Why Keyhole Slots Never Line Up

Logosofia no Dia a Dia · Oct 8, 2026 · 23m

You've measured the keyhole slots on the back of a power strip, drilled exactly, and the thing still doesn't line up — because there was never a standard to hit. This episode cracks open the humble keyhole slot: why the spacing varies from 115 to 136 millimetres between makers, why some powerboards have slots facing opposite directions on the same plate, and why the countersunk screw in your drawer is the one shape that guarantees a wobble. Along the way: the pencil-rubbing trick that replaces measuring entirely, the physical two-part test for finding the right screw, and the…