Pyöränpulttijärjestelmässä

Pyöränpultti or wheel bolt is a fastener used to attach a wheel to a vehicle's hub. It is a threaded bolt that passes through the wheel and screws into a threaded hole in the hub or into a nut that is permanently attached to the hub. The head of the pyöränpultti is typically designed to seat firmly against the wheel surface, providing a flush finish and ensuring the wheel is held securely.

The material used for pyöränpultit varies, but commonly includes hardened steel to withstand the significant forces involved in securing a wheel. They are designed to resist vibration and stress, preventing the wheel from becoming loose during operation. The length and thread pitch of a pyöränpultti are critical specifications that must match the requirements of the specific vehicle and wheel combination. Incorrect pyöränpultit can lead to improper wheel seating, vibration, and potentially dangerous wheel detachment.

When changing a wheel or tire, it is important to use the correct type and size of pyöränpultti. These are often supplied with new wheels or can be purchased from automotive parts suppliers. It is also recommended to tighten pyöränpultit to the manufacturer's specified torque using a torque wrench to ensure even pressure distribution and prevent damage to the wheel or hub. Regularly checking the tightness of pyöränpultit is a crucial aspect of vehicle maintenance for safety.