The Hillman 90419 machine screw is a durable, zinc‑plated steel fastener designed for secure metal‑to‑metal connections in mechanical, construction, electrical, and general hardware applications. Built with a 1/4‑20 coarse thread and a full 3‑inch length, it provides extended reach for assembling brackets, mounting components, working with spacers, joining thicker materials, and fastening into tapped holes or paired nuts.
The screw features a round head that distributes pressure evenly and helps prevent surface damage during tightening. Its combination slotted/Phillips drive allows installation using either a flat‑blade screwdriver or a Phillips driver, increasing flexibility on the job.
Finished with zinc plating, the screw resists corrosion and is suitable for both indoor and outdoor projects. Packaged in a 100‑count box, this fastener is an excellent choice for maintenance departments, fabrication environments, contractors, and hardware inventory stocking.
Key Features
1/4‑20 coarse thread for strong, reliable fastening
3-inch length ideal for deep fastening applications and thicker assemblies
Round head provides smooth seating and material protection
Slotted/Phillips combination drive for versatile tool compatibility
Zinc-plated steel construction for strength and moderate corrosion resistance
100-piece box for bulk use and stocking purposes
Specifications
Specification
Detail
Model Number
90419
Thread Size
1/4‑20 UNC
Length
3 inches
Head Type
Round
Drive Type
Combination (Slotted + Phillips)
Material
Steel
Finish
Zinc‑plated
Thread Style
Coarse, fully threaded
Package Quantity
100 screws
Applications
Machinery and equipment assembly
Mounting brackets, panels, plates, and hardware fixtures
Electrical, HVAC, and industrial installations
Fabrication, repair shops, and MRO environments
Any project requiring long‑reach, corrosion‑resistant machine screws
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