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The VALUE COLLECTION MPPI0-400180-100BX is a 4-40 x 3/16 inch pan head Phillips machine screw manufactured from Grade 2 steel with a zinc-plated finish. Designed for use in light-duty fastening applications, this screw follows Unified National Coarse (UNC) thread standards and features a pan head profile that sits low against the mating surface. Length is measured under the head at 3/16 inches. The zinc plating provides basic corrosion resistance for general indoor mechanical assemblies. This box contains 100 screws, making it suitable for production runs, service kits, or bench stock replenishment.
These screws are used across a broad range of light mechanical assembly applications including electrical enclosures, HVAC control boards, small appliances, electronic equipment, and sheet metal panel fastening. The 4-40 thread size is one of the most common small-diameter machine screw sizes in North American trade and industrial use. They are installed by electricians, HVAC technicians, and general assemblers where a standard Phillips driver and a 4-40 tapped hole or nut is present.
Designed as a standard 4-40 UNC machine screw for use wherever a 4-40 tapped hole, threaded insert, or hex nut is present in light mechanical, electrical, or electronic assemblies.
Install using a size 1 Phillips screwdriver. Do not overtighten Grade 2 steel screws in soft materials such as aluminum or plastic, as thread stripping can occur. Ensure the mating hole is correctly tapped to 4-40 UNC before driving. For electrical enclosures, follow applicable NEC guidelines for panel assembly and hardware fastening.
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