Value Collection MSTI02503500-100BX Machine Screw 1/4-20

Product Description

The VALUE COLLECTION MSTI02503500-100BX is a 1/4-20 truss head machine screw designed for general fastening applications in metal, wood, and composite assemblies. The truss head profile provides a wide, low-profile bearing surface that distributes clamping load across a larger area than a standard pan or round head. A slotted drive accepts a flat-blade screwdriver. Manufactured from steel with a zinc-plated finish for basic corrosion resistance, this screw meets ASME B18.6.3 dimensional standards and is rated Grade 2. Length under head is 3-1/2 inches. Sold in boxes of 100.

This fastener is suited for light- to medium-duty assembly work across residential and light commercial applications. Electricians, HVAC installers, plumbers, and general contractors use 1/4-20 machine screws for panel mounting, equipment fastening, and structural bracketing. The zinc coating makes these appropriate for dry or mildly humid indoor environments. The slotted drive is compatible with standard flat-blade screwdrivers and power bits, making them easy to install with common hand or power tools available on any job site.

Key Features

• 1/4-20 unified coarse thread for broad hardware compatibility
• Truss head provides a wide bearing surface and low-profile appearance
• Slotted drive works with standard flat-blade screwdrivers and power bits
• Zinc-plated steel finish offers basic corrosion protection in dry environments
• Grade 2 steel meets ASME B18.6.3 dimensional standard
• Sold in a box of 100 for job-site and shop use

Compatibility

Designed as a standard 1/4-20 inch-series machine screw meeting ASME B18.6.3, compatible with any 1/4-20 tapped hole or standard 1/4-20 nut in light-duty steel, aluminum, or composite assemblies.

Installation Notes

Install with a flat-blade screwdriver or matching power bit rated for slotted drives. Ensure the mating hole is properly tapped to 1/4-20 or use with an appropriate 1/4-20 hex nut and washer as required by the assembly. Do not overtighten Grade 2 fasteners in soft materials such as aluminum or plastic, as thread stripping can occur. Follow applicable mechanical codes and equipment manufacturer torque guidance for structural or load-bearing connections.