Value Collection 0503MSU 5-40 X 3/16 Flat Head Slotted Machine Screw

Product Description

The VALUE COLLECTION 0503MSU is a 5-40 UNC machine screw designed for precision fastening applications in light mechanical assemblies. This screw features a flat head profile with a slotted drive, allowing installation with a standard flat-blade screwdriver. Manufactured from steel with a zinc finish for basic corrosion resistance, it conforms to ASME B18.6.3 and SAE J82 standards. The overall length is 3/16 inches with full thread running the length under the head at 3/16 inches. It is sold individually with a minimum order quantity of 100 pieces, making it suited for shop stock or production use.

This fastener is used in light-duty mechanical, electrical, and instrumentation applications where a flush-seating flat head is required. The 5-40 thread size is common in small enclosures, panel assemblies, control boards, and precision equipment. Technicians and assemblers working in HVAC controls, electrical panels, and light fabrication will find this screw applicable for countersunk hole installations where a low-profile surface finish is needed.

Key Features

• 5-40 UNC thread size for small-diameter precision fastening
• Flat head profile seats flush in countersunk holes
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for basic corrosion resistance
• Conforms to ASME B18.6.3 and SAE J82 fastener standards
• Sold individually with a minimum order quantity of 100 pieces for production or shop stock

Compatibility

Designed as a standard inch-series machine screw for use in countersunk applications requiring a 5-40 UNC thread and a flat head profile across light mechanical, electrical, and instrumentation assemblies.

Installation Notes

Installation is performed with a flat-blade screwdriver sized to the slotted head. Ensure the mating hole is properly countersunk to match the flat head angle before driving the screw. Do not overtorque, as the small diameter and steel construction can be susceptible to thread stripping in soft base materials. Confirm thread engagement in the receiving material meets minimum depth requirements per applicable fastener standards.