Value Collection 0404MPR 4-40 X 1/4 in Round Head Phillips Screw

Product Description

The VALUE COLLECTION 0404MPR is a 4-40 unified coarse thread machine screw designed for general-purpose fastening in light-duty assemblies. It features a round head profile and a Phillips drive, allowing installation with standard Phillips screwdrivers or bits. The screw is manufactured from steel with a zinc finish that provides basic corrosion resistance for indoor and sheltered applications. At 1/4 inch length under head, this fastener suits thin-panel and close-tolerance assemblies. It conforms to ASME B18.6.3 and SAE J82 standards. Installation is typically performed by mechanical assemblers, maintenance technicians, or electricians working on panel-mounted hardware and light electrical enclosures.

This screw is suited for residential and commercial applications where a small-diameter, fine-pitch machine screw is required. Typical use cases include securing terminal blocks, small enclosure panels, electronic housings, control box covers, and similar sheet-metal or thin-material assemblies. The 4-40 thread size is a common standard in electrical and HVAC control panel work. Sold individually in package quantity of 1, with a minimum order quantity of 100 units per order.

Key Features

• 4-40 unified coarse thread for reliable engagement in tapped holes and threaded inserts
• Round head profile provides a low-profile, smooth bearing surface
• Phillips drive compatible with standard Phillips No. 1 bits and screwdrivers
• Zinc finish offers basic corrosion resistance for indoor and protected environments
• Meets ASME B18.6.3 and SAE J82 dimensional and material standards
• No washer included; designed for direct head-to-surface clamping

Compatibility

Designed as a standard 4-40 machine screw replacement or new-installation fastener for applications requiring an ASME B18.6.3 and SAE J82 compliant round-head Phillips screw in a 1/4 inch under-head length.

Installation Notes

Install using a Phillips No. 1 screwdriver or bit. Verify the mating hole is properly tapped to 4-40 specifications before driving to avoid cross-threading. Do not overtighten; small-diameter machine screws are susceptible to thread stripping in soft materials. Ensure the assembly is de-energized before fastening screws in live electrical enclosures, per applicable NEC guidelines.