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The VALUE COLLECTION R63038884 is a hex head cap screw designed for precision fastening applications requiring a unified fine thread (UNF) profile. Sized at 1/2-20 with a 1-1/2 inch length under head and a 3/4 inch hex drive, this fastener is manufactured from 18-8 stainless steel for reliable corrosion resistance in wet, chemical-exposed, or outdoor environments. It is a standard inch-system fastener suited for mechanical assemblies, equipment mounting, and maintenance work across HVAC, plumbing, electrical, and general industrial trade applications.
This screw is appropriate for use in residential and commercial trade settings where corrosion resistance and a fine thread engagement are required. The UNF thread standard provides tighter thread spacing compared to coarse thread, making it well suited for applications where vibration resistance or precise torque control is important. Licensed tradespeople and maintenance technicians in HVAC, plumbing, and electrical fields routinely use fasteners of this specification for equipment panels, brackets, and structural connections.
Designed as a standard inch-system UNF hex head cap screw suitable for use in any application calling for a 1/2-20 x 1-1/2 inch stainless steel fastener.
Installation of this fastener is appropriate for any qualified trade professional or maintenance technician working with threaded fastener assemblies. Ensure mating threads are clean and free of debris before installation. Use a calibrated torque wrench when torque specifications are called out by the equipment manufacturer. Avoid mixing stainless steel fasteners with dissimilar metals in corrosive environments to prevent galvanic corrosion.
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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