... need to pull out your wrench to tighten the pan bolt, the fixture will stay securely held. The Mega-Clamp fits ... a 2" pipe without having to buy a special, expensive, “Heavy Duty Clamp” The Mega-Clamp fits the larger pipe, standard.Additional ... options. Stainless Steel Hardware, 2", 2.5", 3" bolts, zinc bolt, Atlas threads. Please note the appropriate part # below.The old ...