Value Collection SBFI03102500-100BX Machine Screw 5/16-18

Product Description

The VALUE COLLECTION SBFI03102500-100BX is a 5/16-18 x 2.5-inch flat head slotted machine screw supplied in a box of 100. Made from Grade 2 steel with a zinc-plated finish, this screw follows the Unified National Coarse (UNC) thread standard. The flat head profile sits flush with or below the surface of the workpiece, making it well suited for applications where a low-profile, countersunk fastener is required. Overall length is measured at 2.5 inches, with the same length recorded under the head. This is a standard inch-system fastener appropriate for general mechanical assembly work.

This screw is used across a wide range of trade and light industrial applications including HVAC equipment panels, electrical enclosures, plumbing fixture brackets, and general sheet metal or structural assembly. The slotted drive accommodates a flat-blade screwdriver, which is common in legacy equipment and field-service scenarios. The zinc plating provides basic corrosion resistance suitable for indoor and sheltered installations. Sold in a minimum order quantity of 100 pieces per box, this fastener is appropriate for contractors and technicians who maintain a working inventory of common hardware.

Key Features

• 5/16-18 UNC thread for broad compatibility with standard tapped holes and nuts
• 2.5-inch overall length with flat countersunk head for flush-mount installations
• Slotted drive works with standard flat-blade screwdrivers
• Grade 2 steel construction provides adequate strength for general-purpose fastening
• Zinc-plated finish offers basic corrosion resistance for indoor and sheltered use
• Sold in a box of 100 to support ongoing service and installation inventory

Compatibility

Designed as a general-purpose UNC machine screw compatible with any standard 5/16-18 tapped hole or mating nut in inch-system assemblies.

Installation Notes

Install with a properly sized flat-blade screwdriver to avoid cam-out and head damage. Ensure the receiving hole is tapped to 5/16-18 UNC specification before driving. For countersunk applications, verify the hole is chamfered to the correct angle to allow the flat head to seat flush. De-energize any electrical equipment and shut off relevant systems before accessing panels or enclosures where these fasteners are used.