Value Collection R63094442 Machine Screw 5/16-18 X 1.5in Brass

Product Description

The VALUE COLLECTION R63094442 is a round head slotted machine screw with a 5/16-18 UNC thread and a 1-1/2 inch length measured under the head. Manufactured from bright, uncoated brass, this fastener provides natural corrosion resistance and good conductivity properties suitable for light mechanical assembly, electrical enclosures, and plumbing fixtures. The slotted drive accommodates a standard flat-blade screwdriver. The round head profile sits above the mating surface and distributes clamping load over a wider bearing area. This screw ships without a washer and is sold in a minimum order quantity of 5 pieces.

This screw is suited for residential and light commercial applications where brass fasteners are specified to prevent galvanic corrosion, meet aesthetic requirements, or satisfy code requirements restricting ferrous hardware in wet or corrosive environments. Typical install scenarios include panel assembly, fixture mounting, terminal block fastening, and general light-duty mechanical assembly. Electricians, plumbers, and HVAC technicians commonly specify brass machine screws in these contexts when steel fasteners are not acceptable.

Key Features

• 5/16-18 UNC thread form — standard coarse-thread inch series
• 1-1/2 inch length under head for accurate engagement depth planning
• Round head profile provides wide bearing surface without countersinking
• Slotted drive compatible with standard flat-blade screwdrivers
• Bright uncoated brass finish — no plating to chip or corrode
• No washer included — washer style is without washer

Compatibility

Designed as a general-purpose UNC machine screw for any application requiring a 5/16-18 threaded brass fastener with a round slotted head and 1-1/2 inch under-head length.

Installation Notes

Install with a properly sized flat-blade screwdriver to avoid cam-out and slot damage on the brass head. De-energize electrical panels and shut off relevant systems before fastening hardware in live enclosures or mechanical assemblies. Brass is a softer material than steel — do not overtighten, as thread stripping and head deformation can occur. Follow applicable NEC, IPC, or IFGC guidelines when specifying fastener material in code-governed installations.