Engineered for precision and dependable clamping, our Square Head Set Screws in Case Hardened Steel (Flat Point) measure 5/16-18 x 1-1/2. Designed to grip securely in collars, pulleys, gears, and machine components, these screws pair a square head with a flat seating point for a flush, backlash-resistant fit.

Key features

• Head style: Square head for turning with a wrench or pliers, delivering strong torque transfer and reduced cam-out.
• Point: Flat point for positive, flush seating in through-holes and mating surfaces.
• Material & finish: Case hardened steel for increased surface hardness and wear resistance.
• Thread size: 5/16-18 UNC (coarse thread) for broad compatibility with common industrial components.
• Length: 1-1/2 inches overall to fit thicker assemblies.
• Applications: Ideal for securing collars, pulleys, gears, bushings, and other assemblies where a fixed position is required.

Why choose these set screws?

Case hardened steel provides a durable, wear-resistant profile, while the flat point helps prevent surface marring and maintains precise alignment. The standard 5/16-18 UNC thread size ensures compatibility with a wide range of equipment, making replacement and procurement straightforward for industrial setups.

Specifications at a glance

• Head type: Square
• Drive: External square head for wrench/pliers
• Point: Flat
• Material: Case hardened steel
• Thread: 5/16-18 UNC
• Length: 1-1/2 in