Value Collection R52000302 Flat Head Slotted Machine Screw

Product Description

The VALUE COLLECTION R52000302 is a flat head slotted machine screw sized 1/4-20 x 1 inch, manufactured from brass. It is designed for general mechanical fastening applications where a flush or countersunk finish is required. The 1/4-20 unified coarse thread provides reliable thread engagement across a wide range of mating materials. Conforming to ASME B18.6.3, this screw meets established dimensional and performance standards for inch-series machine screws. It is suitable for use by maintenance technicians, electricians, plumbers, and HVAC service professionals who require a corrosion-resistant brass fastener in their assemblies or panel work.

This screw is appropriate for use in light-duty mechanical assemblies, electrical enclosures, control panels, and plumbing fixture installations where brass is preferred for its corrosion resistance and non-sparking properties. The flat head profile seats flush in countersunk holes, making it well suited for applications where a smooth surface is necessary. The slotted drive allows installation with a standard flat-blade screwdriver. This item is sold individually but carries a minimum order quantity of 100 pieces per order.

Key Features

• 1/4-20 unified coarse thread for broad compatibility with standard tapped holes
• Flat head design seats flush in countersunk applications for a clean finished surface
• Slotted drive accommodates standard flat-blade screwdrivers
• Brass construction offers corrosion resistance and non-sparking characteristics
• Meets ASME B18.6.3 dimensional and tolerance standards for inch-series machine screws
• No washer — overall length and length under head are both 1 inch

Compatibility

Designed as a standard inch-series machine screw suitable for any application requiring a 1/4-20 flat head slotted fastener in brass, including use in countersunk holes per ASME B18.6.3 specifications.

Installation Notes

Installation is performed with a flat-blade screwdriver sized to fit the slotted drive without slipping, which can damage the head or surrounding material. Ensure the mating hole is properly countersunk to the correct angle before driving to achieve a flush seat. De-energize any electrical panel or control enclosure fully before installing fasteners in live equipment. Brass is a softer material than steel — avoid overtorquing, which can strip threads or deform the head.