Value Collection R63060362 Machine Screw 5/16-18

Product Description

The VALUE COLLECTION R63060362 is a 5/16-18 x 2.5-inch flat head slotted machine screw manufactured from grade 18-8 stainless steel with a bright, uncoated finish. It uses Unified National Coarse (UNC) threading and is sized by overall length. The flat head profile sits flush with the mating surface when fully driven, making it well suited for applications where a low-profile fastener is required. The slotted drive accepts a standard flat-blade screwdriver. This fastener is a staple in mechanical assembly, maintenance, and fabrication work across HVAC, plumbing, electrical, and general trade environments.

This machine screw is appropriate for residential and light commercial applications where corrosion resistance is a priority. Grade 18-8 stainless steel performs well in damp or mildly corrosive environments, making it a common choice for equipment panels, brackets, junction boxes, and mechanical enclosures. It is installed without a washer under the head. Sold individually per package with a minimum order quantity of 5 units.

Key Features

• 5/16-18 UNC thread — coarse pitch for reliable engagement in standard tapped holes and nuts
• 2.5-inch overall length with flat head profile for flush-mount installation
• Grade 18-8 stainless steel construction for corrosion resistance in damp or outdoor-adjacent environments
• Bright, uncoated finish — no additional plating that could affect dimensional tolerance in tight clearances
• Slotted drive for use with standard flat-blade screwdrivers or slotted bits
• No washer under head — flat bearing surface seats directly against the work piece

Compatibility

Designed for use in any standard 5/16-18 UNC tapped hole or paired with a 5/16-18 hex nut, applicable across general mechanical assembly, equipment mounting, and panel fastening in trade and industrial settings.

Installation Notes

This fastener is installed by any trade technician performing mechanical assembly or equipment service. Ensure the mating hole is properly tapped to 5/16-18 UNC before driving the screw. Use an appropriately sized flat-blade screwdriver or slotted bit to avoid cam-out and head damage. Do not overtighten stainless steel fasteners in stainless tapped holes, as galling can occur — apply an anti-seize compound when fastening into stainless mating threads.