RockJock Greaseable Bolt w/ Hardware 12mm Thread X 95mm Long

This kit from RockJock gives you a greaseable bolt assembly, complete with a grade 8 bolt that has a zerk fitting, two flat washers, and a stover nut. These bolts are commonly used to grease Johnny Joint rod ends, but they're versatile enough for many other applications where you need to add grease to a joint or pivot point. The bolt itself has a 12mm thread and measures 95mm (about 3 3/4 inches) long.

Having a greaseable bolt means you can easily service the joint it's installed in. By adding grease through the zerk fitting, you can push out old grease and contaminants, helping to keep the joint moving freely and extending its life. This is especially helpful for suspension components like leaf springs or control arms that see a lot of stress and dirt.