Value Collection R52000335 Machine Screw 1/4-20 X 1-1/4 in Brass

Product Description

The VALUE COLLECTION R52000335 is a brass machine screw with a 1/4-20 thread and a 1-1/4-inch length measured under the head. It features a round head profile and a slotted drive, making it compatible with standard flat-blade screwdrivers. Manufactured to ASME B18.6.3 dimensional standards, this fastener delivers consistent thread engagement and head geometry suited to precision mechanical assemblies. Brass construction provides natural corrosion resistance and electrical conductivity, making it appropriate for electrical enclosures, HVAC equipment, plumbing fixtures, and other trade applications where a non-ferrous fastener is required.

This machine screw is used in residential and light commercial applications wherever a 1/4-20 threaded fastener is needed in a corrosion-resistant, non-magnetic material. Typical installation scenarios include terminal block mounting, control panel assembly, access panel hardware, and general equipment fastening in HVAC, plumbing, and electrical work. The slotted drive and round head combination is common in legacy equipment and instrumentation assemblies that require standard tooling.

Key Features

• 1/4-20 thread size for broad compatibility with standard tapped holes and hex nuts
• 1-1/4-inch length under head for secure engagement across typical panel and bracket thicknesses
• Round head profile provides a low-profile bearing surface without a washer
• Slotted drive accepts standard flat-blade screwdrivers — no specialty tooling required
• Brass material offers corrosion resistance and is safe for use in electrical applications
• Meets ASME B18.6.3 standards for dimensional consistency and thread accuracy

Compatibility

Designed as a standard 1/4-20 machine screw replacement suitable for use in HVAC equipment panels, electrical enclosures, plumbing fixture hardware, and general mechanical assemblies requiring a brass, non-ferrous fastener conforming to ASME B18.6.3.

Installation Notes

Installation is performed by electricians, HVAC technicians, plumbers, or general mechanical trades using a standard flat-blade screwdriver. Always de-energize electrical equipment and shut off relevant system circuits before fastener service on live panels or control boards. Ensure the mating tapped hole or nut is clean and free of debris before driving the screw to avoid cross-threading the brass threads, which are softer than steel. Do not overtighten — brass fasteners are more susceptible to thread stripping than ferrous alternatives.