Stewart Fastener 3740CHSB Silicon Bronze Hex Bolt 3/8x2.5

Product Description

The STEWART FASTENER 3740CHSB is a silicon bronze hex head bolt sized at 3/8 inch diameter by 2-1/2 inch length. Silicon bronze fasteners are specified where corrosion resistance is critical — marine environments, pool equipment, coastal HVAC installations, and plumbing applications where contact with water or treated air is constant. Licensed tradespeople select silicon bronze over zinc or steel when long-term fastener integrity matters and galvanic corrosion is a concern. This bolt ships as a standard hex head configuration, compatible with common 9/16-inch wrenches and sockets used in everyday trade work.

This bolt is well suited for mechanical and structural fastening in corrosive service environments. Typical applications include securing pump housings, pool equipment enclosures, HVAC curb mounting hardware, and plumbing fixture connections where moisture exposure is continuous. The hex head drive style allows torque application with standard hand and power tools, making it practical for field installation across HVAC, plumbing, and pool service trades.

Key Features

• Silicon bronze construction for excellent corrosion resistance in wet and coastal environments
• Hex head drive style compatible with standard 9/16-inch sockets and wrenches
• 3/8 inch diameter by 2-1/2 inch length for a wide range of mechanical fastening tasks
• Suitable for pool, marine, HVAC, and plumbing service applications
• Non-magnetic and low galvanic reactivity for use with dissimilar metals

Compatibility

Designed as a standard 3/8 inch silicon bronze hex head fastener suitable for general trade use in corrosive or moisture-exposed installations.

Installation Notes

Installation is performed by licensed HVAC technicians, plumbers, or pool service professionals using standard hand or impact tools. Always de-energize or shut down the system before replacing or installing fasteners on mechanical equipment. Do not overtighten silicon bronze fasteners, as the alloy has lower tensile strength than carbon steel; follow equipment manufacturer torque guidelines. Use appropriate thread lubricant where required to prevent galling on bronze threads.

Technical Specifications

• Material: Silicon Bronze
• Head Style: Hex Head
• Diameter: 3/8 inches
• Length: 2-1/2 inches

Standard Information

• Brand: STEWART FASTENER
• Manufacturer Part Number: 3740CHSB