Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 5/8 In Wire Type Round Wire Dia 0.035 In End Type Squared and Not Ground Large Outside Dia 0.600 In Small Outside Dia 0.281 In LD @ 50% FREE LENGTH 2.41 Lbs LOAD @ SOLID 4.28 Lbs Spring Rate 7.7 Lbs/In Meets/Exceeds ASTM A313