3/4″-10 X 4-1/2″ Machine Screws Flat Head Slotted Drive Plain Steel (25/Pkg.) Mega Sale

Engineered for durability and reliability, our Machine Screws Slotted Flat Plain Steel 3/4-10 x 4-1/2 delivers strong, secure fastening for general-purpose metalwork and equipment assembly. With a slotted drive and a flush, flat-head profile, these screws provide a neat installation and a finished look in tapped holes or mating nuts.

Key features

Size and thread: 3/4-10 UNC (coarse thread) for strong engagement and versatile compatibility

Length: 4-1/2 inches

Drive: Slotted drive for simple, reliable seating with standard screwdrivers

Head style: Flat-head design seats flush in countersunk holes

Material: Plain steel for solid strength

Finish: Plain, uncoated surface; ideal for touch-up painting or welding environments

Usage: Requires a mating nut or threaded hole

Specifications

Diameter: 3/4 in

Thread pitch: 10 TPI (UNC)

Length: 4-1/2 in

Applications

These machine screws are suitable for general mechanical assembly, electrical enclosures, equipment dashboards, cabinetry, and other projects that require a strong, flush-fastening hardware solution. The plain steel construction provides reliable performance in a variety of environments where a non-coated fastener is acceptable or will be finished later.

Installation tips

Tip: Use the appropriate nut or tapped hole and avoid overtightening. Ensure the screw matches the corresponding thread and hole size, and pre-drill if required by your material. For a clean finish, countersink the hole before installation to achieve the flush head appearance.