Features & Materials: Malay steel has higher mechanical properties than gray cast iron, good plasticity and toughness, and has higher strength, hardness and wear resistance. Screw quenching and hardening thread, good process performance, high root strength, high bearing capacity and stronger clamping force Scope of application: auto repair, wood fixing, construction site, carpentry clamping, machine repair. Package include: According to your choice. Please make sure your address 100% right.We will try our best to help you solve the problems. Your satisfaction is very important for us. Due to high volume of daily incoming emails and time zone difference, please allow 24 hours for us to reply. For the funcitonal products in our shop, we make sure that the functions are the same as description, but the actual color and shape may looks a little different from pictures because of the technical improvement and manufacturing variance.