Value Collection R63094062 Binding Head Machine Screw 4-40

Product Description

The VALUE COLLECTION R63094062 is a 4-40 x 1/4 inch binding head machine screw designed for general-purpose fastening applications. Manufactured from brass with a bright uncoated finish, it features a slotted drive and a binding head profile that provides a low-profile clamping surface suited to thin-panel and terminal-block assemblies. The thread is 4-40 UNC, measured under the head at 1/4 inch. Brass construction resists corrosion and eliminates concerns about galvanic incompatibility in non-ferrous assemblies. This screw is a staple fastener for electrical enclosures, instrumentation panels, and light mechanical assemblies handled by electricians, electronics technicians, and HVAC control-board service personnel.

This screw is used in residential and commercial applications wherever a small-diameter, fine-pitch UNC fastener is required. Common install scenarios include securing terminal strips, binding posts, and cover plates inside electrical panels and control enclosures. The binding head style distributes clamping load over a wider area than a pan head, making it well suited to soft substrates and printed circuit board standoffs. No specific brand or system compatibility is stated by the manufacturer for this fastener.

Key Features

• 4-40 UNC thread form for compatibility with standard tapped holes in electrical and instrumentation hardware
• Binding head profile provides wide, flat clamping surface for secure panel and terminal fastening
• Slotted drive accepts standard flat-blade screwdrivers for straightforward installation
• Brass material offers corrosion resistance and non-magnetic, non-sparking properties
• Bright uncoated finish maintains dimensional accuracy and suits applications requiring electrical conductivity through the fastener
• Length measured under head at 1/4 inch for precise depth control in shallow tapped assemblies

Compatibility

Designed as a standard 4-40 UNC machine screw suitable for any application requiring a binding head slotted fastener in that thread size. No specific model or system compatibility is stated in the product data.

Installation Notes

Installation is performed with a flat-blade screwdriver sized to the slot width; an undersized blade risks cam-out and slot damage in brass. De-energize any electrical enclosure and follow applicable NEC lockout/tagout procedures before installing or removing fasteners inside live panels. Do not overtighten brass fasteners, as brass is softer than steel and threads can strip at lower torque than comparable steel screws. Verify the mating tapped hole is clean and free of debris before driving to prevent cross-threading.