Overview

Metric Coarse & Fine

Angle of thread is 60.

The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.

Larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.

The major diameter of external thread and pitch are specified by a simple numerical value (most commonly measured in millimetres).

Intermediate Taps

Intermediate Taps have a lead of four threads and are used in most general purpose applications to cut a thread true to a pre-drilled pilot hole.

Specifications

4220-4.00T

• Diameter: 4mm

• Pitch: 0.7mm

• Overall Length: 54mm

• Tapping Drill: 3.4mm

4220-5.00T

• Diameter: 5mm

• Pitch: 0.8mm

• Overall Length: 60mm

• Tapping Drill: 4.3mm

4220-6.00T

• Diameter: 6mm

• Pitch: 1mm

• Overall Length: 64mm

• Tapping Drill: 5.1mm

4220-8.00T

• Diameter: 8mm

• Pitch: 1.25mm

• Overall Length: 70mm

• Tapping Drill: 6.9mm

4220-10.00T

• Diameter: 10mm

• Pitch: 1.5mm

• Overall Length: 75mm

• Tapping Drill: 8.5mm

4220-12.00T

• Diameter: 12mm

• Pitch: 1.75mm

• Overall Length: 86mm

• Tapping Drill: 10.2mm