Value Collection 1407MSL 1/4-20 X 7/16 in Fillister Screw

Product Description

The Value Collection 1407MSL is a 1/4-20 fillister head machine screw with a slotted drive, designed for general fastening applications in mechanical assemblies. The screw is manufactured from steel with a zinc finish for basic corrosion resistance and measures 7/16 inches in length under head. It conforms to ASME B18.6.3 and SAE J82 standards, confirming dimensional and material consistency expected in production and maintenance environments. This screw is installed by machinists, millwrights, and maintenance technicians where a low-profile fillister head and slotted drive are required for controlled tightening in tapped holes.

This fastener suits light-to-medium-duty mechanical assemblies where a 1/4-20 threaded hole is present. Its fillister head profile sits above the surface, allowing clearance in counterbored applications. The slotted drive is compatible with standard flathead screwdrivers. Typical use cases include panel mounting, equipment enclosures, and general machinery maintenance. This item is sold individually but requires a minimum order quantity of 100 units per order.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes
• Fillister head provides a taller head height with a small diameter for recessed or counterbored seating
• Slotted drive for use with standard flathead screwdrivers
• Steel construction with zinc finish for basic corrosion resistance
• Conforms to ASME B18.6.3 and SAE J82 standards
• No washer — bare underhead bearing surface for direct clamping

Compatibility

Designed as a standard inch-series machine screw for use in any application requiring a 1/4-20 tapped hole with fillister head clearance and slotted drive access.

Installation Notes

This screw is installed by hand-starting into a pre-tapped 1/4-20 hole before driving with a standard flathead screwdriver. Ensure the mating thread is clean and free of debris before installation. Do not overtighten, as the slotted drive has lower torque transfer capacity compared to hex or Torx drives. Always verify thread engagement depth is sufficient for the clamping load required by the application.