1/2"-13 X 3-1/2" Machine Screws | Flat Head | Slotted Drive | Steel Zinc Plated (25/Pkg.)

Machine Screws Slotted Flat Steel Zinc 1/2-13 x 3-1/2 are engineered for secure, durable fastening in metal-to-metal assemblies. These slotted machine screws feature a robust steel construction with a corrosion-resistant zinc plating, making them well-suited for a wide range of environments and applications.

• Size: 1/2-13 x 3-1/2 inches (1/2" diameter, 13 threads per inch, 3-1/2" long)
• Drive Type: Slotted for standard flat-head screwdrivers
• Material: Steel
• Finish: Zinc plating for corrosion resistance
• Applications: Ideal for fastening metal panels, housings, enclosures, and other sheet-metal or equipment assemblies

These machine screws provide a reliable, vibration-resistant hold with precise threading, supporting strong assemblies in both indoor and light outdoor settings. Pair with the appropriate nuts or tapped holes sized for 1/2-13 threads to complete your installation.