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The VALUE COLLECTION R40684442 is a hex socket cap screw designed for high-strength fastening applications where a recessed drive is required. Built from 18-8 stainless steel, this fastener resists corrosion and performs reliably in wet, chemical-exposed, or outdoor environments. The 1/2-13 UNC thread size provides a coarse thread pattern suited to general mechanical assembly, structural connections, and equipment fabrication. The screw measures 4 inches in length under the head and accepts a 3/8 inch hex (Allen) drive. Plumbers, pipefitters, electricians, HVAC mechanics, and general industrial tradespeople install fasteners of this type when stainless corrosion resistance is required alongside solid clamping force.
This socket cap screw is appropriate for use in residential and commercial mechanical systems, equipment panels, pipe supports, and fabricated assemblies where a flush or recessed fastener head is preferred. The coarse 1/2-13 UNC thread is compatible with standard tapped holes and hex nuts of the same thread designation. The 18-8 stainless steel grade is widely used in plumbing, HVAC, and marine-adjacent applications where mild to moderate corrosive conditions are present. This screw is sold individually and is available in a minimum order quantity of 5 units.
Designed as a standard 1/2-13 UNC hex socket cap screw suitable for any application or assembly requiring a fastener of this thread size, drive type, and stainless steel material grade.
Installation requires a 3/8 inch hex key or Allen bit driver of adequate length to reach the fastener head. Ensure the mating tapped hole or nut is clean and free of debris before threading. Stainless fasteners are susceptible to galling under high torque; apply an appropriate anti-seize compound when torquing into stainless or aluminum tapped holes. Always follow the equipment manufacturer's fastener torque specifications for the assembly being serviced.
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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