Connector Pin
Brass conductive contact pin for automotive electrical connectors.
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 |
|---|---|---|---|---|---|
| OTOB-CNP-05 | 3 | 20 | 2 steps | h7 | two-step contact pin |
| OTOB-CNP-06 | 4 | 23 | 2 steps | h7 | two-step contact pin |
| OTOB-CNP-07 | 4 | 26 | 3 steps | h7 | three-step contact pin |
| OTOB-CNP-08 | 5 | 26 | 2 steps | h7 | two-step contact pin |
| OTOB-CNP-09 | 5 | 28 | knurl · 3 steps | h7 | contact pin with knurled grip |
| OTOB-CNP-10 | 6 | 28 | 2 steps | h7 · ⌀6: 0/−0.012 | two-step contact pin |
| OTOB-CNP-11 | 6 | 30 | 3 steps | h7 · ⌀6: 0/−0.012 | three-step contact pin |
| OTOB-CNP-12 | 8 | 32 | knurl · 3 steps | h7 | contact pin with knurled grip |
| OTOB-CNP-13 | 10 | 30 | ⌀3 · 2 steps | h7 | hollow-bore socket contact pin |
| OTOB-CNP-14 | 12 | 32 | ⌀4 · 2 steps | h7 | hollow-bore socket contact pin |
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
Connector Pin is a Automotive Precision Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀3–12 mm, lengths 20–32 mm, standard material Brass (also steel, stainless steel 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 ⌀12 mm bar stock; its longest variant is OTOB-CNP-12 at 32 mm. Besides turning, the family requires knurling and axial drilling (⌀3–4 mm). All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is OTOB-CNP-05: 20 mm long at ⌀3 mm, a length-to-diameter ratio of 6.7. 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 h7 tolerance; the smallest is OTOB-CNP-05 (⌀3 mm) and the largest OTOB-CNP-14 (⌀12 mm). The family includes knurled, 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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