Extension Spring, Utility, High Carbon Steel, Zinc Plated, End Type Crossover Center Loops, Overall Length 1 3/4 In, Outside Dia 3/8 In, Wire Dia 0.048 In, Load 9.54 Lbs, Deflection @ Load 0.74 In, Spring Rate 9.69 Lbs/In, Meets/Exceeds ASTM A227, Package 3