For winning performance products, don't look any further than AFCO Racing. AFCO Swaged Steel Tubes are formed using .095" wall DOM material that is yellow zinc-plated for increased part life. They have a deep knurl for easy length adjustments. AFCO tubes have a consistent wall thickness within +/-.001" that allows better thread engagement. 3/4" and 5/8" threaded tubes are available for all popular applications. AFCO Swaged Steel Tubes are the best built tubes for strength and weight savings!