Polyurethane Flat CushionsPolyurethane cushions are tougher and slightly harder than standard neoprene cushions, ideal when greater clamping force is required while still providing scratch-free clamping and some compensation for part-size variation. Molded-in Stainless Steel insert provides superior thread strength. Ideal for making custom-length Flat Cushion Spindles by inserting a threaded stud (steel or Stainless Steel). Studs can be permanently secured with thread-locking adhesive if desired (an adhesive such as Loctite 263 is suitable for most applications).Application InformationPolyurethane Flat Cushions are ideal for making custom-length clamping spindles.MaterialMaterialHeat TreatFinishDFARSRoHSPolyurethane-durometer hardness 85 Shore A, operating temperature range -65ºF to 200ºF, with molded-in 300-series Stainless Steel insert✔✔Parts SpecificationA ThreadBC Diameter (Inch)D Diameter (Inch)E1/4-200.300.630.410.63