Details: * brand new and excessive quality.*Material: carbon steel*Color: Black*Size: M8X18mm (As photograph show)*High energy and hardness.*Not easy to rust.*Convenient to use.Package Contents:5*ScrewNote:1.The real coloration of the item may be slightly varied from the images proven on web page caused by many factors akin to brightness of your monitor and lightweight brightness.2.Please enable slight handbook size deviation for the data.