NotcHead Air Line Clamps are upgraded from metal line clamps to NotcHead Line Clamps; the easiest way to secure lines and eliminates the need for Z-bends to fit fittings. Quick, secure, professional centered set screw means you drill and tap holes right where you want your line to go. Lines easily "snap" with a push of your finger and eliminates the need for Z-bends to fit fittings. After the line is installed, the set screw is completely hidden, giving a sleek, professional look. A great solution for mounting air lines. Keep lines off the surface, eliminates the appearance of chafing that can cause leaks. Capable of running parallel lines, these clamps take your project to the next level. Made from high strength Acetal Copolymer plastic, NotcHead Line Clamps are heat resistant and have a melting point of 335°F, have low sensitivity to moisture, are very wear resistant, and easy to paint parts on. The NotcHead Air Line Clamp Building Kit is the easy way to have everything you need for your project in one box. This kit includes 40 clamps, nuts, fasteners, and self-drilling screws. NotchHead Air Line Clamp. Includes necessary hardware to assemble. Building Kit Includes 1/4 inch Clamps (18 pcs) 3/8 inch Clamps (18 pcs) 1/2 inch Clamps (18 pcs) Made in the USA.