Minimum overhead clearance is required by this low silhouette series. All Models furnished with 1/4-20 bonded neoprene-tipped spindle assembly, washers for U bar Models, or bolt retainer for solid bar Models. Series 215 clamps are less than 1 1/2 in overall height when closed. Red vinyl handle grip provided on non-stainless steel Models. Stainless steel Models supplied with hex-head spindle assembly.