GIRDER & WIDE FLANGE BEAM CLAMP Clamp Is Designed For Easy Handling Of Wide Flange Beam Sections. This clamp is an efficient tool to effectively lift awkward plate girders and wide flange structural beams vertically. Girder clamp is easy to operate and requires minimal maintenance. Clamp has a simple screw-spindle design that ensures positive grip for maximum safety, and left-hand or right-hand thread screw allows for rapid clamping and unclamping. Jaw opening adjusts to a wide range of beam types and flange widths. Heavy duty steel construction with a durable enamel finish. Meets both ASME B30.20 and ASME BTH-1 standards. Note: Clamp is designed for vertical lifting only. Note: For added stability when handling longer loads, use in pairs with a Spreader Beam (sold separately).