SAC (Screw-Adjusted Cam) plate clamp, No. SAC-1 Recommended for turning plates from horizontal to vertical As well as through a 180° arc The convex, serrated cam swivels on a ball joint So that the area of cam engagement increases as load increases Drop forged body and shackle Clamps 100% Proof Tested, a Certificate of Test supplied with each clamp Note: SCREW NEEDS TO BE HAND TIGHT ONLY! DO NOT OVERTIGHTEN. Order unit is "Each"