Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 3/4 In Wire Type Round Wire Dia 0.035 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.438 In LD @ 50% FREE LENGTH 1.62 Lbs LOAD @ SOLID 2.94 Lbs Spring Rate 4.33 Lbs/In Meets/Exceeds ASTM A313