S & G Tool Aid 63000 Strutter 2 MacPherson Strut Coil Spring Compressor Tool Strut Coil Spring Compressor Tool Set Includes/Features (2) Chromium Molybdenum Alloy Steel Cold Headed Bolt (1) Complete Instruction (1) Safety Kit (1) Acme Thread Grade 5 Nut Used On Macpherson Strut Imported Vehicle Impact Wrench On/Off Car Features With Acme threads and economically priced. Quickly and easily work on the MacPherson Struts found on virtually all modern domestic and imported vehicles. Consists of two cold headed bolts made of chromium molybdenum alloy steel. The nuts are Grade 5. Use with impact wrench ON or OFF the car. Contains complete instructions and safety kit. Specifications Manufacturer: S & G Tool Aid Corp. Additional Information: Used On Macpherson Strut Imported Vehicle Impact Wrench On/Off Car Manufacturer Part Number: 63000 Harmonization Code: 82055990