Value Collection 1456MSL Machine Screw 1/4-20 Fillister Slotted

Product Description

The VALUE COLLECTION 1456MSL is a 1/4-20 machine screw with a fillister head and slotted drive, measuring 3-1/2 inches in length under the head. Manufactured from steel with a zinc finish, this fastener meets the ASME B18.6.3 and SAE J82 dimensional and material standards. The fillister head profile sits taller than a standard pan head, providing a larger bearing surface and more socket depth for the slotted driver. This screw is a standard inch-system fastener installed by machinists, millwrights, electricians, and general trades technicians in light to medium mechanical assemblies.

This screw is suited for use in panel assemblies, electrical enclosures, light mechanical structures, and general fabrication applications where a 1/4-20 coarse-thread fastener is specified. The zinc coating provides basic corrosion resistance in indoor and protected environments. Sold individually per package with a minimum order quantity of 10 pieces, this fastener is appropriate for bench stock, MRO replenishment, or low-volume service work.

Key Features

• 1/4-20 coarse thread for broad compatibility with standard tapped holes and nuts
• Fillister head profile provides deep slot engagement and a taller bearing surface compared to flat or pan head styles
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for basic corrosion resistance in indoor applications
• Meets ASME B18.6.3 and SAE J82 fastener standards
• Inch system dimensions throughout; no conversion required for standard US hardware applications

Compatibility

Designed for use in any application requiring a 1/4-20 coarse-thread machine screw with a fillister head and slotted drive in the inch measurement system.

Installation Notes

Install using a flat-blade screwdriver sized to fit the slot without slipping to avoid cam-out and head damage. Ensure the mating tapped hole or nut is clean and free of debris before driving. Do not over-torque; steel zinc-plated screws at this diameter are subject to thread stripping if torque is not controlled. Power down any equipment and follow applicable lockout/tagout procedures before fastener service on live panels or enclosures.