Barrel Bolt Latch, Sliding Bolt Gate Lock Door Latches Hardware, 9.6 Inch Heavy Duty Solid 304 Stainless Stee Door Lock for Fence/Wooden/Barn Door/Yard Door/Interior Door Latch (10inch Black-1 Pack)

Works fine for shed double doors. You MUST line up EXACTLY the barrel bolt with the female receiver. However once you do that, you have very good security with double doors.

We put these latches on a double-door swinging commercial kitchen door at a church. They're solid bolts and do a good job of securing the doors. We extended them up into the frame rather than down into concrete flooring because we feel there's a possibility we will need to move the wall, and rather than put holes in the floor for a temporary fix, we would rather put the bolts into the frame. It's less secure that way, but we're not looking to make the door all that secure, merely to keep people out who would otherwise mess up the kitchen. These were a good solution, and would be a very secure solution if they extended into the floor instead of the frame.

Looks good & works great.

Very sturdy worked great for our application

Very solid and nice looking. However, it is somewhat tricky to fix the latch in an "up" / unlatched position. Also, the pin plate (into which the pin engages) is in an "L" configuration, with the screw holes in a different part of the "L" than the pin hole. This means that if one is installing it onto a floor board, one must have or create a space for the screw hole portion of the "L" to slip in AND find a way to slant the screws in to fix the pin plate in place. I suppose one could use a vise to straighten the "L" into a flat piece, but I managed without doing that.

Like how this will give my French doors more security and help seal doors to frame by pushing doors and holding seal and drafts out

Where to start. I bought this based on the Amazon instruction photo showing the min & max latch mounting distance from floor (40mm - 80mm); however, the supplied instructs show it to be 20mm-40mm, making it no good for my purpose. Worse yet, while taking the first latch out of the package, the handle fell off. It's just pressed into place with no method of adhering securing it, no threading. What the heck!

As described, all parts there. Needed some lubrication to work smoothly.