Tightener Shaft Arm Length to Hole Center Not Applicable For Shaft Thread Size Not Applicable Includes Tightener Shaft Not Applicable Mount Base Length Not Applicable Mount Base Width Not Applicable Mount Hole Diameter Not Applicable Overall Length 3.38 in Shaft Diameter 1 in Shaft Length 2.125 in Shaft Thread Size 3/4 In.-10 Thread Length 7/8 in Adjustment Type Not Applicable Arm Length to End Not Applicable Compatible Tightener Shaft Grainger Part Number Not Applicable