Banjo Bolt
Hex-head hollow banjo bolt with axial bore and radial oil port.
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 9 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| RAKB-BNJ-08 | 9.2 | 16 | M5 · SW8 · ⌀2.5 | 6g | mini banjo; axial ⌀2.5 bore |
| RAKB-BNJ-04 | 11.5 | 19 | M6 · SW10 · ⌀3 | 6g | axial ⌀3 bore + radial oil hole |
| RAKB-BNJ-12 | 11.5 | 22 | M6 · SW10 · ⌀3 | 6g | long-thread banjo; axial ⌀3 bore |
| RAKB-BNJ-05 | 13.9 | 22 | M8 · SW12 · ⌀4 | 6g | axial ⌀4 bore + radial oil hole |
| RAKB-BNJ-09 | 13.9 | 23 | M10x1.25 · SW12 · ⌀4.5 | 6g | fine-thread banjo; axial ⌀4.5 bore |
| RAKB-BNJ-06 | 16.2 | 26 | M10x1 · SW14 · ⌀5 | 6g | axial ⌀5 bore + radial oil hole |
| RAKB-BNJ-10 | 16.2 | 24 | M8x1 · SW14 · ⌀4 | 6g | fine-thread banjo; axial ⌀4 bore |
| RAKB-BNJ-07 | 19.6 | 29 | M12x1.5 · SW17 · ⌀6 | 6g | axial ⌀6 bore + radial oil hole |
| RAKB-BNJ-11 | 19.6 | 33 | M12x1.5 · SW17 · ⌀7 | 6g | high-flow banjo; axial ⌀7 bore |
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
Banjo Bolt is a Fittings family precision-turned on a Goodway SW-20, covering 9 variants — diameters ⌀9.2–19.6 mm, lengths 16–33 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 RAKB-BNJ-11 at 33 mm. Besides turning, the family requires thread turning (7 sizes from M5 to M12x1.5), hex flat milling (AF 8–17) and axial drilling (⌀2.5–7 mm). 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 RAKB-BNJ-12: 22 mm long at ⌀11.5 mm, L/D 1.9. 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 RAKB-BNJ-08 (⌀9.2 mm) and the largest RAKB-BNJ-11 (⌀19.6 mm). The family includes threaded, hex-drive, bored, 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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