Compression Spring Conical 302 Stainless Steel Finish Plain Overall Length 1 In Wire Type Round Wire Dia 0.042 In End Type Squared and Not Ground Large Outside Dia 0.720 In Small Outside Dia 0.281 In LD @ 50% FREE LENGTH 4.19 Lbs LOAD @ SOLID 7.67 Lbs Spring Rate 8.37 Lbs/In Meets/Exceeds ASTM A313