Spark Duty™ 400P 400CS Hi Vis C Clamp, Sliding Pin, 4 1 8 in Throat Depth, Gray, 0 in to 6 1 16 in Opening ORS NASCO or hex work Ideal for tightening or hex work Ideal for tightening chemical fluids 3 ply Meltblown (MMM) Polypropylene dimpled construction is designed for general industrial applications Perforations provide cost control and reduce waste by allowing you to use only what you need Options available for heavy or medium weight and flats Acme rolled spindle threads provide continuous smooth operation for faster clamping action and maximum strength Spindles and Perma Pads® are copper plated to provide resistance to welding spatter and corrosion Ideal for industrial welders and steel fabrication Manufactured with drop forged steel for greater strength in standard applications V grooved anvil feature allows secure holding of all materials including rounds