Compression Spring Heavy Duty Color Dark Gray Music Wire Finish Plain Overall Length 5/16 in Outside Dia 0.088 in Wire Type Round Wire Dia 0.008 in End Type Squared Compressed Length 0.073 in Deflection @ Load 0.18 in Spring Rate 2 lb./in Meets/Exceeds ASTM-A228 AMS 5112 Package Quantity 10