Compression Spring Precision High Carbon Steel Music Wire Finish Plain Overall Length 1 1/2 In Outside Dia 0.480 In Wire Type Round Wire Dia 0.038 In End Type Closed and Ground Compressed Length 0.315 In Load 5.58 Lbs Deflection @ Load 0.93 In Spring Rate 6 Lbs/In Meets/Exceeds ASTM A228 Package 5