0

When a hole is created for a bolt, it might be "tight"; the intent is for the hole to be tapped. Or it might be "loose", and the intent is for the bolt to slide into the hole and attached to a nut on the other side.

What is the terminology for these two kinds of holes?

Mark Harrison
  • 1,103
  • 2
  • 11
  • 26

1 Answers1

1

A hole designed for a screw/bolt to slide freely through is called a clearance hole. A hole that is designed to be tapped could be called a pilot hole.

Tom van der Zanden
  • 15,057
  • 2
  • 37
  • 65