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The VALUE COLLECTION 88548987 is a partially threaded hex head cap screw designed for general industrial and mechanical fastening applications. Manufactured from Grade 5 steel with a zinc-plated finish, this fastener provides reliable clamping strength and corrosion resistance in a wide range of assembly and maintenance tasks. The 1/2-13 UNC thread size and 2-1/2 inch length under head make it well suited for medium-duty structural connections. The partial threading allows the unthreaded shank to bear shear loads while the threaded portion engages the mating nut or tapped hole. This package contains 3 pieces.
This hex head cap screw is used across residential and commercial construction, mechanical equipment assembly, HVAC framework, and general industrial maintenance. The 1/2-13 UNC thread is a standard coarse-thread configuration, compatible with standard hex nuts, flat washers, and lock washers of the same thread size. The zinc-plated finish provides moderate corrosion protection suitable for indoor and sheltered outdoor environments. Licensed mechanics, millwrights, HVAC installers, and general maintenance technicians are the primary installers of this fastener type.
Designed as an OEM-style replacement or standard-service fastener for any application requiring a 1/2-13 UNC partially threaded hex head cap screw with a 2-1/2 inch length under head in Grade 5 steel.
Installation should be performed by qualified mechanics or maintenance technicians using calibrated torque wrenches sized for a 3/4 inch hex drive. Always de-energize or lock out equipment before fastener replacement in live mechanical or electrical assemblies. Do not mix Grade 5 hardware with higher-grade components in critical load-bearing joints without engineering review. Follow applicable torque specifications from the equipment manufacturer or relevant structural codes.
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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