7/8″-9 X 4-1/2″ Machine Screws Flat Head Slotted Drive Plain Steel (15/Pkg.) Mega Sale

Secure, flush fastenings with our Machine Screws Slotted Flat Plain Steel 7/8-9 x 4-1/2. Built from plain steel for affordability and ease of machining, these slotted machine screws are ideal for metal-to-metal assemblies where a flat, countersunk head is required for a smooth, finished appearance.

Specifications

Size: 7/8-9 x 4-1/2 inches (7/8 inch diameter, 9 threads per inch, 4-1/2 inch length)

Drive Type: Slotted

Head Style: Flat (countersunk) head for flush installation

Material: Plain steel (carbon steel)

Finish: Uncoated

Key Benefits

Strong, reliable fastening suitable for a wide range of metalworking and hardware projects

Slotted drive offers compatibility with traditional screwdrivers and power bits

Flat head provides a flush surface for panels, enclosures, and machinery assemblies

Plain steel design keeps costs lower while delivering durable performance in indoor applications

Applications

Perfect for metal-to-metal assemblies in machinery, equipment, automotive components, enclosures, and general hardware projects where a flush, secure screw is desired.

Installation Tips

Ensure the 9 TPI thread matches your mating part; pre-drill a suitable pilot hole if needed for the material.

Use appropriate lubrication or thread lubricant to ease driving and prevent galling.

For outdoor or damp environments, consider a coated or stainless option to improve corrosion resistance.

Enhance your fastener toolkit with these flat, slotted machine screws in the 7/8-9 x 4-1/2 size for dependable, flush installations across your projects.