1、Premium Material: Double hole alignment pin is made of aluminium with an anodised surface for extra durability and longer life. Precision machined threads can seamlessly align with pipe flanges 2、Function: If you are working on a piping project and need a pair of double hole pins to align the flanges. Our double hole pins are fit for 0.5 to 14in 150LB flanges. 3、Easy to Use: The flange alignment pin set is designed for quick and easy use, ergonomic design, ensures comfortable handling, making the alignment process smooth and hassle free. 4、Space Saving: The flange alignment pin set is constructed with lightweight materials, won't take up much space in your toolbox, making it easy to store and carry around. 5、Wide Application: 2 hole flange pins can work under 150 psi working pressure, widely used for pipe flanges of auto parts ships and large machinery.