Pololu Ball Caster with 3/8″ Metal Ball vs Machine Screw: M3, 7mm Length, Phillips (25-pack)
Pololu Ball Caster with 3/8″ Metal Ball and Machine Screw: M3, 7mm Length, Phillips (25-pack) are compared below on the data published by their sellers — price converted to euros, stock, and every specification either seller discloses. On price, Machine Screw: M3, 7mm Length, Phillips (25-pack) is €0.50 cheaper ($2.38).
| Criterion |  Pololu Ball Caster with 3/8″ Metal Ball |  Machine Screw: M3, 7mm Length, Phillips (25-pack) |
|---|---|---|
| Price | $2.95 | $2.38cheapest |
| Seller | Pololu | Pololu |
| Availability | In stock | In stock |
| Rating | — | — |
| Weight | 4 g | 11.3 g |
| Ball diameter | 0.375 in | — |
| Ball material | metal | — |
| Length | — | 7 mm |
| Thread type | — | M3 |
| 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.