Smooth Surgical Pin
Straight-shank surgical fixation pin with double trocar-tapered tips.
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 |
|---|---|---|---|---|---|
| MEDA-SPN-15 | 1.5 | 68 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-16 | 1.6 | 73 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-18 | 1.8 | 80 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-20 | 2 | 90 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-25 | 2.5 | 102 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-30 | 3 | 114 | taper | h6 | ISO 5838 trocar point |
| MEDA-SPN-35 | 3.5 | 126 | taper | h6 · ⌀3.5: 0/−0.008 | ISO 5838 trocar point |
| MEDA-SPN-40 | 4 | 138 | taper | h6 · ⌀4: 0/−0.008 | ISO 5838 trocar point |
| MEDA-SPN-45 | 4.5 | 150 | taper | h6 · ⌀4.5: 0/−0.008 | ISO 5838 trocar point |
| MEDA-SPN-50 | 5 | 162 | taper | h6 · ⌀5: 0/−0.008 | ISO 5838 trocar point |
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
Smooth Surgical Pin is a Medical & Dental Parts family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀1.5–5 mm, lengths 68–162 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 ⌀5 mm bar stock; its longest variant is MEDA-SPN-50 at 162 mm. Besides turning, the family requires taper turning. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is MEDA-SPN-16: 73 mm long at ⌀1.6 mm, a length-to-diameter ratio of 45.6. This ratio is the very reason sliding-head lathes exist. The guide bushing supports the bar immediately beside the cutting point, so there is no deflection; the same part chatters and drifts in diameter on a conventional lathe.
Variants are machined to h6 tolerance; the smallest is MEDA-SPN-15 (⌀1.5 mm) and the largest MEDA-SPN-50 (⌀5 mm). The family includes 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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