Compression Spring Medium Duty Color Silver Standard Steel Finish Oil Overall Length 1-3/4 in Outside Dia 3/4 in Wire Type Round Wire Dia 0.125 in End Type Squared and Ground For Hole Size 7/8 in For Rod Size 3/8 in Compressed Length 1.063 in Load (Lbs.) 77.35 Deflection @ Load 0.35 in Spring Rate 221.00 lb./in Meets/Exceeds ASTM A227/A228 and AMS 5112 Package Quantity 3