – 5.0mm | PH3 |
| 3/8″ – 1/2″ | #4 | 6.2 – 6.5mm | PH4 |
Head Style Specifications
| Head Style | Description | Applications | Standards |
|---|---|---|---|
| Flat Head | Countersunk for flush mounting | Panels, decorative surfaces | ISO 7046, DIN 965 |
| Round Head | Domed head for clearance | Electrical, general purpose | ISO 7045, DIN 7985 |
| Pan Head | Low-profile dome with flat bearing | Machinery, equipment assembly | ASME B18.6.3 |
| Oval Head | Decorative countersunk | Architectural, furniture | ISO 7047 |
| Truss Head | Extra-wide low-profile | Sheet metal, plastics | ASME B18.6.3 |
Installation Guidelines & Technical Data
Recommended Driving Torques
| Screw Size | C65500 (in-lb) | C63000 (in-lb) | C93200 (in-lb) |
|---|---|---|---|
| #6 | 12 – 15 | 16 – 20 | 8 – 10 |
| #8 | 20 – 25 | 28 – 35 | 14 – 17 |
| #10 | 35 – 45 | 48 – 60 | 24 – 30 |
| 1/4″ | 80 – 100 | 110 – 140 | 55 – 70 |
Phillips Drive Performance Data
| Drive Size | Maximum Torque (in-lb) | Cam-out Torque (in-lb) | Driver Engagement (%) |
|---|---|---|---|
| PH1 | 18 – 22 | 20 – 25 | 85 – 90 |
| PH2 | 45 – 55 | 50 – 60 | 85 – 90 |
| PH3 | 100 – 120 | 110 – 130 | 80 – 85 |
| PH4 | 180 – 220 | 200 – 240 | 80 – 85 |
Frequently Asked Questions (FAQ)
Q1: What are the advantages of Phillips drive over slotted drive?
Phillips drive offers superior self-centering, reduced driver slippage, better torque transfer, and faster installation times. The design also provides consistent cam-out to prevent overtightening and damage to materials.
Q2: Can bronze Phillips screws be used with power drivers?
Yes, bronze Phillips screws are excellent for power driving applications. The Phillips design was originally developed for automated assembly, and our screws are manufactured to maintain drive integrity under power driving conditions.
Q3: What is the difference between Phillips and Pozidriv drives?
While similar in appearance, Pozidriv has additional ribs between the main cross for higher torque capacity and reduced cam-out. Phillips is more universally recognized, while Pozidriv provides better performance in high-torque applications.
Q4: Do you offer different point styles for bronze Phillips screws?
Yes, we manufacture various point styles including:
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Type 17 (Auger Point): For wood applications
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Self-Drilling Points: For metal applications
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Sharp Points: General purpose
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Blunt Points: Machine screw applications
Q5: How does the corrosion resistance compare to stainless steel?
Bronze Phillips screws, particularly C65500 Silicon Bronze, offer superior corrosion resistance to 304 stainless steel in marine environments and comparable resistance to 316 stainless in many applications, while also providing non-sparking properties that stainless steel cannot match.
Why Choose Our Bronze Phillips Head Screws?
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Precision Drive Manufacturing: Consistent Phillips recess geometry for reliable driver engagement
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Material Expertise: Optimal bronze alloy selection for specific environmental conditions
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Comprehensive Range: Multiple head styles, point types, and thread configurations
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Quality Assurance: Rigorous inspection of drive features and thread quality
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Technical Support: Application engineering for optimal screw selection
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Custom Capabilities: Special sizes, lengths, and configurations available
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Global Standards Compliance: Manufacturing to international quality specifications
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Competitive Pricing: Cost-effective production without quality compromise
Call to Action – Contact Us Today
Enhance your assembly efficiency with our reliable bronze Phillips head screws. Contact us for quotations or technical assistance.
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Request a Quote: Email your specifications to sales@jambrass.com for prompt quotation
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Call Directly: +91-22-43449300 / +91-22-43449323 (Monday-Saturday, 9:00 AM – 6:00 PM IST)
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Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, India
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Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat – 361004
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Samples Available: Contact us for evaluation samples
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Technical Consultation: Our engineers are available for application support
We look forward to providing you with the highest quality bronze Phillips head screws for your production and maintenance requirements.
