Value Collection R63060242 Flat Head Machine Screw 1/4-20

Product Description

The VALUE COLLECTION R63060242 is a 1/4-20 UNC flat head slotted machine screw manufactured from 18-8 stainless steel with a bright, uncoated finish. At 5/8 inches in overall length, this fastener features a countersunk flat head profile designed to sit flush with or below the surface of the mating material. The 18-8 stainless steel construction provides corrosion resistance suitable for general-purpose indoor and outdoor applications. The slotted drive accepts a standard flat-blade screwdriver. This screw is sold individually per package with a minimum order quantity of 100 pieces.

This fastener is suited for light mechanical assembly, electrical panel work, HVAC equipment enclosures, and general trade fabrication where a flush-mount fastener and moderate corrosion resistance are required. The 1/4-20 UNC thread is one of the most common coarse-thread sizes in North American trade applications, making this screw a reliable stock item for service trucks and shop inventory. It is appropriate for use in stainless or non-ferrous assemblies where galvanic compatibility is a consideration.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes and hardware
• 5/8 inches overall length with flat head profile for flush or countersunk installations
• 18-8 stainless steel construction for corrosion resistance in damp or outdoor environments
• Bright, uncoated finish — no added plating that can interfere with tight tolerances
• Slotted drive accepts standard flat-blade screwdrivers — no specialty tools required
• Sold without washer; washer style is plain for clean countersunk seating

Compatibility

Designed for use in any application requiring a 1/4-20 UNC coarse-thread flat head machine screw with a 5/8-inch overall length and slotted drive.

Installation Notes

This screw is installed by general tradespeople and mechanical assemblers using a standard flat-blade screwdriver or slotted bit. Ensure the mating hole is tapped to 1/4-20 UNC specifications and that the countersink angle matches the flat head geometry before seating. Do not overtighten stainless steel fasteners into stainless tapped holes, as galling can occur — apply an anti-seize compound when threading into stainless or aluminum. Follow applicable mechanical or electrical codes when using fasteners in code-governed assemblies.