You use Hand Tap Second ISO 529 Form D HSS-G - G (BSP) 1" x 11 to generate threads during manufacturing, maintenance, or repair work. Correct results depend on matching the tool to the specified thread designation and keeping the tool aligned to the axis.
BSPP refers to a British Standard Pipe parallel thread, commonly used for pipe connections where sealing is handled by a separate element. ISO 529 indicates the referenced standard family or tool standard named in the product designation. HSS-G indicates high speed steel with a ground execution, typically chosen for controlled cutting and consistent geometry.
Note Clean threads and tools before use, apply suitable lubrication for cutting operations, and stop if resistance rises sharply.
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| Type of thread | Pipe thread |
|---|---|
| Standard | ISO 529 |
| Form | Form D |
| Material | HSS-G |
| Tolerance | medium |
| Size | G (BSP) 1" x 11 |
| Overall length (L1) | 109 mm |
| Thread length (L2) | 33 mm |
| Core hole diameter (D1) | 30.75 mm |
| Shank diameter (D2) | 25.0 mm |
| Drive connector | 20.0 mm |
| Item number | 86426-2 |
| Type of flute | straight fluted |
| Application | for through and blind holes |
| Thread standard | DIN ISO 228 |









