It's springtime! Time to start working on your project car, learn a new wrenching skill, discover what everything is under the hood (and how it works), or just spruce up your daily driver. All month, ...

Did you ever notice that highly stressed fasteners like rod, main, and head bolts don't use any locking devices? These critical fasteners stay tight by being stretched-they work like clamps. If a ...

Have you noticed many inner tubes now come with two valve nuts? This video looks at where to fit them and why recommendations differ. Key points covered: - Factory example: a Honda CRF300L had one nut ...

The free-spinning locknut turns freely onto a bolt until seated against a base. Further tightening of the nut produces locking action. Operating principles of all these nuts are similar. When the ...