Meister Beam Clamp Hanger Mount for I-Beams & H-Beams | Meister
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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
Channel-to-Flange Heavy-Duty Beam Clamp - Electro-Galvanized – Fasteners Plus