🔧 Prime-Line Products N6729 Top Pivot/Guide Pin, 3/8" x 5/16" Cap Length, 1/4" Diameter Rod, Steel, 5-5/8", Mill Review

The Prime Line Products 6729 is a reliable door hardware and lock tool that strengthens your home's security. It's easy to install and durable with its steel construction. One issue is its slightly high price, but its robustness makes it worth the investment. If you're looking for peace of mind and enhanced protection, this product is right for you. Keep your house safe with this top-notch tool in the Hardware section of Tools and Home Improvement.

This was just what I needed for an old folding door model, but it failed miserably. The nylon caps that ride on the rails pop out when pulled when adjusting the door height. I ended up using old connecting rods and new springs from my order. Very disappointing.

Turns out that's all I need to get the bi fold doors working properly again in our 'new' home ! Easy to install/use. Suggest YouTube videos (I haven't done this yet, but are you sure there are any?) if you get stuck. Although the installation is quite simple.