Value Collection 5040MPF 1/2-13 X 2.5in Flat Head Phillips Screw

Product Description

The VALUE COLLECTION 5040MPF is a 1/2-13 UNC machine screw with a flat head and Phillips drive, manufactured from steel with a zinc finish. It measures 2.5 inches in overall length and is sized for standard inch-system fastener applications. The zinc coating provides basic corrosion resistance for general-purpose use in metal assemblies. This screw conforms to ASME B18.6.3 and SAE J82 standards, confirming dimensional and mechanical consistency. It is suited for mechanical assembly work performed by maintenance technicians, millwrights, and trade professionals requiring a countersunk fastener in steel or structural components.

This fastener is intended for use in general industrial and mechanical assemblies where a flat head profile is required to sit flush with or below the surface of the mating material. The 1/2-13 thread designation refers to a 1/2-inch nominal diameter with 13 threads per inch, a common coarse-thread specification in HVAC equipment frames, electrical enclosures, and mechanical support structures. No washer is included or required under the head per the standard specification.

Key Features

• 1/2-13 UNC coarse thread for broad compatibility with standard tapped holes
• Flat head profile allows flush or countersunk seating in mating surfaces
• Phillips drive for use with standard Phillips-head bits and screwdrivers
• Steel construction with zinc finish for general-purpose corrosion resistance
• Meets ASME B18.6.3 and SAE J82 dimensional standards
• No washer required under head per specification

Compatibility

Designed as a standard inch-system machine screw for use in any application requiring a 1/2-13 UNC coarse-thread flat head Phillips fastener conforming to ASME B18.6.3 and SAE J82.

Installation Notes

Installation is performed by hand or with a Phillips-head driver or impact driver with appropriate bit. Ensure the mating hole is properly tapped or threaded to 1/2-13 UNC specification before driving the fastener. For countersunk applications, verify the receiving material is chamfered to match the flat head angle. Power down or de-energize any equipment before accessing fastened assemblies in electrical or HVAC enclosures.