Value Collection MSCI03100750-100BX Machine Screw 5/16-18

Product Description

The VALUE COLLECTION MSCI03100750-100BX is a 5/16-18 x 3/4 inch fillister head machine screw designed for general mechanical fastening in industrial, commercial, and trade applications. Built from Grade 2 steel with a zinc-plated finish, this screw offers reliable corrosion resistance for indoor and light-duty outdoor use. The fillister head profile provides a taller, narrower head than a pan head, giving more drive depth for slotted drivers and a positive grip in recessed or close-tolerance assemblies. Thread pitch is 5/16-18 UNC, a coarse unified national thread standard common across machinery, fixtures, and equipment. Sold in a box of 100 units.

This screw suits a wide range of trade and light industrial assembly tasks — including HVAC equipment panels, electrical enclosures, pump housings, and general mechanical fixtures. The 3/4-inch length is measured under the head, making it well suited for fastening thin-to-medium gauge metal components. Electricians, HVAC technicians, plumbers, and maintenance mechanics regularly use this size when securing cover plates, mounting brackets, or component assemblies in equipment rooms and mechanical spaces.

Key Features

• 5/16-18 UNC coarse thread — widely compatible with standard tapped holes in machinery and equipment
• Fillister head profile provides deep slotted drive recess for positive torque transfer
• Grade 2 steel construction meets general-purpose mechanical fastening requirements
• Zinc-plated finish provides corrosion resistance for indoor and light-duty environments
• 3/4 inch length measured under head — consistent fitment in standard tapped assemblies
• Sold in a box of 100 for stocking and repeat-use applications

Compatibility

Designed as a general-purpose UNC machine screw compatible with any standard 5/16-18 tapped hole in steel, aluminum, or thermoplastic assemblies across HVAC, electrical, plumbing, and mechanical equipment applications.

Installation Notes

Install with a standard flat-blade screwdriver or slotted bit sized for a 5/16 fillister head. De-energize or shut off equipment fully before fastening or removing screws on live panels or enclosures. Do not overtighten into tapped blind holes; engage all available thread depth before applying final torque. Inspect threads for damage before installation to ensure full engagement and secure hold.