Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 3/8 In Wire Type Round Wire Dia 0.045 In End Type Squared and Not Ground Large Outside Dia 0.600 In Small Outside Dia 0.250 In LD @ 50% FREE LENGTH 6.09 Lbs LOAD @ SOLID 9.25 Lbs Spring Rate 32.49 Lbs/In Meets/Exceeds ASTM A313