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The VALUE COLLECTION D30104 is a fully threaded hex head cap screw designed for general mechanical fastening applications. It is manufactured from Grade 5 steel with a zinc-plated finish that provides basic corrosion resistance in indoor and light-duty environments. The screw measures 1 inch in length under the head and carries a 1/2-13 UNC thread designation, meaning 1/2-inch nominal diameter with 13 threads per inch. It conforms to ASME B18.2.1, the standard governing inch-series hex cap screws. This fastener is installed by mechanics, maintenance technicians, and tradespeople across HVAC, plumbing, electrical, and general equipment assembly work.
This screw is suited for residential and commercial mechanical assemblies where a standard-strength, fully threaded fastener is required. Typical applications include equipment mounting, bracket attachment, access panel fastening, and structural bolting in light to medium-duty steel assemblies. The UNC thread form is compatible with standard 1/2-13 nuts and tapped holes commonly found in equipment enclosures, support framing, and component brackets across trade and industrial settings. Minimum order quantity is 25 pieces per order.
Designed as a standard 1/2-13 UNC fully threaded hex head cap screw for use in any application requiring an ASME B18.2.1-compliant Grade 5 steel fastener with a zinc-plated finish.
Installation is performed by any qualified tradesperson or mechanic using a standard 3/4-inch wrench or socket. Always de-energize and isolate equipment before accessing mounting points on electrical or HVAC components. Apply a flat washer under the head when fastening into softer base materials to distribute clamping load. Do not exceed the Grade 5 torque rating for this thread size, and follow applicable equipment manufacturer specifications for final torque values.
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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