Bronze Socket Head Cap Screws

Comprehensive Overview of Precision Bronze Socket Head Cap Screws

We are a specialized manufacturer and global supplier of high-strength Bronze Socket Head Cap Screws, engineered for applications demanding precision, corrosion resistance, and high mechanical performance. Our socket screws are manufactured from premium bronze alloys including C63000 Aluminum Nickel Bronze for exceptional strength, C95400 Aluminum Bronze for superior wear and corrosion resistance, and C93200 Bearing Bronze for excellent machinability and bearing properties. These precision fasteners feature a cylindrical head with a hexagonal socket drive, allowing for high torque application in confined spaces. With decades of expertise in precision fastener manufacturing, we deliver socket head cap screws that meet the most demanding specifications for machinery, marine, and chemical processing applications.

Bronze Socket Head Cap Screws – Precision High-Strength Fastening

Bronze Socket Head Cap Screws are precision fasteners designed for applications requiring high clamping force, compact head design, and reliable performance in corrosive environments. The socket drive provides superior torque transmission compared to conventional screw heads, while bronze construction ensures corrosion resistance and non-sparking safety.

Applications of Bronze Socket Head Cap Screws

• Machine Tool Industry: Precision machinery, jigs, fixtures, and tooling applications

• Marine Engineering: Pump assemblies, valve actuators, and deck machinery in saltwater environments

• Chemical Processing: Equipment assembly in corrosive chemical plants and refineries

• Pump and Valve Manufacturing: High-pressure assemblies requiring corrosion resistance

• Food Processing Equipment: Machinery where corrosion resistance and cleanability are essential

• Mining and Explosive Environments: Non-sparking fasteners for hazardous locations

Bronze Alloy Specifications for Socket Head Cap Screws

Bronze Socket Head Cap Screw Technical Specifications

Standard Sizes: M3 to M24, #4 to 1″ diameter. Lengths from 6mm to 200mm+.
Threads: Metric Coarse, Metric Fine, UNC, UNF
Standards: ISO 4762, DIN 912, ASME B18.3
Socket Sizes: Standard hex key drives according to ISO 10664

Design Features & Benefits

Socket Head Design Advantages

• High Torque Capability: Hex socket drive allows for significantly higher torque application compared to external drive fasteners

• Compact Head Design: Low-profile head fits in confined spaces where conventional bolt heads cannot be used

• Clean Appearance: Smooth cylindrical head provides a finished look without protruding drive features

• Axial Alignment: Head design allows for precise alignment in counterbored holes

• Reduced Stripping: Internal drive is less prone to damage during installation and removal

Performance Characteristics

• Corrosion Resistance: Excellent performance in seawater, chemicals, and industrial atmospheres

• Non-Sparking Safety: Essential for explosive environments and hazardous locations

• High Strength-to-Weight Ratio: Strong yet lightweight compared to steel alternatives

• Excellent Wear Resistance: Particularly with aluminum bronze alloys

• Non-Magnetic Properties: Ideal for electrical and sensitive electronic applications

Manufacturing Processes & Quality Control

Our Bronze Socket Head Cap Screws are manufactured through a precision-controlled process:

1. Material Selection: Certified bronze alloy bar stock

2. CNC Machining: Precision turning of screw blanks to exact dimensions

3. Head Machining: Formation of socket drive feature using specialized tooling

4. Thread Rolling: Precision thread formation using flat-die rolling

5. Heat Treatment: Solution treatment and aging for high-strength alloys

6. Deburring & Finishing: Comprehensive edge breaking and surface finishing

7. Quality Inspection: 100% dimensional verification and sample testing

Quality Assurance Tests:

• Dimensional Verification: 100% check of all critical dimensions including head diameter, socket size, and thread geometry

• Thread Gauging: Go/No-Go thread acceptance testing to class 6g/6H tolerance

• Socket Drive Inspection: Verification of socket depth, angle, and drive compatibility

• Proof Load Testing: Sample testing to 2x working load limit

• Hardness Testing: Brinell and Rockwell testing to verify mechanical properties

• Material Certification: Mill Test Certificates for full traceability

• Salt Spray Testing: Corrosion resistance validation per ASTM B117

Technical Data & Performance Specifications

Mechanical Properties by Size

Head Dimensions & Specifications

Frequently Asked Questions (FAQ)

Q1: What are the main advantages of bronze socket head cap screws over steel?
Bronze socket screws offer superior corrosion resistance, non-sparking properties for hazardous environments, non-magnetic characteristics, and excellent resistance to galling and seizing. They maintain their performance in conditions where steel would corrode or pose safety risks.

Q2: Which bronze alloy is strongest for socket head cap screws?
C63000 Aluminum Nickel Bronze provides the highest strength, with tensile strength up to 895 MPa, making it comparable to medium-strength steel fasteners while maintaining excellent corrosion resistance.

Q3: Can you supply matching bronze socket set screws?
Yes, we manufacture complete ranges of bronze socket set screws in the same alloys, including cup point, flat point, cone point, and dog point configurations to complement our socket head cap screws.

Q4: What is the recommended installation torque for bronze socket head cap screws?
Installation torque should be approximately 75-80% of the yield strength of the specific bronze alloy. We provide detailed torque specifications with all shipments, as bronze has different friction characteristics than steel.

Q5: Do you offer different socket drive types?
While standard hex socket drives are most common, we can also manufacture screws with Torx® drives for higher torque applications and reduced risk of cam-out, particularly in high-strength bronze alloys.

Why Choose Our Bronze Socket Head Cap Screws?

• Precision Manufacturing: CNC machining and thread rolling for exact dimensions and superior thread quality

• Material Expertise: Deep knowledge of bronze metallurgy and alloy selection for specific applications

• Quality Assurance: Comprehensive testing and inspection with full documentation

• Technical Support: Engineering assistance for application-specific requirements

• Custom Capabilities: Ability to produce special lengths, diameters, and configurations

• Complete Traceability: Material certifications and manufacturing process documentation

• Global Standards Compliance: Manufacturing to international quality standards

• Competitive Pricing: Cost-effective manufacturing without compromising quality

Call to Action – Contact Us Today

Upgrade your precision assemblies with high-performance bronze socket head cap screws. Contact us for quotations or technical assistance.

• Request a Quote: Email your specifications to sales@jambrass.com for prompt quotation

• Call Directly: +91-22-43449300 / +91-22-43449323 (Monday-Saturday, 9:00 AM – 6:00 PM IST)

• Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, India

• Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat – 361004

• Samples Available: Contact us for evaluation samples

• Technical Consultation: Our engineers are available for application support

We look forward to providing you with the highest quality bronze socket head cap screws for your most demanding applications.