Value Collection MPTI02500500-025B 1/4-20 X 1/2in Truss Screw

Product Description

The VALUE COLLECTION MPTI02500500-025B is a 1/4-20 UNC machine screw with a truss head and Phillips drive. It measures 1/2 inch in length under the head and is manufactured from Grade 2 steel with a zinc finish for basic corrosion resistance. The truss head profile is low and wide, distributing clamping load over a larger surface area than a standard pan head. This screw is a standard inch-system fastener suited for general-purpose mechanical assembly across HVAC, electrical, plumbing, and light structural applications. It ships in a minimum order quantity of 25 pieces.

This fastener is used in a wide range of trade and light industrial assembly applications where a low-profile head and Phillips drive are required. Common install scenarios include securing sheet metal panels, junction box covers, equipment brackets, and control board mounting hardware. The 1/4-20 UNC thread is one of the most common coarse-thread sizes in North American trade work, making this screw a standard service-truck stock item for HVAC technicians, electricians, and plumbers.

Key Features

• 1/4-20 UNC coarse thread for broad compatibility with standard tapped holes and nuts
• Truss head profile distributes load over a wide bearing surface, reducing pull-through risk
• Phillips drive for use with standard Phillips screwdrivers and power bits
• Grade 2 steel construction provides adequate strength for general-purpose fastening
• Zinc finish offers basic protection against oxidation in dry indoor environments
• Inch measurement system; length measured under head at 1/2 inch

Compatibility

Designed for general-purpose use in any application requiring a 1/4-20 UNC truss head Phillips machine screw with 1/2 inch length under head.

Installation Notes

Installation does not require a licensed trade professional, but fastener selection should be verified against the host material and load requirements before use. Always ensure the mating thread or nut is also 1/4-20 UNC before driving. Power down or de-energize any equipment before servicing panels or enclosures secured by these screws. Do not overtighten in thin sheet metal or plastic substrates where thread strip-out is a risk.