Value Collection 1516MPF 1/4-28x1in Flat Head Phillips Screw

Product Description

The VALUE COLLECTION 1516MPF is a 1/4-28 unified fine thread machine screw designed for general fastening applications in metal assemblies. It features a flat head profile and Phillips drive, allowing it to sit flush with or below the surface of a countersunk workpiece. Constructed from steel with a zinc finish coating, it meets ASME B18.6.3 and SAE J82 standards for dimensional and mechanical compliance. The overall length is 1 inch, measured from the top of the head to the end of the shank. This screw is a standard hardware item installed by machinists, electricians, HVAC technicians, and general tradespeople during panel assembly, equipment mounting, and component fastening tasks.

This screw is suited for use in light to medium-duty metal fastening applications where a flush or countersunk finish is required. The 1/4-28 fine thread pitch provides tighter thread engagement and better resistance to loosening under vibration compared to coarse thread equivalents, making it appropriate for mechanical assemblies, electrical enclosures, HVAC equipment panels, and similar trade installations. It is sold individually but requires a minimum order quantity of 100 pieces per order.

Key Features

• 1/4-28 unified fine thread for tight engagement and vibration resistance
• Flat head with Phillips drive for flush or countersunk installations
• Steel construction with zinc finish for corrosion resistance in indoor applications
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• Overall length of 1 inch; length under head also 1 inch
• No washer included; sold without washer

Compatibility

Designed as a standard 1/4-28 x 1 inch flat head Phillips machine screw conforming to ASME B18.6.3 and SAE J82, suitable for use in any application specifying this thread size, drive type, and head style in steel with zinc finish.

Installation Notes

Install using a Phillips screwdriver or Phillips-tip power driver sized for a 1/4-inch screw head. Countersink the mating material to the appropriate angle before installation to achieve a flush seating surface. Power down or de-energize any electrical equipment before fastening screws on live panels or enclosures in accordance with applicable NFPA 70 (NEC) lockout/tagout procedures. Do not overtighten, as fine thread fasteners in thin metal are susceptible to thread stripping.