304 Stainless Steel Compression Springs Wire Diameter 1.5/1.6mm Pressure Small

The wire diameter directly affects the spring rate and load capacity. A 1.6 mm wire produces a stiffer spring than a 1.5 mm wire at the same OD and free length. If you need a lighter return force or are replacing an existing spring, match the wire diameter to your original specification. When in doubt, measure the wire cross-section with calipers before ordering.

Choose an OD that fits inside your bore or housing with a small clearance (typically 0.5–1 mm on each side). Select a free length that allows the spring to be compressed to your required working length while still providing the desired force. Use the variant dropdowns above to pick the exact OD (9–25 mm) and free length (10–50 mm) combination that matches your design.

Load capacity depends on the specific wire diameter, OD, and free length combination selected. These are light-to-medium duty springs suited for push-button mechanisms, valve returns, drawer slides, and similar applications. For exact spring rate and maximum load data for your chosen variant, contact us to confirm before ordering for load-critical applications.

Yes. 304 stainless steel provides solid passive corrosion resistance in humid, mildly saline, and outdoor environments. It is not recommended for prolonged immersion in chloride-rich solutions (e.g., seawater or pool water) — for those conditions, 316 stainless steel would be more appropriate. For typical DIY, workshop, and light industrial use, 304 stainless performs reliably.

Yes, provided you match the wire diameter, OD, and free length of the original spring. Measure your existing spring carefully with calipers before selecting a variant. The consistent tolerances on these springs make them suitable drop-in replacements for worn or broken compression springs in small appliances, 3D printers, RC models, and hand tools.

The outside diameter (OD) is the total width of the coil measured from the outer edge of the wire on one side to the outer edge on the opposite side. The inside diameter (ID) is approximately OD minus twice the wire diameter. When fitting a spring over a rod, match the ID to the rod diameter with clearance. When fitting inside a bore, match the OD to the bore with clearance. The variant options in this listing specify OD.

Pack quantity varies by variant. Please check the variant description or product listing details for the quantity included. If you need a specific quantity for a bulk project, contact us before placing your order.