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The STEWART FASTENER 3724CHSB is a 3/8-inch by 1-1/2-inch hex head bolt manufactured from silicon bronze. Silicon bronze fasteners are chosen for their strong corrosion resistance in wet, marine, and chemically aggressive environments where standard steel hardware would deteriorate quickly. This bolt features a standard hex head profile, making it compatible with common wrenches and socket sets. It is suited for plumbing, HVAC, pool and spa equipment, marine installations, and other trade applications where corrosion resistance and mechanical strength must coexist. Licensed tradespeople and experienced installers select silicon bronze hardware when long service life in harsh conditions is a priority.
This bolt is appropriate for residential and light commercial installations where exposure to moisture, chlorinated water, or salt air is a factor. Typical applications include pool and spa equipment mounting, copper pipe system connections, coastal HVAC installations, and general trade work requiring a non-ferrous fastener. Its 3/8-inch diameter and 1-1/2-inch length make it a common size across a wide range of standard structural and mechanical connections.
Designed as a corrosion-resistant hex head fastener for use in plumbing, pool, marine, and HVAC applications requiring silicon bronze hardware in 3/8-inch by 1-1/2-inch sizing.
Installation is typically performed by licensed plumbers, HVAC technicians, or pool service professionals using standard hand tools or power drivers with appropriate hex sockets. Ensure the mating material is compatible with silicon bronze to avoid unwanted galvanic interaction. Follow applicable codes such as IPC or IFGC for fastener selection in mechanical system applications. Inspect threads and seating surfaces before installation to confirm proper fit and engagement.
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