Hex Transition Nipple
Transition nipple with central hex wrench flats and external threads on both ends.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| SOMB-GNP-01 | 8.1 | 19 | M3 · SW7 | 6g | AF7 |
| SOMB-GNP-02 | 9.2 | 24 | M4 · SW8 | 6g | AF8 |
| SOMB-GNP-03 | 11.5 | 24 | M4 · SW10 | 6g | AF10 |
| SOMB-GNP-04 | 11.5 | 29 | M5 · SW10 | 6g | AF10 |
| SOMB-GNP-05 | 15 | 29 | M6 · SW13 | 6g | AF13 |
| SOMB-GNP-06 | 15 | 32 | M5 · SW13 | 6g | AF13 |
| SOMB-GNP-10 | 15 | 31 | M8 · SW13 | 6g | AF13 equal |
| SOMB-GNP-07 | 19.6 | 34 | M8 · SW17 | 6g | AF17 |
| SOMB-GNP-08 | 19.6 | 35 | M6 · SW17 | 6g | AF17 |
| SOMB-GNP-09 | 19.6 | 42 | M10 · SW17 | 6g | AF17 equal |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Hex Transition Nipple is a Nuts & Adapters family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀8.1–19.6 mm, lengths 19–42 mm, standard material Steel (also stainless steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀20 mm bar stock; its longest variant is SOMB-GNP-09 at 42 mm. Besides turning, the family requires thread turning (6 sizes from M3 to M10) and hex flat milling (AF 7–17). All of it is completed in a single setup, without the part leaving the machine.
The variant with the highest length-to-diameter ratio is SOMB-GNP-02: 24 mm long at ⌀9.2 mm, L/D 2.6. A short, rigid body: what governs the result here is not deflection but diameter tolerance and surface finish.
Variants are machined to 6g tolerance; the smallest is SOMB-GNP-01 (⌀8.1 mm) and the largest SOMB-GNP-09 (⌀19.6 mm). The family includes threaded, hex-drive, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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