Ball-Spring Latch for Doors or Cabinets

This is a simple spring/ball latch to keep a door closed but not locked. I am using it on a full size door but it is often used on cupboards and cabinet doors.

The trapped nut and the bolt allow adjusting the tension of the spring.

The hardware I used is:

• 1 x M3 bolt (20 or 25mm long)
• 1 x M3 nut
• 1 x Spring (I am using one from an IKEA PRESSA clothespin)
• 1 x 11mm steel ball