As the name says, these knock-in bearing hinges don't need to be welded on or screwed in. All you need to do is knock these into the top of your posts. This makes it so easy to have heavy gates because not only is installation simple, your gate swing will also be extremely smooth with the ball bearings present at its knuckles. Guaranteed to be sturdy, not prone to snapping if matched with the right weight capacity, our knock-in bearing hinges are sure to last you a long time. We offer different types of hinges for various frame sizes, so browse through our selection to find the one for you.