Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 1/4 In Wire Type Round Wire Dia 0.038 In End Type Squared and Not Ground Large Outside Dia 0.480 In Small Outside Dia 0.218 In LD @ 50% FREE LENGTH 4.75 Lbs LOAD @ SOLID 6.61 Lbs Spring Rate 38.02 Lbs/In Meets/Exceeds ASTM A313