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The VALUE COLLECTION 7-H-37C-300 is a brass hex head cap screw with a 3/8-16 thread and a 3-inch length under head. It follows the Unified National Coarse (UNC) thread standard and is fully machined in the inch measurement system. Brass construction provides natural corrosion resistance and makes this fastener suitable for applications where galvanic compatibility with copper, bronze, or other non-ferrous components is required. The 9/16-inch hex drive accommodates standard hex sockets and wrenches. This screw is used by plumbers, HVAC technicians, electricians, and general maintenance trades wherever a non-magnetic, corrosion-resistant fastener is specified.
This hex head cap screw is suited for residential and light commercial applications involving plumbing fixtures, electrical enclosures, HVAC equipment panels, and general mechanical assemblies. Its brass material makes it a common choice in wet or humid environments, marine-adjacent installations, and anywhere steel fasteners would risk rust or galvanic corrosion with mating brass or copper components. Install in clearance-drilled or tapped through-holes per standard UNC thread engagement practices.
Designed as a standard UNC inch-series hex head cap screw suitable for use in any tapped or through-hole application calling for a 3/8-16 x 3-inch brass fastener.
Verify that the mating tapped hole or nut is also rated for 3/8-16 UNC thread before installation. Apply appropriate thread lubricant or anti-seize if the brass screw will be installed into a dissimilar metal. Do not use power tools at high torque settings, as brass is softer than steel and can be damaged by over-torquing. Follow applicable mechanical or electrical codes for fastener specifications in regulated installations.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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