Torque Tap and Die

The bolt i chose is the one on the right with the 1/4 inch diameter.

This shows the bolt being measured for 28 threads per inch.

This shows that I needed a 3 drill bit to prepare for the tapping. 

This shows the hole getting drilled.

This shows the hole getting tapped with the tap drill bit being 1/4 - 28.

This chart shows our bolt needed 45 ft/lbs for its torque.

A picture of the torqueing process.

The final product with all three bolts in the aluminum block.