Compression Spring, Heavy Duty, Color Silver, 302 Stainless Steel, Finish Plain, Overall Length 3/4 In., Outside Dia. 5/16 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 0.298 In., Deflection @ Load 0.25 In., Spring Rate 17 lb./in., Meets/Exceeds ASTM-A228, AMS 5112, Package Quantity 10