Value Collection R63094166 Machine Screw 5/16-18 X 3 in

Product Description

The VALUE COLLECTION R63094166 is a 5/16-18 x 3 inch brass machine screw with a round head and slotted drive. It follows Unified National Coarse (UNC) thread standards and is supplied without a washer. The bright, uncoated brass finish offers natural corrosion resistance suitable for a range of light-duty mechanical assemblies. Length measurement is taken under the head, giving a full 3 inches of usable thread and shank engagement. This fastener is installed by electricians, HVAC technicians, plumbers, and general trade professionals wherever a non-ferrous, slotted round-head screw is required.

This screw is suited for use in electrical enclosures, panel work, plumbing fixture assemblies, and light mechanical equipment where brass is specified for corrosion resistance or to avoid galvanic issues with dissimilar metals. The 5/16-18 UNC thread is a widely used coarse-thread fastener size, compatible with standard tapped holes and hex nuts of the same designation. Typical applications include securing terminal blocks, grounding hardware, and equipment covers in residential and light commercial installations.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped components
• 3-inch length under head provides substantial engagement depth for thicker assemblies
• Round head profile distributes clamping load over a wider bearing surface
• Slotted drive accommodates standard flat-blade screwdrivers
• Brass construction resists corrosion and prevents galvanic reaction with copper or brass mating parts
• Bright, uncoated finish — no added plating that could affect thread fit or electrical conductivity

Compatibility

Designed as a standard 5/16-18 UNC round-head slotted machine screw for use in any application requiring a brass fastener of this thread size and length.

Installation Notes

Install with a flat-blade screwdriver sized to the slot width to avoid cam-out or slot damage. De-energize all electrical circuits before working in panels or enclosures where this screw will be used. Brass is a softer material than steel — avoid over-torquing, which can strip threads or deform the head. Verify that mating tapped holes or nuts are also rated for 5/16-18 UNC thread engagement before installation.