Optical Post
Hex-gripped double-threaded post setting optical mounting height.
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 12 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| OPTB-PST-02 | 6 | 32 | M4 | 6g | 20 mm body, double end M4 |
| OPTB-PST-04 | 8 | 41 | M5 | 6g | 25 mm body, double end M5 |
| OPTB-PST-01 | 8.1 | 18 | M4 · SW7 | 6g | double end M4, hex grip |
| OPTB-PST-03 | 9.2 | 24 | M5 · SW8 | 6g | double end M5, hex grip |
| OPTB-PST-06 | 10 | 50 | M6 · knurl | 6g | 30 mm knurled body, M6 |
| OPTB-PST-05 | 11.5 | 30 | M6 · SW10 | 6g | double end M6, hex grip |
| OPTB-PST-07 | 12 | 60 | M6 | 6g | 40 mm body, double end M6 |
| OPTB-PST-09 | 14 | 74 | M8 · knurl | 6g | 50 mm knurled body, M8 |
| OPTB-PST-08 | 15 | 36 | M8 · SW13 | 6g | double end M8, hex grip |
| OPTB-PST-10 | 16 | 84 | M8 | 6g | 60 mm body, double end M8 |
| OPTB-PST-12 | 18 | 103 | M10 | 6g | 75 mm long post, M10 |
| OPTB-PST-11 | 19.6 | 42 | M10 · SW17 | 6g | double end M10, hex grip |
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
Optical Post is a Opto-Mechanical Parts family precision-turned on a Goodway SW-20, covering 12 variants — diameters ⌀6–19.6 mm, lengths 18–103 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 ⌀20 mm bar stock; its longest variant is OPTB-PST-12 at 103 mm. Besides turning, the family requires thread turning (5 sizes from M4 to M10), hex flat milling (AF 7–17) and knurling. 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 OPTB-PST-12: 103 mm long at ⌀18 mm, L/D 5.7. This ratio is achievable on a conventional lathe as well; the sliding-head advantage in series work is that the part never leaves the machine, so the size does not drift from variant to variant.
Variants are machined to 6g tolerance; the smallest is OPTB-PST-02 (⌀6 mm) and the largest OPTB-PST-11 (⌀19.6 mm). The family includes threaded, hex-drive, knurled, 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?
Other Families in This Category
Back to categoryLet Us Create a Solution Tailored to Your Needs
Contact us to discuss your project; let's work out the most suitable solution together.