Value Collection R63094444 5/16-18 Brass Round Head Slotted Screw

Product Description

The VALUE COLLECTION R63094444 is a brass machine screw with a 5/16-18 UNC thread and a 1-1/4 inch length measured under the head. It features a round head profile with a slotted drive, making it compatible with standard flat-blade screwdrivers. The bright, uncoated brass finish provides moderate corrosion resistance and is well suited for applications where galvanic compatibility with brass fittings or components is required. This screw follows inch-system dimensions and meets standard UNC thread specifications, making it a reliable choice for general mechanical assembly in trade and light industrial settings.

This screw is commonly used in plumbing, electrical enclosure assembly, HVAC panel work, and general mechanical fastening where a brass fastener is specified. The round head sits above the surface of the workpiece, which suits through-hole applications where a flush profile is not required. It is sold individually but must be ordered in multiples of 5 per the manufacturer minimum order requirement.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard inch-system tapped holes
• 1-1/4 inch length under head for accurate depth planning in assemblies
• Round head profile with slotted drive — accepts standard flat-blade screwdrivers
• Brass construction with bright, uncoated finish for corrosion resistance and galvanic compatibility
• No washer included; without-washer style for direct head-to-surface seating
• Inch-system dimensions conforming to UNC thread standards

Compatibility

Designed as a standard UNC inch-system machine screw for use in any tapped or threaded hole sized for 5/16-18 thread pitch in brass, aluminum, or other materials where a brass fastener is appropriate.

Installation Notes

Install using a flat-blade screwdriver sized to the slot width; an undersized blade can damage the slot and strip the head. Brass is a softer material than steel — do not overtighten, as the threads can strip or the head can shear under excessive torque. Ensure the mating threaded hole is clean and properly tapped to 5/16-18 UNC specification before installation. Follow applicable mechanical or electrical codes when using fasteners in panel or enclosure assemblies.