When you're choosing fasteners springs industrial hardware for your workshop, the first fork is whether you need a broad assortment of small springs or a single, longer compression spring with a wider wire range. The 380PCS Stainless Steel Compression Springs Assortment Kit answers the small-repair side with 380 pieces for $14.99, while the 305mm Compression Spring Steel Wire 0.3-5 mm 304 Stainless Steel Pressure Spring goes after bigger mechanical jobs for $82.25. Here's how to pick between them.
Quick Verdict
If you repair pens, toys, or small DIY projects and need multiple spring sizes on hand, the 380-piece kit is the low-cost workhorse. If you need a long 304 stainless compression spring for tractors, machinery, or metal construction, the 305mm spring is the more suitable single purchase.
Comparison Table
| Feature | 380PCS Stainless Steel Compression Springs Assortment Kit | 305mm Compression Spring Steel Wire 0.3-5 mm 304 Stainless Steel Pressure Spring |
|---|---|---|
| Price | USD 14.99 | USD 82.25 |
| Contents | 380 springs in 23 sizes | 1 spring, 305mm long |
| Wire diameter | 0.3mm to 0.7mm | 0.3mm to 5mm |
| Material | Stainless steel | 304 stainless steel |
| Best for | Small repairs, pen fixes, DIY | Industrial, agricultural, vintage car use |
Where Each Product Wins
The assortment kit wins on variety and value: 380 pieces gives you a working set of small spring dimensions in one box. The 305mm spring wins on reach: a much longer length and a wider wire diameter range make it a better fit for heavy-duty swaps where one specific spring is needed.
Product Notes
380PCS Stainless Steel Compression Springs Assortment Kit - Small & Tiny Springs
The strongest reason to pick this kit is that it puts 380 stainless springs in 23 different sizes into one small box. That's a practical range for pen repair, craft work, and workshop fixes where the right spring may not be obvious until you try one. The stainless steel build also resists corrosion in humid garages, gardens, and workshops. The flip side is that every spring is small or tiny, so the kit won't help if you're repairing a tractor or need a long 305mm compression spring. You also get a set rather than a single defined length, which means you'll still need to sort through the group to find the one that fits your project.
305mm Compression Spring Steel Wire 0.3-5 mm 304 Stainless Steel Pressure Spring
This is a single 305mm-long compression spring made from 304 stainless steel, with wire diameters from 0.3mm to 5mm and outer diameters from 3mm to 50mm. It sits at the larger end of the fasteners springs industrial hardware spectrum: tractors, agriculture, metal construction, vintage cars, and model making are all listed as suitable uses. The open ends give you a straight shot for compression applications. The catch is that it's one spring, not an assortment, so you won't have spares or a range of sizes to test with. If your project calls for several springs or multiple diameters, you'll have to order additional ones on your own.
Final Choice by Use Case
If your immediate job is a pen, toy, or small workshop repair, the 380PCS Stainless Steel Compression Springs Assortment Kit is the obvious pick. If you're restoring a tractor or doing metal construction and need a long 304 stainless compression spring, the 305mm Compression Spring Steel Wire 0.3-5 mm 304 Stainless Steel Pressure Spring is the right match. Let the size of the job decide, not the price gap.
