Vertical-Handle Toggle Clamp: Open Arm, Flanged Base Holding Capacity: 1000 lbs. Accepts any 1/2-13 or M12 spindle. Supplied with (2) CL-1213-TW flanged washers. Clamp body &gt; 1008, 1010, and/or 1018 steel, zinc plated clear chromate. Rivets &gt; 400-series stainless. Handle &gt; Vinyl. DFARS and RoHS compliant. Made in USA.