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The VALUE COLLECTION MP30145-41/2 is a partially threaded hex head cap screw designed for general mechanical and structural fastening applications. Manufactured from Grade 5 steel with a zinc-plated finish, this screw offers reliable tensile strength and basic corrosion resistance suited to indoor and light-duty outdoor installations. The 5/8-11 UNC thread pattern mates with standard inch-series tapped holes and nuts, and the 4-inch length under head accommodates moderate stack-up thicknesses. Compliance with ASME B18.2.1 ensures dimensional consistency across interchangeable hardware. Partial threading provides a smooth shank section useful when clamping two or more members while maintaining shear strength at the joint.
This fastener is used across a wide range of trade applications including HVAC equipment mounting, plumbing support structures, electrical panel and equipment anchoring, and general mechanical assembly. The 5/8-11 thread size is common in medium-to-heavy structural connections and equipment bases. It is sold in packages of 10, making it practical for small batch repairs or controlled inventory stocking on service vehicles or in shop environments.
Designed as a standard inch-series hex head cap screw for use with 5/8-11 UNC tapped holes, nuts, and threaded inserts in steel, aluminum, and similar substrates where Grade 5 fastener specifications are required.
Installation is performed by mechanics, pipefitters, electricians, and HVAC technicians using standard hand or power tools with a 15/16-inch hex drive. Always de-energize and isolate equipment before fastening work near electrical or mechanical systems. Use appropriate flat washers and hardened nuts rated to Grade 5 or higher to match fastener strength. Follow applicable equipment manufacturer torque specifications and relevant codes such as the IFGC, IPC, or NEC when securing trade equipment.
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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