Compression Spring Heavy Duty Color Dark Gray Music Wire Finish Plain Overall Length 5/8 in Outside Dia 1/4 in Wire Type Round Wire Dia 0.026 in End Type Squared and Ground Large Outside Dia 0.360 in Small Outside Dia 0.125 in Compressed Length 0.208 in Deflection @ Load 0.30 in Spring Rate 13 lb./in Meets/Exceeds ASTM-A228 AMS 5112 Package Quantity 10