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The VALUE COLLECTION R40691436 is a hex socket cap screw designed for fastening applications that require a recessed drive and a clean, low-profile head. Sized at 5/16-24 UNF with a 3/4-inch length under head, this fastener is driven with a 1/4-inch hex key. The body is machined from 18-8 stainless steel, which provides corrosion resistance suitable for use in wet, outdoor, or chemically exposed environments. This screw is a standard choice for mechanical assemblies, equipment enclosures, and structural fastening tasks across HVAC, plumbing, electrical, and general trade work.
This fastener suits residential and commercial applications where a UNF thread form is specified. The fine 24-thread-per-inch pitch gives it higher thread engagement per unit length compared to coarse-thread variants, making it a preferred choice when vibration resistance or precise torque control is needed. Typical install scenarios include securing panels, brackets, pump housings, valve bodies, and similar mechanical components in trade service and equipment assembly.
Designed as a standard UNF hex socket cap screw for use in any application specifying a 5/16-24 thread, 3/4-inch length under head, and a 1/4-inch hex drive in 18-8 stainless steel.
Install using a calibrated hex key or socket bit driver sized at 1/4 inch. Verify thread engagement in the mating component before applying final torque to avoid cross-threading the fine UNF threads. Stainless-to-stainless fastener combinations can be prone to galling — apply an appropriate anti-seize compound when threading into stainless tapped holes. Always de-energize or shut down connected equipment before accessing fastened panels or components.
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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