Star knob with axial bearing made from thermoplastic diameter 40mm vs Socket pins with spring-loaded balls diameter 8mm l1 = 50mm
Star knob with axial bearing made from thermoplastic diameter 40mm and Socket pins with spring-loaded balls diameter 8mm l1 = 50mm are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Star knob with axial bearing made from thermoplastic diameter 40mm is €9.21 cheaper ($26.26).
| Criterion |  Star knob with axial bearing made from thermoplastic diameter 40mm |  Socket pins with spring-loaded balls diameter 8mm l1 = 50mm |
|---|---|---|
| Price | $26.26cheapest | $36.89 |
| Seller | MÄDLER | MÄDLER |
| Availability | In stock | In stock |
| Rating | — | — |
| Weight | 45 g | 51 g |
| Bolt diameter | — | 8 mm |
| Height | 27 mm | — |
| Material | Polyamide / Tempered steel | Stainless steel (17-4PH) / Plastic (PA6) |
| Outer diameter | 40 mm | 39.2 mm |
| Outer diameter with ball overhang | — | 9.6 mm |
| Shear strength | — | 63 kN |
| Socket bore h11 | — | 8 mm |
| Surface | Nitrided, blank | Blank |
| Thread size | M 6 mm | — |
| Usable fastening length | — | 50 mm |
| View at seller ↗ | View at seller ↗ |
Specifications are extracted automatically from seller data — an empty cell means the seller does not publish that value, not that the product lacks it.
Robotitem does not test products. This comparison reports seller-published data only, and ranking never takes affiliate commission into account.