The SQ HEAD SET SCREW 1/4-20 X 3/4 from DOUBLE HH MANUFACTURING is a versatile fastening solution designed for various applications. This pack includes 100 pieces, each measuring 1/4-20 in thread size and 3/4 inch in length. Made from high-quality steel, these set screws offer excellent strength and durability, ensuring reliable performance in mechanical assemblies. The square head design allows for easy installation and removal, making them ideal for use in machinery, automotive, and DIY projects. These screws are essential for maintaining the integrity of your mechanical systems.