Compression Spring Steel 2 mm Wire Dia Small Pressure Springs-Coil Spring

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Compression Spring 2mm Wire Dia — Reliable Small Coil Springs for Precision Applications When a mechanism fails because a worn-out spring can no longer hold its load, finding an ex act replacement in the right size is the real challenge. Engineers, hobbyists, and repair technicians who need a dependable small-diameter compression spring will find this 2 mm wire diameter coil spring a practical, ready-to-use solution across a wide range of projects. These compression springs are manufactured from steel wire with a wire diameter of 2 mm (0.079 in) and an outer diameter ranging from 12 mm to 19 mm (0.47–0.75 in) depending on the variant selected. Free lengths span from 15 mm to 305 mm (0.59–12.0 in), giving you precise control over spring rate and travel. The helical coil construction provides consistent axial force under compression. Typical use cases include small mechanical assemblies requiring controlled return force, DIY tool repair and maintenance where a replacement compression spring is needed, robotics and maker projects calling for a compact coil spring with a defined spring rate, and light industrial equipment maintenance involving small pressure springs in valves, latches, or actuators. ⚙️ Compatibility: Suitable for shafts and bores sized to match the selected outer diameter (OD) and inner diameter (ID). Verify your housing bore and shaft diameter against the variant dimensions before ordering. Sold in packs of 3, 5, or 10 pieces depending on length selected. ✅ Key Features of These Compression Coil Springs 🔩2 mm Wire Diameter — Consistent wire gauge across all variants for predictable spring rate and load capacity in small-format applications. 📏Wide Length Range — Available from 15 mm to 305 mm (0.59–12.0 in) free length, covering short-travel latches to longer-stroke actuator springs. 🔄Multiple OD Options — Outer diameters from 12 mm to 19 mm (0.47–0.75 in) let you match the spring to your bore or housing without modification. 🛡️Steel Construction — Steel wire provides solid axial load resistance and shape retention through repeated compression cycles in mechanical assemblies. 📦Flexible Pack Sizes — Choose 3, 5, or 10 pieces per order to match your project quantity, whether a single repair or a small production run. 🎯Closed Ends — Closed (ground or plain) end coils provide stable seating on flat surfaces, reducing lateral shift during compression. 📐 Technical Specifications — Compression Coil Spring Wire Diameter 2 mm (0.079 in) Outer Diameter (OD) 12 mm – 19 mm (0.47–0.75 in) — See variant options Inner Diameter (ID) See variant options (OD minus 2× wire dia) Free Length 15 mm – 305 mm (0.59–12.0 in) — See variant options Material Steel Spring Type Compression (helical coil) End Type See variant options Spring Rate See variant options Max Load See variant options Surface Finish See variant options Packaging 3 pcs / 5 pcs / 10 pcs — See variant options ❓ Frequently Asked Questions How do I choose the right outer diameter for my application? Measure the bore (housing hole) your spring will sit inside, or the shaft it will slide over. The spring's outer diameter should be slightly smaller than the bore to allow free movement, and the inner diameter should be slightly larger than the shaft. Use the variant selector to match the OD to your measured dimensions. If you are replacing an existing spring, measure the old spring's OD and free length directly. What load can a 2 mm wire diameter compression spring handle? The load capacity depends on the outer diameter, free length, and number of active coils — all of which vary by variant. A 2 mm wire diameter spring is suited to light-to-medium duty applications such as latches, small actuators, tool mechanisms, and electronic enclosures. For exact load and spring rate values, refer to the variant specifications or contact us to confirm before ordering for load-critical applications. Are these springs corrosion resistant? These springs are made from steel wire. Standard steel offers good mechanical properties but has limited corrosion resistance in wet or chemically aggressive environments. For outdoor or humid applications, consider applying a light coating of oil or grease after installation. If you require stainless steel or zinc-plated variants, contact us to confirm availability. What is the difference between free length and compressed length? Free length is the natural, unloaded length of the spring as listed in the variant options. Compressed length (solid height) is the minimum length when all coils are fully closed under maximum load. For most applications, you should select a free length that allows adequate travel (stroke) within your mechanism without fully compressing the spring to solid height, which can cause permanent set. Can I use these springs in a DIY robotics or maker project? Yes. The 2 mm wire diameter range with OD options from 12–19 mm is well suited to hobby robotics, 3D printer mechanisms, CNC machine components, and general maker projects. The variety of lengths (15–305 mm) means you can find a spring that fits compact enclosures or longer-stroke linkages. Select the OD and length that match your design's spring pocket and required travel. How many pieces come in each order? Pack size depends on the length variant selected. Shorter lengths (15–50 mm) are typically available in packs of 10 pieces. Medium lengths (60–200 mm) come in packs of 5 pieces. Longer lengths (300–305 mm) are available in packs of 3 pieces. The exact pack size is shown in the Packaging option in the variant selector above. How do I measure my existing spring to find the right replacement? Use a caliper to measure: (1) wire diameter — the thickness of the wire itself; (2) outer diameter — the widest point across the coil; (3) free length — the total length of the uncompressed spring. Match these three measurements to the variant options. If your existing spring is slightly compressed or deformed, measure the wire diameter and OD first, then estimate the original free length from the mechanism's travel range. 🛒 Select your wire dia × outer dia, length, and pack size above, then add to cart. { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How do I choose the right outer diameter for my application?", "acceptedAnswer": { "@type": "Answer", "text": "Measure the bore your spring will sit inside, or the shaft it will slide over. The spring outer diameter should be slightly smaller than the bore. Use the variant selector to match the OD to your measured dimensions." } }, { "@type": "Question", "name": "What load can a 2 mm wire diameter compression spring handle?", "acceptedAnswer": { "@type": "Answer", "text": "Load capacity depends on the outer diameter, free length, and number of active coils. A 2 mm wire diameter spring suits light-to-medium duty applications such as latches, small actuators, and tool mechanisms." } }, { "@type": "Question", "name": "Are these springs corrosion resistant?", "acceptedAnswer": { "@type": "Answer", "text": "These springs are made from steel wire. Standard steel has limited corrosion resistance in wet environments. For outdoor use, apply a light coating of oil or grease after installation." } }, { "@type": "Question", "name": "What is the difference between free length and compressed length?", "acceptedAnswer": { "@type": "Answer", "text": "Free length is the natural unloaded length of the spring. Compressed length is the minimum length when all coils are fully closed. Select a free length that allows adequate travel without fully compressing the spring to solid height." } }, { "@type": "Question", "name": "Can I use these springs in a DIY robotics or maker project?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The 2 mm wire diameter range with OD options from 12–19 mm suits hobby robotics, 3D printer mechanisms, CNC components, and general maker projects." } }, { "@type": "Question", "name": "How many pieces come in each order?", "acceptedAnswer": { "@type": "Answer", "text": "Pack size depends on the length variant: shorter lengths (15–50 mm) come in 10 pcs, medium lengths (60–200 mm) in 5 pcs, and longer lengths (300–305 mm) in 3 pcs." } }, { "@type": "Question", "name": "How do I measure my existing spring to find the right replacement?", "acceptedAnswer": { "@type": "Answer", "text": "Use a caliper to measure wire diameter, outer diameter, and free length. Match these three measurements to the variant options in the selector above." } } ] } Show more