Whether you're repairing a household appliance or restocking a workshop, fasteners springs industrial hardware choices usually come down to one question: do you need many sizes or one exact size? That's the difference between the 390-Piece Compression Spring Assortment Kit and the Compression Spring 1.5mm Wire Diameter 15-100mm Length Pressure Small OD 8-25mm. The kit is built around variety at a lower price; the specific-size spring gives you a heavier wire diameter and longer range. This head-to-head helps you decide.
Quick Verdict
Choose the 390-piece assortment kit if you're handling general small-spring repairs and like having labeled containers in the mix. Choose the 1.5mm wire compression spring if your project already calls for a 1.5mm wire and you need longer lengths. The assortment is the low-friction option for varied work; the 1.5mm spring is the more direct option when your specification is already locked in.
Comparison at a Glance
| Feature | 390-Piece Compression Spring Assortment Kit | Compression Spring 1.5mm Wire Diameter |
|---|---|---|
| Price | $10.90 | $20.89 |
| Wire diameter | 0.3 - 0.8mm | 1.5mm |
| Outer diameter | 2 - 8mm | 8 - 25mm |
| Length range | 5 - 30mm | 15 - 100mm |
| Material | Stainless steel | Spring steel |
Where Each Product Wins
Both springs are new and work for compression duties, but the better choice depends on what's on your workbench.
- The 390-piece assortment kit wins for variety and quick access: the labeled case and many sizes make it easy to grab a match as you repair.
- The 1.5mm wire spring wins for larger jobs: its outer diameter and length ranges extend past the assortment's top end, and the spring steel construction suits heavier compression work.
Product Notes
Compression Spring 1.5mm Wire Diameter
If your repair already specifies a 1.5mm wire, this CooBetter spring gives you a direct match. It's made from spring steel, and the stated outer diameter range of 8-25mm with lengths from 15-100mm covers jobs that need a stronger push than tiny hobby springs can provide. The product information also notes possible color differences from lighting and small manual measurement errors, so leave a little tolerance when you measure. The trade-off is focus: because it centers on one wire diameter, it won't give you the breadth of sizes you'd get from an assortment. If you only need this one specification, you're paying for the exact range rather than a box of mostly unused pieces.
390-Piece Compression Spring Assortment Kit
With 390 pieces spread across 28 sizes, this stainless steel assortment is built for people who want a spring on hand before the job starts. The wire diameters jump from 0.3mm to 0.8mm, and the outer diameters run from 2mm to 8mm, covering small DIY fixes and light industrial repairs. The reusable compartmentalized case with labeled sections keeps the springs sorted, which makes it a tidy workshop addition. A few limitations: the plain finish and small diameter range mean it won't handle heavier 1.5mm wire jobs, and the stainless steel may show slight magnetism from manufacturing even though that doesn't affect performance. If most of your projects use fine, small springs, this kit offers much more variety than buying individual sizes.
Final Choice by Use Case
Start with the 390-Piece Compression Spring Assortment Kit when you want a range of small springs for ongoing repairs, hobby work, or light mechanical fixes. The assortment's many sizes and organized case make it simple to keep moving. Choose the Compression Spring 1.5mm Wire Diameter when the project is already specified: you need a 1.5mm wire spring with a longer body and larger outer diameter than the assortment kit's top end. Both products are new and fit into the fasteners springs industrial hardware category, but the decision really comes down to whether you want breadth across sizes or precision around one specification.
