Mitee-Bite® Dyna-Force® Clamp 25Mm Diameter, M8 Drive Screw, Smooth Clamping Jaw, 2,600 Lbf (11,565 N.) Holding Force. The Majority Of The Dyna-Force® Clamp Is Below The Surface Of The Fixture Which Provides Excellent Clamp Support And Makes For A Very Low Profile. The Clamp Jaw Slides On An Angle For Positive Downforce. Incredible Clamping And Hold Down Power. Low Profile, Compact Design. 17-4 Ph Stainless Steel. The Clamp Jaw Is Available With Smooth Or Serrated Jaws. Clamp Comes Assembled With Alloy Steel Screw. The Support Surface Of The Dyna-Force® Clamp Can Be Installed Flush With The Fixture Plate Or Raised To Hold The Workpiece Off The Fixture, Enabling Drill-Through. Mitee-Bite® Part #28320