Bonus #4  (2 points) _____________ is almost pure iron.  It has little tendency to dissolve carbon when carbon is added. Therefore, little carbon is present.

it’s length is measured including the headit is often used as a pivot pointit is always as strong as a grade 8 fastenerit is used when there is little clearance flat head bolt shoulder bolt socket head cap screw (Allen bolt) low head bolt

Bonus #5  (2 points)   Recycled scrap is a major source of copper metal.  Over ________% of the copper in products made today has been recycled from scrap.

Cold Working is

A grade five hex head cap screw contains  _______(number) lines on its head indicating the grade.

The material that surrounds and binds together fibers in a composite material is called the _________.

Brass contains what other metal along with copper

Bonus #1   __________________  ___________________  are chemical compounds made up of two or more metals that exhibit different properties than the original metallic elements.   2 point bonus

After quenching from high temperature, austenite becomes martensite, a different crystalline form of steel.

The use of a flat head screw requires what type of hole to be machined for it to fit in?