Product Description
Metric Coarse HSS Spiral Point Ground Hand & Machine Taps
UK made high speed steel taps for cutting metric coarse internal threads by hand or machine. Ground cutting threads and a spiral point provide an effective cutting action, directing swarf ahead of the tap for through-hole tapping.
Available Sizes
| Thread Size | Pitch (mm) | Approx. Threads Per Inch |
|---|---|---|
| M2 | 0.4 | 63.5 |
| M2.5 | 0.45 | 56.4 |
| M3 | 0.5 | 50.8 |
| M3.5 | 0.6 | 42.3 |
| M4 | 0.7 | 36.3 |
| M5 | 0.8 | 31.8 |
| M6 | 1.0 | 25.4 |
| M7 | 1.0 | 25.4 |
| M8 | 1.25 | 20.3 |
| M10 | 1.5 | 16.9 |
| M12 | 1.75 | 14.5 |
| M14 | 2.0 | 12.7 |
| M16 | 2.0 | 12.7 |
| M18 | 2.5 | 10.2 |
| M20 | 2.5 | 10.2 |
| M22 | 2.5 | 10.2 |
Metric threads are specified by their pitch in millimetres. Approximate TPI conversions are provided for reference only.
Key Features
- High speed steel (HSS) construction
- Ground metric coarse cutting threads
- Spiral point with straight flutes
- Suitable for hand and machine tapping
- Can be used for hand tapping without a separate lead tap
- UK made
BS 3643-1 covers the principles and basic data for ISO metric screw threads. This reference relates to the thread system. Please contact us before ordering to confirm compliance certification availability.
Use the correct tapping drill and a suitable cutting lubricant for the workpiece material. Keep the tap aligned with the hole and allow clearance for swarf to exit ahead of the cutting point.
Related Products
- Adjustable Tap Holder Wrenches
- BA HSS Spiral Point Ground Hand & Machine Taps
- Metric and Imperial Thread Data Guide
Specifications are intended as a guide. Confirm the required thread size, pitch and suitability for your workpiece before ordering.
