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The VALUE COLLECTION R68449444 is a hex socket cap screw designed for secure, high-torque fastening in industrial, mechanical, and trade applications. It features a 5/8-11 UNC thread size and a length under head of 2.5 inches. Drive engagement is through a 0.5 inch internal hex socket, making it compatible with standard Allen or hex key drives. The fastener is machined from 18-8 stainless steel, which provides corrosion resistance suitable for wet, outdoor, and chemically exposed environments. Machinists, millwrights, pipefitters, and general contractors commonly install these in structural assemblies, equipment mounts, and piping supports.
This screw is suited for use in both residential and commercial mechanical applications where a clean, flush or recessed fastener head is required. The 5/8-11 UNC coarse thread pattern provides strong pull-out resistance in steel, cast iron, and other threaded base materials. Typical install scenarios include equipment base plates, HVAC curb mounting, pump and motor mounts, and pipe hanger assemblies where corrosion resistance is a priority.
Designed as a standard 5/8-11 UNC hex socket cap screw suitable for any threaded hole or nut accepting the 5/8-11 UNC coarse thread standard.
Installation is performed with a 0.5 inch hex key or Allen driver; use a torque wrench rated for the fastener size to achieve proper clamp load per the assembly specification. Ensure mating threads are clean and free of debris before installation. In stainless-to-stainless applications, apply anti-seize compound to prevent galling. Follow applicable mechanical or structural codes for torque and joint requirements.
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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