Dowel Support Screw
Stepped screw with a precision cylindrical dowel end and a threaded end for locating and support.
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 |
|---|---|---|---|---|---|
| BAGB-DOW-01 | 4 | 20 | M3 · taper | h6 · ⌀4: 0/−0.008 | ⌀4 dog point / M3 thread |
| BAGB-DOW-02 | 4 | 28 | M3 · taper | h6 · ⌀4: 0/−0.008 | ⌀4 long dog point / M3 |
| BAGB-DOW-03 | 5 | 24 | M4 · taper | h6 · ⌀5: 0/−0.008 | ⌀5 dog point / M4 thread |
| BAGB-DOW-04 | 5 | 34 | M4 · taper | h6 · ⌀5: 0/−0.008 | ⌀5 long dog point / M4 |
| BAGB-DOW-05 | 6 | 28.5 | M5 · taper | h6 · ⌀6: 0/−0.008 | ⌀6 dog point / M5 thread |
| BAGB-DOW-06 | 6 | 40.5 | M5 · taper | h6 · ⌀6: 0/−0.008 | ⌀6 long dog point / M5 |
| BAGB-DOW-07 | 8 | 33 | M6 · taper | h6 · ⌀8: 0/−0.009 | ⌀8 dog point / M6 thread |
| BAGB-DOW-08 | 8 | 47 | M6 · taper | h6 · ⌀8: 0/−0.009 | ⌀8 long dog point / M6 |
| BAGB-DOW-09 | 10 | 39 | M8 · taper | h6 · ⌀10: 0/−0.009 | ⌀10 dog point / M8 thread |
| BAGB-DOW-10 | 10 | 57 | M8 · taper | h6 · ⌀10: 0/−0.009 | ⌀10 long dog point / M8 |
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
Dowel Support Screw is a Fasteners family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀4–10 mm, lengths 20–57 mm, standard material Stainless Steel (also 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 ⌀10 mm bar stock; its longest variant is BAGB-DOW-10 at 57 mm. Besides turning, the family requires thread turning (5 sizes from M3 to M8) and taper turning. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is BAGB-DOW-02: 28 mm long at ⌀4 mm, a length-to-diameter ratio of 7.0. A part this slender needs tailstock support on a conventional lathe. On a sliding-head lathe the guide bushing holds the bar right next to the cutting edge, so the part is machined without a centre.
Variants are machined to h6 tolerance; the smallest is BAGB-DOW-01 (⌀4 mm) and the largest BAGB-DOW-10 (⌀10 mm). The family includes threaded, tapered, 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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