Bronze Bolts

Overview: Bronze Bolts, Bronze Hex Bolts, Phosphor Bronze Bolts, Silicon Bronze Bolts, Bronze Set Screws are common Bronze Fasteners supplied by Conex Metals at their state-of-the-art manufacturing plant at Jamnagar, India. Bronze Bolts are are highly durable and corrosion-resistant fasteners widely used in marine, electrical, and industrial applications. These bolts offer excellent strength, conductivity, and resistance to harsh environments, making them ideal for various engineering and structural uses. Bronze Bolts are typically manufactured using different Bronze alloys such as Phosphor Bronze, Silicon Bronze, and Aluminum Bronze, each catering to specific application requirements. We offer Metric Bronze Bolts as well as Inch-imperial threaded (UNC, UNF, BSW) Bronze bolts. Available in various thread sizes and standards such as ISO, ASTM, DIN, and BS, Bronze Bolts provide long-lasting performance with excellent mechanical properties. The versatility of Bronze Bolts, Bronze Fasteners, Bronze Screws, Bronze Nuts extends to electrical grounding systems, plumbing fixtures, and decorative applications, ensuring reliable and secure fastening solutions 

Bronze Material Grades Bronze Bolts, Bronze Threaded Bolts are made from various grades, including:

• Phosphor Bronze (C51000, C51900, C52100) – High wear resistance, excellent spring properties, and anti-corrosion features.
• Silicon Bronze (C65100, C65500) – Known for superior corrosion resistance and high strength.
• Aluminum Bronze (C95400, C95500, C95900) – Provides high mechanical properties and excellent resistance to saltwater corrosion.
• Brass (C26000, C28000, C36000) – Offers good machinability and moderate corrosion resistance.

Manufacturing Processes of Bronze Bolts Bronze Bolts undergo several stages in their manufacturing process to ensure precision, durability, and strength:

• Raw Material Selection – High-quality Bronze alloys are chosen based on the application requirements.
• Casting or Forging – The Bronze is either cast into molds or forged into desired shapes to enhance strength.
• Cold forging of Bronze bolts: This is the best method to produce Bronze Bolts, Bronze Hex Bolts, Phosphor Bronze Bolts, Silicon Bronze Bolts, Bronze Set Screws- Bronze Fasteners. our Cold forged Bronze Bolts are accepted worldwide.
• Machining – Threads, heads, and other features are precisely cut using CNC machines.
• Heat Treatment – Enhances mechanical properties like hardness and tensile strength.
• Surface Finishing – Processes such as polishing, plating, and coating are applied for improved durability and corrosion resistance.

Quality Inspection – Each bolt undergoes rigorous testing to meet international standards.

Phosphor Bronze Bolts:   

Phosphor Bronze Bolts are made from an alloy containing tin and phosphorus, giving them excellent wear resistance and strength. These bolts are widely used in marine environments, electrical applications, and heavy machinery.

• Thread Sizes: M4 to M30 (Metric), ¼” to 1 ¼” (Imperial)
• Lengths: 10mm to 200mm (Metric), ½” to 6” (Imperial)
• Standards: ISO 3506, ASTM B139, DIN 933, BS 2873
• Applications: Marine construction, pump components, electrical switchgear
• Finish Options: Natural, Electroplated, Nickel-plated
• Tolerances: ISO 4759-1, DIN 267

Silicon Bronze Bolts

Silicon Bronze Bolts are highly corrosion-resistant and provide superior strength, making them suitable for marine, shipbuilding, and outdoor applications.

• Thread Sizes: M5 to M36 (Metric), 3/16” to 1 ½” (Imperial)
• Lengths: 12mm to 250mm (Metric), ¾” to 8” (Imperial)
• Standards: ASTM B98, DIN 931, ISO 4017, BS 2873
• Applications: Boat building, high-humidity environments, chemical processing
• Finish Options: Plain, Tinned, Polished
• Tolerances: ASTM F468, ISO 4759

Hex Set Screws of Bronze

Bronze Hex Set Screws provide a reliable fastening solution for high-torque applications. These screws are commonly used in structural engineering and mechanical assemblies.

• Thread Sizes: M6 to M42 (Metric), ¼” to 1 ¾” (Imperial)
• Lengths: 15mm to 300mm (Metric), 1” to 10” (Imperial)
• Standards: ISO 4014, ASTM B150, DIN 931, BS 4183
• Applications: Structural connections, electrical grounding, heavy-duty machinery, ground clamps, Bronze Pipe clamps, Bronze Earth rod clamps, Bronze Ground rod clamps
• Finish Options: Uncoated, Anti-galling, Zinc-plated
• Tolerances: ISO 4759-3, DIN 267

Bronze Square Head Bolts

Bronze Square Head Bolts made from Bronze provide a secure and strong fastening option for heavy-duty and vintage-style applications.

