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The VALUE COLLECTION HCI203104000FT-050BX is a fully threaded hex head cap screw in the 5/16-18 UNC thread size with a 4-inch length under head. Manufactured from Grade 2 steel with a zinc-plated finish, this fastener provides basic corrosion resistance suitable for general-purpose mechanical and structural assembly. The full thread engagement along the shank length makes it well suited for applications requiring maximum thread purchase or through-bolt configurations. Licensed trades and maintenance professionals rely on this standard inch-series fastener for a wide range of light-duty service work.
This cap screw is used in residential and light commercial applications where a 5/16-18 UNC coarse-thread fastener is specified. Typical install scenarios include mechanical equipment mounting, bracket and frame assembly, and general maintenance tasks in HVAC, plumbing, electrical, and pool equipment service. The zinc plating provides adequate protection in dry to mildly humid indoor environments. This fastener is sold in a minimum order quantity of 50 pieces per order.
Designed as a general-purpose inch-series hex head cap screw compatible with any application specifying a 5/16-18 UNC fully threaded fastener.
Installation is performed using a standard hex wrench, ratchet, or impact driver fitted with the appropriate 5/16-inch hex socket. De-energize or shut down any equipment before accessing fastened assemblies. Do not use zinc-plated fasteners in submerged, outdoor, or high-humidity environments where a higher-grade corrosion-resistant coating or stainless material would be required. Torque to the value specified by the equipment manufacturer for 5/16-18 Grade 2 fasteners.
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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