• 7/8"-9x4-1/2" Plain Flat Head Machine Screw

7/8"-9x4-1/2" Slotted Flat Countersunk Head Machine Screw Plain Finish

Part Number: 7/89X41/2FHMS-PLAIN
BreakpointPriceDiscount
15 - 59$7.192317.5%
60 - 119$5.753834%
120+$5.230840%
240+$4.794945%
Order in Blocks of: 15
$8.72
QTY:
  

PRODUCT DETAILS

7/8"-9x4-1/2" Slotted Flat Countersunk Head Machine Screw with Plain Finish

SPECS
  • Size: 7/8"-9
  • Length: 4-1/2"
  • Plating: Plain Finish
  • Thread: UNC

Low Carbon Flat Head Slotted Machine Screws – Reliable, Flush-Mount Fastening Solutions

Low Carbon Flat Head Slotted Machine Screws with a plain finish are a dependable choice for general-purpose fastening across industrial, commercial, and residential applications. Designed for strength, clean appearance, and easy installation, these machine screws deliver consistent performance where a smooth, flush surface is essential. From light equipment assembly to cabinetry and metal fabrication, they remain a staple fastener in maintenance and production environments.

Durable Low Carbon Steel Construction

Manufactured from low carbon steel, these flat head machine screws provide an excellent balance of tensile strength and ductility. The lower carbon content reduces brittleness, helping prevent cracking under stress while maintaining reliable clamping force. This makes them ideal for applications requiring moderate strength without sacrificing flexibility. Low carbon steel fasteners are widely used in manufacturing, HVAC, electrical panels, and general repair work.

Flat Head Design for a Flush Finish

The precision-machined flat head is engineered to sit flush with countersunk surfaces. Once installed, the screw head aligns evenly with the material, creating a smooth, snag-free finish. This design is particularly valuable in woodworking, sheet metal work, and assemblies where appearance and safety matter. A flush-mount machine screw also helps reduce interference in moving parts or tight clearances.

Traditional Slotted Drive for Easy Installation

Featuring a classic slotted drive, these screws are compatible with standard flathead screwdrivers. The simple drive style allows for quick installation and removal, making them convenient for routine maintenance, adjustments, or equipment servicing.

Plain Finish for Versatile Applications

The plain finish offers a clean, uncoated surface suitable for indoor environments. It also allows for secondary treatments such as painting, plating, or coating based on specific project requirements.

Available Fractional Sizes

Common thread diameters include #4, #6, #8, #10, and 1/4", with lengths typically ranging from 1/4" to 2". This range ensures compatibility with various material thicknesses and fastening needs.

Low Carbon Flat Head Slotted Machine Screws provide cost-effective, versatile, and professional-grade fastening performance across countless applications.

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