Compression Spring Wire Dia.=0.6mm OD=7mm~12mm A2 Stainless Steel Y Type Spring

Measure the bore or guide rod your spring will seat in. The spring OD should be 0.5–1 mm smaller than the bore diameter for a sliding fit, or 0.5–1 mm larger than a guide rod for an over-rod fit. For free length, select a spring that is 20–30% longer than your required compressed length to stay within the elastic range and avoid coil bind.

With a 0.6 mm wire, these springs are designed for light-duty applications. Typical load capacity depends on the OD and free length of the specific variant, but the 0.6 mm wire gauge is suited to mechanisms requiring gentle return force — such as push-buttons, pen clips, small latches, and sensor actuators — rather than heavy-load industrial applications.

Yes. A2 (Grade 304) stainless steel provides good resistance to atmospheric corrosion, fresh water, and mild salt environments. It is suitable for outdoor prototypes, marine hobby projects, and humid workshop conditions. For highly aggressive salt-water immersion or strong acid/chloride environments, A4 (Grade 316) stainless would be a stronger choice.

"Y-type" refers to the open-coil winding style where adjacent coils do not touch in the free (unloaded) state. This is the standard geometry for compression springs and allows the spring to compress linearly until the coils contact each other (solid height). It distinguishes these from close-wound tension springs or torsion springs.

Yes. The 0.6 mm wire / 7–12 mm OD range is commonly used in 3D printer extruder tensioners, bed-levelling spring mounts, and PCB standoff spring contacts. Select the OD and free length that matches your design's spring pocket or guide rod, and choose a pack quantity that covers your build quantity plus spares.

If you need springs for a single prototype or repair, a 1- or 2-piece pack keeps cost low. For small batch builds (5–20 units), the 10- or 20-piece packs offer better per-unit value. Workshop stock or production runs benefit from the 50-piece packs. All pack sizes ship the same spring specification — only the quantity differs.

Yes. Cutting a compression spring reduces the number of active coils, which increases the spring rate (stiffer). If you need a specific spring rate, it is better to select the correct free-length variant rather than cutting. Cutting also leaves a sharp end that may require grinding to seat properly.