Value Collection 3120MPF Flat Head Phillips Machine Screw

Product Description

The VALUE COLLECTION 3120MPF is a flat head Phillips machine screw designed for secure fastening in metal assemblies, machinery, and structural applications. This screw features a 5/16-18 thread size and an overall length of 1-1/4 inches, making it well-suited for medium-duty fastening tasks. Constructed from steel with a zinc-plated finish, it provides corrosion resistance for use in a range of indoor and light-duty outdoor environments. The flat head profile allows the fastener to sit flush with or countersunk into the mating surface. Machinists, millwrights, electricians, and general maintenance technicians commonly work with this fastener type.

This machine screw is appropriate for general industrial, mechanical, and electrical enclosure applications where a Phillips drive flat head fastener is required. Its 5/16-18 coarse thread pattern is compatible with standard tapped holes and threaded inserts of the same specification. The zinc plating provides a base level of corrosion protection suitable for dry or mildly humid service environments. It is sold in multiples of 50 units per order.

Key Features

• 5/16-18 coarse thread for compatibility with standard tapped holes and threaded inserts
• Flat head profile allows flush or countersunk installation in mating surfaces
• Phillips drive for quick installation with standard hand and power tools
• Steel construction with zinc-plated finish for corrosion resistance
• Meets ASME B18.6.3 and SAE J82 fastener standards
• Overall length of 1-1/4 inches; length under head of 1-1/4 inches

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 5/16-18 flat head Phillips fastener conforming to ASME B18.6.3 and SAE J82 specifications.

Installation Notes

Installation is performed with a standard Phillips screwdriver or Phillips bit driver of the appropriate size. Ensure the mating hole is properly tapped or uses a matching threaded insert before driving the screw. Do not exceed the torque rating for the thread size and material grade to avoid stripping or fastener failure. Always de-energize any electrical equipment before performing fastener work on enclosures or panels.