Item Floor Mount Vibration Isolator Isolator Type Spring Capacity Range 1240 to 1650 lb Deflection 0.75 in to 1.00 in Height 5 5/8 in Width 2 3/4 in Spring Color Black Bolt Size 1/2 x 4 in Dimension A 5.75 in Dimension T 1/2 in Dimension SW 7/16 in Dimension HCL 6 1/2 in Dimension HCW 1 1/2 in Dimension MBD 3/8 in Dimension SBC 7 1/4 in Dimension H 5 5/8 in