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The VALUE COLLECTION 86853496 is a 1/2-13 x 2-1/2 inch hex head cap screw designed for high-strength mechanical fastening applications. Built from Grade 8 steel with a zinc-plated finish, this screw delivers superior tensile strength and corrosion resistance compared to lower-grade fasteners. The partial threading design provides a smooth shank section under the head, which is important for clamping applications where shank load-bearing is required. Sold in a pack of 5, this fastener follows UNC thread standards and is measured by length under head. It is commonly installed by millwrights, pipefitters, HVAC mechanics, plumbers, and general maintenance technicians.
This cap screw is suited for structural, mechanical, and equipment assembly applications in both commercial and industrial settings. The 1/2-13 UNC thread size is one of the most widely used coarse-thread fastener sizes in North American trade work, making this screw a standard go-to for equipment mounts, brackets, flanges, and general mechanical assemblies where high clamping force is needed. The zinc plating provides a basic barrier against oxidation in dry and mildly humid environments.
Designed as a standard UNC inch-series hex head cap screw for use with any 1/2-13 threaded nut, insert, or tapped hole conforming to UNC thread standards in mechanical and structural assemblies.
Installation should be performed by a qualified mechanic or tradesperson using an appropriate socket or wrench sized for a 1/2-inch hex cap screw. Always verify that mating threads and tapped hole depth are compatible before installation. Do not exceed the rated clamp load of Grade 8 fasteners for the given joint material, and consult applicable equipment service manuals or structural specifications for torque requirements. Use thread-locking compound or hardened washers where vibration or dynamic loading is a factor.
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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