Holes and Hole Notes

Which type of hole cuts through the entire object?

• Through/Thru

• Clearance

• Blind

• Tapped

Which type of hole is large enough to allow an entire screw-head and driver through?

• Through/Thru

• Clearance

• Blind

• Tapped

What type of hole does NOT go all the way through an object?

• Through/Thru

• Clearance

• Blind

• Tapped

What type of hole is typically used for a tapered screw to sit flush?

• Through/Thru

• Counterbore

• Countersink

• Tapped

What type of hole is typically used for a bolt head or a nut to sit flush?

• Through/Thru

• Counterbore

• Countersink

• Tapped

What type of hole has threads?

• Through/Thru

• Counterbore

• Countersink

• Tapped

What type of hole has this symbol?

• Depth

• Counterbore

• Countersink

• Tapped

What type of hole has this symbol?

• Depth

• Counterbore

• Countersink

• Tapped

What does this symbol represent?

• Depth

• Counterbore

• Countersink

• Tapped

If my hole is tapped with a note that reads 1/2-20 UNF what is the major diameter?

• 1/2

• 20

• UNF

• IDK