Compression Spring Precision High Carbon Steel Music Wire Finish Plain Overall Length 1 1/2 In Outside Dia 0.300 In Wire Type Round Wire Dia 0.045 In End Type Closed and Ground Compressed Length 0.743 In Load 14.04 Lbs Deflection @ Load 0.54 In Spring Rate 26 Lbs/In Meets/Exceeds ASTM A228 Package 5