Value Collection MS24693-C91 Flat Head Machine Screw

Product Description

The VALUE COLLECTION MS24693-C91 is a flat head Phillips machine screw designed for secure, flush-mount fastening in metal and composite assemblies. Sized at 1/4-20 thread with a 5/16-inch overall length, this screw conforms to the MS24693 military fastener standard and is manufactured from 18-8 stainless steel for corrosion resistance. The flat head countersinks flush with the mating surface, making it well-suited for applications where a smooth, low-profile finish is required. This hardware is used by mechanical contractors, HVAC fabricators, electricians, and industrial maintenance technicians in a wide range of panel, bracket, and enclosure assembly work.

This screw is appropriate for use in light-duty structural and non-structural fastening applications where corrosion resistance is needed. Common install scenarios include electrical enclosure assembly, HVAC equipment panels, plumbing fixture mounting, and general sheet metal or machined-part fastening. The 1/4-20 coarse thread engages quickly and holds reliably in tapped holes across steel, aluminum, and similar substrates. No washer is included or required under the head for standard countersunk installations.

Key Features

• 1/4-20 coarse thread for fast engagement in tapped holes
• 5/16-inch overall length with full-length thread under head
• Flat head design countersinks flush with mating surface
• Phillips drive for compatibility with standard power and hand drivers
• 18-8 stainless steel construction provides corrosion resistance in wet and outdoor environments
• Conforms to MS24693 military fastener standard

Compatibility

Designed as a standard 1/4-20 flat head Phillips machine screw conforming to the MS24693 fastener specification, suitable for use wherever this thread size and head style are called out in fabrication or maintenance documentation.

Installation Notes

Installation is performed by mechanical technicians, electricians, or HVAC fabricators using a Phillips screwdriver or matching power driver bit. Ensure the mating hole is properly tapped or threaded to 1/4-20 specification before driving. Countersink the receiving material to the appropriate angle for flat head fasteners to achieve a flush finish. Do not overtorque stainless steel fasteners, as galling can occur; apply anti-seize compound to the threads if repeated disassembly is anticipated.