Description
Polini Evo AM6 cylinder stud bolt
Polini cylinder studs M7 x 138 for Polini Evolution cylinders for Minarelli.
4x stud bolts M7 x 138 mm including nuts and washers.
Stud bolts
In simple terms, a stud bolt is a type of bolt with a thread on both ends. One thread is screwed into e.g. the housing, the other thread is used to fasten another component.
There are many bolts and studs with many different functions in an engine. Studs are screwed into a cast piece and another part is attached to it by securing it with a nut.
Useful note: It is advisable not to use threadlocker. To install studs, the "nut / locknut" method must be used (a nut locked against another nut allows the stud to be pulled into the desired part).
If you have the manufacturer's information, you can tighten the studs to the recommended torque.
Stud Bolts in our store:
In our store you will find mainly cylinder studs and exhaust studs for scooters, 50cc motorcycles and motocross machines.
Make sure you choose the right stud bolts for your vehicle by selecting the right model in the configurator or by measuring the pitch and length of the studs.