Compression Spring Precision High Carbon Steel Music Wire Finish Plain Overall Length 7/8 In Outside Dia 0.480 In Wire Type Round Wire Dia 0.055 In End Type Closed and Ground Compressed Length 0.373 In Load 15.58 Lbs Deflection @ Load 0.41 In Spring Rate 38 Lbs/In Meets/Exceeds ASTM A228 Package 5