Compression Spring Medium Duty Color Silver Standard Steel Finish Oil Overall Length 1-1/4 in Outside Dia 9/32 in Wire Type Round Wire Dia 0.040 in End Type Plain For Hole Size 25/64 in For Rod Size 1/8 in Compressed Length 0.640 in Load (Lbs.) 4.38 Deflection @ Load 0.25 in Spring Rate 17.50 lb./in Meets/Exceeds ASTM A227/A228 and AMS 5112 Package Quantity 12