Value Collection MPPI0-401250-100BX 4-40 Pan Head Phillips Screw

Product Description

The VALUE COLLECTION MPPI0-401250-100BX is a 4-40 UNC machine screw with a pan head and Phillips drive, sold in a box of 100 fasteners. The screw measures 1.25 inches in length under the head and is manufactured from Grade 2 steel with a zinc-plated finish for basic corrosion resistance. The pan head profile keeps a low, rounded silhouette, making it well suited for general mechanical assembly where clearance above the fastener is limited. These screws are installed without a washer. Electricians, HVAC technicians, panel builders, and general assembly technicians routinely use 4-40 Phillips machine screws to secure enclosures, terminal strips, and light-duty brackets.

This size and thread pattern is widely used in light-duty mechanical and electrical assemblies. The 4-40 UNC thread is a standard coarse-thread designation common in control panels, junction boxes, electronic enclosures, and small equipment housings. The zinc coating provides a functional level of corrosion protection suited for dry indoor environments. The box quantity of 100 units supports production-line use, service van stocking, and bench repair operations where fastener turnover is frequent.

Key Features

• 4-40 UNC thread for compatibility with standard tapped holes in control and enclosure hardware
• 1.25-inch length measured under the head for precise fit in layered assemblies
• Pan head profile provides a wide bearing surface without sharp edges
• Phillips drive works with standard No. 1 Phillips screwdrivers and bits
• Grade 2 steel construction with zinc-plated finish for basic corrosion resistance
• Packaged in quantities of 100 for shop stocking and repeat-use applications

Compatibility

Designed for use in any application requiring a 4-40 UNC threaded machine screw with a pan head and Phillips drive, including electrical enclosures, control panels, and light mechanical assemblies in indoor environments.

Installation Notes

Install with a No. 1 Phillips screwdriver or matching power-bit to avoid cam-out and fastener damage. Confirm the mating tapped hole or nut is 4-40 UNC thread before installation. De-energize any electrical enclosure or panel before inserting fasteners near live conductors, following applicable NEC requirements. Do not overtorque; Grade 2 steel has lower tensile strength than higher-grade alloys and the small thread cross-section is vulnerable to stripping.