Crafted for durability and reliability, this pack of zinc-plated steel hex tap bolts is perfect for a variety of fastening applications. Each bolt measures 1/4 inch in diameter and extends to a length of 3-1/2 inches, making them ideal for projects requiring precise length and strength. With a convenient pack of 100, you'll have plenty of bolts on hand for any large-scale or repetitive task, ensuring that you can complete your work efficiently and effectively.