Flat-Cushion Spindles-Quick AdjustingThis Flat-Cushion Spindle includes two knurled nuts, instead of hex jam nuts, for convenient hand tightening. Use for quick spindle adjustment in applications where high-torque tightening with a wrench is not required. Molded neoprene tip provides medium clamping force with some compensation for part-size variation. Also provides scratch-free clamping. Fully threaded for maximum adjustment range.Application InformationMaterialItemMaterialHeat TreatFinishDFARSRoHSSpindleMild steel-Zinc Plated Clear Chroamte, with molded-on neoprene cushion, durometer hardness 70 shore A, operating temperature range -40°F to 220°F.✔✔Knurled Nut1215 Steel-Steel Black Oxide✔✔Knurled Check Nut1215 Steel-Black Oxide✔✔Parts SpecificationA ThreadBC Diameter (Inch)D Diameter (Inch)E3/8-163-9/167/80.560.84