The Terrier TSU Vertical Clamp is designed for vertical, horizontal and sidelong lifting, turning and / or positioning of steel plates and beams with a max hardness of 37 HRC / 345 Hb. Because the lifting shackle has an incorporated hinge, this clamp is able to be used safely in multiple lifting angles. A safety mechanism and lock ensures the clamp stays closed and engaged during use. Each clamp has the lifting capacity and jaw opening clearly engraved on its body. Each clamp is made from quality steel components and is backed by great engineering and a 5 Year Warranty.