Compression Spring Heavy Duty Color Dark Gray Music Wire Finish Plain Overall Length 2-1/4 in Outside Dia 1/4 in Wire Type Round Wire Dia 0.035 in End Type Squared and Ground Large Outside Dia 0.360 in Small Outside Dia 0.125 in Compressed Length 1.021 in Deflection @ Load 0.87 in Spring Rate 10 lb./in Meets/Exceeds ASTM-A228 AMS 5112 Package Quantity 10