Pololu Ball Caster with 3/8″ Plastic Ball vs Machine Screw: #4-40, 1/4″ Length, Phillips (25-pack)
Pololu Ball Caster with 3/8″ Plastic Ball and Machine Screw: #4-40, 1/4″ 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: #4-40, 1/4″ Length, Phillips (25-pack) is €0.96 cheaper ($1.85).
| Criterion |  Pololu Ball Caster with 3/8″ Plastic Ball |  Machine Screw: #4-40, 1/4″ Length, Phillips (25-pack) |
|---|---|---|
| Price | $2.95 | $1.85cheapest |
| Seller | Pololu | Pololu |
| Availability | In stock | In stock |
| Rating | — | — |
| Weight | 0.8 g | 11.9 g |
| Ball diameter | 0.375 in | — |
| Ball material | plastic | — |
| Length | — | 0.25 in |
| Thread type | — | 4-40 |
| 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.