Amazon.com: I-Beam Heavy Bag Hanger; Steel Beam Clamp for Heavy Bag. Suitable for I-beams with Bottom Width 2.5" 6.3cm~7.5" 19cm; Can Withstand 450 Lbs of Gravity : Sports & Outdoors
Superstrut 1/2 in. Strut Beam Clamp - Silver (Strut Fitting) Z503-5 - The Home Depot
610 Beam Clamp: Connects to I Beam | Star Hanger Systems
610 Beam Clamp: Connects to I Beam | Star Hanger Systems
I-Beam Clamp Mounting Bars - Strong Poles
Amazon.com: 8 Pcs Malleable Iron Universal Beam Clamps Malle I Beam Clamp, Electrogalvanized Beam C Clamp Max Jaw Opening 1 Inch (25mm), Supports 0.5 Inches Rods, Each Max Load 220lb : Industrial & Scientific
MAGNA Beam Clamp Adjustable - Boise Rigging Supply