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The VALUE COLLECTION C50000158 is a partially threaded hex head cap screw manufactured from Grade 8 steel with a bright uncoated finish. Sized at 1-1/2-6 UNC thread by 6 inches under the head, this fastener is built to ASME B18.2.1 standards, making it a reliable choice for structural and mechanical assemblies that demand high tensile strength. Grade 8 steel provides significantly greater hardness and load capacity than lower-grade equivalents, which is why it is commonly specified in demanding industrial, HVAC equipment mounting, and heavy mechanical applications. The uncoated bright finish is appropriate for indoor or protected installations where corrosion resistance is not the primary concern.
This large-format cap screw is suited for bolted connections in commercial and industrial settings, including equipment bases, structural steel assemblies, machinery mounts, and similar heavy-duty fastening tasks. Tradespeople working on rooftop HVAC unit installations, mechanical room equipment anchoring, or structural support fabrication will find this screw appropriate where a high-strength, coarse-thread UNC fastener in this diameter range is required. It is sold and packaged as a single piece.
Designed as an ASME B18.2.1-compliant inch-series hex head cap screw suitable for use in any application requiring a 1-1/2-6 UNC Grade 8 fastener.
Installation should be performed by a qualified mechanic or tradesperson using appropriately sized hex or socket tooling for a 1-1/2-inch nominal diameter fastener. Always verify thread engagement depth and joint design before torquing. Power down or de-energize any equipment being serviced before fastening or removing structural hardware. Do not substitute a lower-grade fastener in any application where Grade 8 is specified by the equipment manufacturer or applicable code.
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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