Product Description
BSPF HSS Spiral Point Ground Hand & Machine Taps
UK made high speed steel taps for cutting BSPF parallel internal pipe threads, also commonly described as BSPP or G threads. Suitable for hand or machine tapping, these ground taps feature straight flutes with an angular spiral point that directs swarf ahead of the cutting action.
Available Sizes
| Nominal Pipe Thread Size | Threads Per Inch |
|---|---|
| 1/8 inch BSPF | 28 TPI |
| 1/4 inch BSPF | 19 TPI |
| 3/8 inch BSPF | 19 TPI |
| 1/2 inch BSPF | 14 TPI |
| 3/4 inch BSPF | 14 TPI |
Pipe thread sizes are nominal designations and do not represent the measured thread diameter.
Key Features
- High speed steel (HSS) construction
- Ground parallel pipe cutting threads
- Spiral point design for through-hole tapping
- Straight flutes allow coolant access
- Suitable for hand tapping without a separate lead tap
- UK made
BS EN ISO 228-1 covers parallel pipe threads where pressure-tight joints are not made on the threads. Together with Part 2, it supersedes BS 2779. 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. Where a pressure-tight connection is required, use a suitable sealing arrangement outside the threads, such as a sealing washer or O-ring appropriate to the fitting design.
Related Products
- Adjustable Tap Holder Wrenches
- Whitworth BSW HSS Spiral Point Ground Hand & Machine Taps
- Metric Coarse HSS Spiral Point Ground Hand & Machine Taps
- Metric and Imperial Thread Data Guide
Specifications are intended as a guide. Confirm the required pipe thread size, TPI and suitability for your workpiece before ordering.
