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The VALUE COLLECTION R50000280 is a 3/8-16 x 3-inch round head slotted machine screw made from alloy steel with a zinc-plated finish. It features Unified National Coarse (UNC) threading and is measured under the head, giving a full 3 inches of thread engagement. This fastener is suited for general mechanical assembly work in HVAC equipment, electrical enclosures, plumbing fixtures, and structural panel mounting. Electricians, HVAC technicians, and plumbers commonly use this screw type when securing components that require a broad bearing surface from the round head profile.
This screw is appropriate for both light industrial and commercial trade applications where a zinc-plated alloy steel fastener is required for corrosion resistance and mechanical strength. The slotted drive accommodates standard flat-blade screwdrivers, making it a practical choice in confined spaces or field service work where bit selection is limited. It is sold in minimum order quantities of 50 pieces per package.
Designed as a general-purpose UNC machine screw for use in mechanical assemblies, equipment panels, and enclosures requiring 3/8-16 threaded fasteners with a round head slotted drive profile.
Install using a flat-blade screwdriver or slotted bit driver sized to the head recess. Ensure the mating threads are clean and free of debris before driving the screw. Apply appropriate thread lubricant or anti-seize compound when fastening into dissimilar metals to prevent galling. Follow applicable assembly torque guidelines from the equipment manufacturer when tightening into tapped holes.
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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