Screw 5.7 4X12

This is an OEM quality chain tensioner for a chainsaw. This part is attached to the adjustment screw and fits into an opening on the bar. When you turn the adjuster it moves the tensioner, which either tightens or loosen...

This is a bevel gear, also referred to as a drive gear or tension gear, and is used in chainsaws. This authentically sourced part is sold individually. It is part of the chain tensioning assembly, aiding in loosening and...

This is a single bevel gear for a chainsaw. Your chainsaw has two bevel gears that allow you to adjust the chain tension. One has a post with a slot in it (for a screwdriver), which mates to a second bevel gear that is a...