Value Collection 90624 1/4-20 X 3/4 in Brass Machine Screw

Product Description

The VALUE COLLECTION 90624 is a 1/4-20 brass machine screw with a round head and slotted drive, conforming to ASME B18.6.3. The 3/4-inch length is measured under the head, making it a standard unified inch-series fastener suited for general mechanical assembly work. Brass construction provides corrosion resistance and electrical non-conductivity, making this screw appropriate for applications where steel fasteners are unsuitable. This screw ships in a minimum order quantity of 50 pieces, intended for shop stock or job lot use by maintenance technicians, electricians, plumbers, and HVAC service professionals.

This fastener is used in a wide range of trade and industrial assembly applications where a 1/4-20 thread pattern is specified. Round head geometry provides a low-profile finished appearance on exposed panels, enclosures, and equipment housings. The slotted drive is compatible with standard flat-blade screwdrivers and is commonly found on legacy equipment and control panels. Brass material makes it a common choice for plumbing fixtures, electrical enclosures, and marine or humid-environment applications where ferrous fasteners would corrode.

Key Features

• 1/4-20 unified coarse thread for broad tooling and hardware compatibility
• 3/4-inch length measured under head per ASME B18.6.3
• Brass material resists corrosion and is non-magnetic and non-sparking
• Round head profile suits flush and exposed panel installations
• Slotted drive works with standard flat-blade screwdrivers
• Sold in multiples of 50 for shop stock and service van inventory

Compatibility

Designed as a standard 1/4-20 inch-series machine screw replacement or stock fastener for use in mechanical assemblies, electrical enclosures, control panels, and plumbing or HVAC equipment requiring brass hardware.

Installation Notes

Installation is performed by hand tool using a flat-blade screwdriver sized to the slot. Brass is softer than steel — avoid power-driving at high torque to prevent head stripping or thread galling. When used in electrical enclosures, verify that the fastener material and thread engagement comply with the applicable NEC requirements for the installation. Ensure mating threads in the receiving material are clean and free of debris before driving.