• Thread Sizes: M8 to M36 (Metric), ⅜” to 2” (Imperial)
• Lengths: 20mm to 200mm (Metric), 1” to 8” (Imperial)
• Standards: ASTM F467, ISO 8765, DIN 478, BS 57
• Applications: Architectural restoration, railroad tracks, industrial equipment
• Finish Options: Polished, Tinned, Nickel-plated
• Tolerances: ISO 965, ASTM F468

Hex Head Bronze Bolts

Bronze Hex Head Bolts are known for their excellent electrical conductivity and corrosion resistance, making them suitable for use in electrical and plumbing applications.

• Thread Sizes: M3 to M30 (Metric), ⅛” to 1 ¼” (Imperial)
• Lengths: 10mm to 150mm (Metric), ½” to 6” (Imperial)
• Standards: ISO 4016, ASTM B16, DIN 933, BS 2873
• Applications: Electrical terminals, plumbing fixtures, decorative fasteners, Transformer spade terminals, Bronze Spade Terminals, Hotline clamps, Vise Connectors
• Finish Options: Uncoated, Chrome-plated, Bronze-polished
• Tolerances: DIN 267, ISO 4759-1

Marine Bronze Bolts

Marine Bronze Bolts could be used for ships and marine usage.

• Thread Sizes: M3 to M30 (Metric), ⅛” to 1 ¼” (Imperial)
• Lengths: 10mm to 150mm (Metric), ½” to 6” (Imperial)

Bronze Fasteners

Bronze Fasteners  are Metric threaded, full threaded fittings.

• Thread Sizes: M3 to M30 (Metric), ⅛” to 1 ¼” (Imperial)
• Lengths: 10mm to 150mm (Metric), ½” to 6” (Imperial)
• Applications: Electrical Connectors, Switchgear terminals, Transformer spade terminals, Bronze Spade Terminals, Hotline clamps, Vise Connectors

Applications of Bronze Bolts, Bronze Fasteners, Bronze Cold forged Bolts etc.

• Marine and shipbuilding – Corrosion-resistant fastening for boats, docks, and ship components
• Electrical and power distribution – Used in grounding applications and high-voltage systems
• Heavy machinery – Ideal for industrial equipment requiring strong and durable fasteners
• Architectural restoration – Used in antique fixtures, bridges, and heritage structures
• Chemical processing plants – Suitable for environments exposed to chemicals and moisture

Finishing Options

• Plain (Natural Finish) – Retains the original Bronze color and texture
• Nickel Plating – Provides additional corrosion resistance
• Tin Plating – Suitable for electrical applications
• Polished – Enhances aesthetics and resistance to oxidation
• Zinc Plating – Provides extra protection against rust and moisture

Tolerances in Bronze Bolts

• ISO 4759 – General fastener tolerances
• DIN 267 – Dimensional and material tolerances
• ASTM F468 – Chemical and mechanical property tolerances
• BS 2873 – British standards for Bronze fasteners

Frequently Asked Questions

Q: Why choose Bronze Bolts over Stainless steel bolts? A: Bronze Bolts provide superior corrosion resistance in marine environments and high electrical conductivity, making them ideal for electrical applications.

Q: What is the difference between Silicon Bronze and Phosphor Bronze Bolts? A: Silicon Bronze offers better corrosion resistance and strength, while Phosphor Bronze provides excellent wear resistance and spring-like properties.

Q: Are Bronze Bolts suitable for saltwater applications? A: Yes, Bronze Bolts, especially Silicon and Aluminum Bronze, are highly resistant to saltwater corrosion, making them ideal for marine use.

Q: Do Bronze Bolts require special tools for installation? A: Standard wrenches and torque tools are sufficient for most Bronze Bolts, but certain applications may require anti-seizing compounds to prevent galling.

Q: Can Bronze Bolts be used in high-temperature environments? A: Yes, Bronze Bolts retain their mechanical strength and corrosion resistance in moderate to high-temperature conditions.

For high-quality Bronze Bolts, Bronze hex Bolts, Silicon bronze Bolts, Phosphor Bronze Bolts, Bronze Fasteners  and custom fastener solutions, contact us today!