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The VALUE COLLECTION MP30604-X is a 1/2-13 x 3 inch hex head cap screw machined from Grade 316 stainless steel. It follows Unified National Coarse (UNC) thread standards and is measured under the head at 3 inches. The 3/4 inch hex drive accepts standard hex sockets and open-end wrenches. Grade 316 stainless steel provides elevated corrosion resistance compared to Grade 304, making this fastener well suited for wet, chemical, or marine service environments. Plumbers, HVAC installers, and industrial maintenance technicians reach for 316 SS hardware when carbon steel or lower-grade stainless would corrode prematurely.
This cap screw is used in applications where fastener corrosion is a primary concern: pipe flange connections, pump and motor mounts, condenser and chiller frame assemblies, pool equipment enclosures, and coastal or chemical-plant installations. The 1/2-13 UNC thread is one of the most common heavy fastener sizes in mechanical and process piping work, fitting standard 1/2 inch tapped holes found on flanges, equipment bases, and structural brackets. Sold individually, with a minimum order quantity of 10 pieces.
Designed as a standard 1/2-13 UNC hex head cap screw for use in any application requiring a 3 inch length under head in Grade 316 stainless steel.
Installation is performed by licensed tradespeople or qualified maintenance personnel using standard hand or power tools. Always verify thread engagement and hole condition before driving the fastener. Do not mix stainless steel fasteners with dissimilar metals in submerged or highly conductive environments without evaluating galvanic corrosion risk. Follow applicable mechanical and piping codes, including ASME and IFGC requirements, when fastening pressure-boundary or structural components.
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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