Punched angle consists of 2″ or 3″ wide (each leg) of perforated bar with round holes for 1/2″ bolts and square holes for 1/4″ carriage bolt or machine screw. They may also be ordered punched on one leg only. Punched angle is available in aluminum, hot dipped galvanized steel, stainless steel or fiberglass and in 10 ft or 20 ft lengths. Angles when combined with corresponding fittings create protective instrument support systems for single tube, multi-tube and electronic cable in marine and industrial environments. Manufactured in the USA.