Value Collection 584190PS 4-40 X 1/4 Truss Head Slotted Screw

Product Description

The VALUE COLLECTION 584190PS is a 4-40 x 1/4 inch truss head machine screw in slotted drive configuration. Built from steel with a zinc finish, it meets ASME B18.6.3 and SAE J82 dimensional and material standards. The truss head profile offers a wide, low-profile bearing surface that distributes clamping load across a broader area than a standard pan or round head. Length is measured under the head at 1/4 inch. This fastener is suited for use by electricians, HVAC technicians, sheet metal workers, and general assembly trades where a small-diameter, fine-thread machine screw is required.

The 584190PS is used in light-duty mechanical and electrical assembly applications where a 4-40 unified fine thread is specified. Common installation scenarios include securing control boards, enclosure panels, terminal blocks, and small component brackets in HVAC equipment, electrical panels, and instrumentation. The slotted drive works with a flat-blade screwdriver, making it practical in confined spaces where access for larger drive tools is limited. Sold in a package quantity of one with a minimum order quantity of 100 units.

Key Features

• 4-40 unified thread for fine-thread engagement in light-gauge materials
• Truss head provides wide bearing surface and low-profile installation
• Slotted drive compatible with standard flat-blade screwdrivers
• Zinc finish provides basic corrosion resistance for indoor and sheltered applications
• Conforms to ASME B18.6.3 and SAE J82 standards for dimensional consistency
• Steel construction for reliable tensile strength in small-fastener applications

Compatibility

Designed as a standard 4-40 x 1/4 inch truss head machine screw for general mechanical and electrical assembly applications requiring an ASME B18.6.3 compliant fastener.

Installation Notes

Installation is typically performed by electricians, HVAC technicians, or mechanical assemblers using a flat-blade screwdriver sized to the slotted head. De-energize any electrical assembly before installing or removing fasteners on control boards or panel components. Avoid overtightening in thin sheet metal or plastic bosses, as the 4-40 thread can strip easily under excessive torque. Follow applicable NEC or equipment manufacturer guidelines when fastening components inside electrical enclosures.