Best Choice 5/16″-18 X 1-1/4″ Machine Screws Flat Head Six Lobe Drive Steel Zinc Plated (1500/Pkg.)
Original price was: $542.45.$227.83Current price is: $227.83.
Our Machine Screws Flat Zinc Plated Torx Alt 5/16-18 x 1-1/4 in are built for strength, durability, and dependable performance in metal-to-metal assemblies. The flat zinc plating provides excellent corrosion resistance, while the Torx Alt drive delivers high torque transfer with reduced cam-out for fast and easy tightening.
Key specifications
Size: 5/16-18 UNC
Length: 1-1/4 in
Drive: Torx Alt
Finish: Flat zinc plating
Material: Steel
Applications: Suitable for tapped holes or assemblies where a secure machine-screw connection is required in panels, brackets, enclosures, and equipment.
Why choose these screws? They combine a robust general-purpose thread with a corrosion-resistant finish and a Torx Alt drive that resists stripping under heavy use. Whether you’re repairing electronics, assembling machinery, or securing panels, these 5/16-18 x 1-1/4 in screws offer dependable performance and easy installation.





