Specification Brand : Carr Lane Manufacturing Label : Carr Lane Manufacturing Manufacturer : Carr Lane Manufacturing MaterialType : Clamp body > 4135 steel, heat treated, black oxide finish. Socket-head cap screw > Steel, black oxide finish. Spring > Spring steel, black oxide finish. DFARS and RoHS compliant. PartNumber : CL-MF40-5013 ProductGroup : Home Improvement ProductTypeName : HARDWARE_CLAMP_VISE Publisher : Carr Lane Manufacturing SmallImage_Height : 75 SmallImage_URL : https://m.media-amazon.com/images/I/310ytCKB5ML._SL75_.jpg SmallImage_Width : 75 Studio : Carr Lane Manufacturing Title : CL-MF40-5013 Carr Lane Manufacturing Hook Clamp, Tapped Long Arm: Thread 1/2-13