Value Collection MSTI02500500-100BX 1/4-20 Truss Head Screw

Product Description

The VALUE COLLECTION MSTI02500500-100BX is a 1/4-20 x 1/2 inch truss head machine screw designed for general fastening applications across mechanical, electrical, and light structural assemblies. The truss head profile offers a wider, lower-profile bearing surface than a standard pan head, distributing clamping load over a larger area. Slotted drive allows installation with a standard flat-blade screwdriver. Manufactured from Grade 2 steel with a zinc plating finish for basic corrosion resistance. This box contains 100 screws. Electricians, HVAC techs, and general tradespeople keep these on hand for panel assembly, equipment mounting, and fixture installation.

These screws are suited for residential and light commercial work where a UNC 1/4-20 thread is called for. The 1/2 inch length under head makes them appropriate for fastening thin sheet metal panels, junction box covers, equipment access doors, and similar light-gauge assemblies. The zinc-plated finish provides adequate corrosion protection for indoor and sheltered outdoor installations. The wide truss head seats cleanly against thin materials without pulling through.

Key Features

• 1/4-20 UNC thread for broad compatibility with standard tapped holes and hex nuts
• Truss head profile provides a wide bearing surface for thin-material fastening
• Slotted drive accepts standard flat-blade screwdrivers and power bits
• Grade 2 steel construction meets general-purpose fastener strength requirements
• Zinc plating offers basic corrosion resistance for indoor and sheltered environments
• Box of 100 screws for bench stock and field replenishment

Compatibility

Designed as a general-purpose UNC machine screw compatible with any standard 1/4-20 tapped hole, threaded insert, or hex nut in steel, aluminum, or plastic assemblies.

Installation Notes

Install with a flat-blade screwdriver or slotted power bit sized for a 1/4 inch drive. De-energize any electrical equipment before fastening panels or covers in accordance with NFPA 70 lockout/tagout requirements. Do not overtighten in thin sheet metal or plastic, as the truss head can deform soft base materials. Inspect threads in the mating component before driving to avoid cross-threading.