Countersink Depth Calculator

Calculate Countersink Depth

Screw Head Diameter (in)

Screw Head Height (in)

Countersink Angle (degrees)

Material

Application Type

Safety Margin (in)

About Countersink Depth Calculations

Countersink depth calculations ensure proper screw head seating and flush mounting in various materials.

Countersink Formula:

Depth = (Head Diameter - Shank Diameter) ÷ (2 × tan(Angle/2))

Common Angles:

82°: Standard countersink
90°: Flat bottom
60°: Sharp angle
100°: Obtuse angle

Applications:

• Woodworking
• Metal fabrication
• Assembly work
• Furniture making