4-40 x 3/8 Slotted Pan External Sems Machine Screw Fully Threaded Zinc 4-40 It has a square drive

It has a square drive

The hex head design allows for easy installation and removal

#4 External Internal Combination Tooth Lock Washer Zinc

The 5/16-18 thread size and 3/4-inch length make it suitable for a variety of projects

providing ample strength and holding power

4-40 x 3/8 Slotted Pan External Sems Machine Screw Fully Threaded Zinc 4-40 It has a square driveThis 4 40 x 3 8 Slotted Pan External Sems Machine Screw is a fully threaded screw made of zinc plated steel. It has a slotted pan head and a sharp point. The screw is designed for use in a variety of applications, including fastening metal, plastic, and wood. It is also commonly used in electrical applications. The zinc plating provides corrosion resistance and helps to prevent rust.