Bookcase shelf pins install#

I find it hard to believe that a few bottles would tear those pins out, unless either 1) the shelves are too short, resulting in a lot of torsional force, or 2) the pins weren't fully seated. It is the fastening of the bracket to the shelf that will provide most of the force to keep the pin straight into the cabinet side wall. but be careful to not let the hole or screw come through the top of the shelf. It would be highly encouraged to drill a pilot hole for these screws. Once you have the brackets and shelves in place you screw the bracket to the bottom side of the shelf. It is best if the side to side length of the shelf fits snugly between the bracket at each side. The shelf will then sit on top of the part of the bracket with the hole.

Bookcase shelf pins install#

You may have to push some of the splintered wood flat but then you would install these brackets up tight to the side walls. The old pins broke out the side wall at the top of the hole and these will rest on the bottom of the holes once installed. You should be able to easily use your existing cabinet and bracket holes with this alternate type of bracket. Here is a picture of one type that I have used in the past with good success. There are alternate types of shelf bracket pins that are designed to keep the pin at 90 degrees to the side wall thus keeping it from torquing out of the hole. The type of shelf pins shown in your photo are able to twist out of crappy MDF or particle board side walls when a lot of torque is placed on the pin due to excessive weight placed upon the shelf.