{"product_id":"compression-spring-various-size-4-10mm-diameter-12mm-length-pressure-small","title":"Compression Spring Various Size 4 - 10mm Diameter \u0026 12mm Length Pressure Small","description":"\u003cdiv class=\"hdiy-desc\"\u003e\n\u003cdiv class=\"hdiy-overview\"\u003e\n\u003ch2\u003eCompression Springs 4–10mm Diameter, 12mm Length — Reliable Force for Precision Mechanisms\u003c\/h2\u003e\n\u003cp\u003eWhen a loose fit, inconsistent rebound, or undersized spring causes your mechanism to fail mid-cycle, the entire assembly pays the price. Engineers, makers, and repair technicians working on compact actuators, jigs, fixtures, and electronic enclosures need springs that deliver repeatable force in tight spaces — every single time.\u003c\/p\u003e\n\u003cp\u003eThese compression springs are made from stainless steel wire with diameters ranging from 0.6 mm to 1 mm (0.024\"–0.039\"), wound to a free length of 12 mm (0.47\"). Outer diameters span 4 mm to 10 mm (0.16\"–0.39\"), giving you a broad selection matrix to match your bore or housing. Each pack contains 10 pieces of a single size combination.\u003c\/p\u003e\n\u003cp\u003eTypical use cases include spring-loaded plunger assemblies in CNC tooling, button-return mechanisms in electronic enclosures, tension-balancing in small robotic joints, and compression buffers in 3D printer extruder carriages — all applications where a compact compression spring with consistent spring rate is critical to performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-compat\"\u003e\n\u003cspan class=\"hdiy-compat-icon\"\u003e🔧\u003c\/span\u003e Compatible with standard spring pockets, bores, and housings sized 4–10 mm OD. Suitable for light-load compression applications in mechanical assemblies, electronics, robotics, and DIY projects.\u003c\/div\u003e\n\u003ch2\u003e✅ Key Features of These Compression Springs\u003c\/h2\u003e\n\u003cdiv class=\"hdiy-features\"\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n\u003ch3\u003eStainless Steel Construction\u003c\/h3\u003e\n\u003cp\u003eWound from corrosion-resistant stainless steel wire, these springs maintain structural integrity in humid, mildly corrosive, or outdoor-adjacent environments without surface treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📐\u003c\/span\u003e\n\u003ch3\u003eWide Size Matrix\u003c\/h3\u003e\n\u003cp\u003eOuter diameters from 4 mm to 10 mm paired with wire diameters from 0.6 mm to 1 mm give you precise control over spring rate and load capacity for your specific application.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n\u003ch3\u003eConsistent 12 mm Free Length\u003c\/h3\u003e\n\u003cp\u003eAll variants share a uniform 12 mm (0.47\") free length, simplifying design when you need to swap wire gauge or OD without changing your housing depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e🔄\u003c\/span\u003e\n\u003ch3\u003eRepeatable Compression Cycle\u003c\/h3\u003e\n\u003cp\u003eClose-wound coil geometry ensures uniform load distribution across the spring body, reducing set and fatigue in repetitive compression-release cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n\u003ch3\u003e10-Piece Pack\u003c\/h3\u003e\n\u003cp\u003eEach order ships as a 10-piece set of a single size combination — ideal for prototyping, repair stock, or small-batch production runs where you need spares on hand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan class=\"hdiy-icon\"\u003e⚙️\u003c\/span\u003e\n\u003ch3\u003eBroad Application Fit\u003c\/h3\u003e\n\u003cp\u003eSized for light-to-medium load applications including spring-loaded plungers, button returns, latch mechanisms, extruder carriages, and sensor mounts across CNC, robotics, and electronics builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-table-wrap\"\u003e\n\u003ch2\u003e📐 Technical Specifications — Compression Springs\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFree Length\u003c\/th\u003e\n\u003ctd\u003e12 mm (0.47 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOuter Diameter\u003c\/th\u003e\n\u003ctd\u003e4 mm \/ 5 mm \/ 6 mm \/ 7 mm \/ 8 mm \/ 9 mm \/ 10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eWire Diameter\u003c\/th\u003e\n\u003ctd\u003e0.6 mm \/ 0.7 mm \/ 0.8 mm \/ 0.9 mm \/ 1.0 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Type\u003c\/th\u003e\n\u003ctd\u003eCompression\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eEnd Type\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSpring Rate\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eQuantity per Pack\u003c\/th\u003e\n\u003ctd\u003e10 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eNatural (uncoated stainless)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-faq\"\u003e\n\u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I choose the right outer diameter for my application?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eMeasure the inner diameter of your spring pocket or bore, then select an OD that is 0.2–0.5 mm smaller to allow free movement without binding. For example, a 10 mm bore typically pairs well with a 9 mm OD spring. Use the variant selector above to choose your OD.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between wire diameter options (0.6 mm vs 1 mm)?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eWire diameter directly affects spring rate and load capacity. A thicker wire (1 mm) produces a stiffer spring with higher load capacity, while a thinner wire (0.6 mm) yields a softer spring suited for lighter return forces. Choose based on the force your mechanism requires at the compressed length.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre these springs corrosion resistant?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. These springs are made from stainless steel, which provides good resistance to rust and mild corrosion in humid or outdoor-adjacent environments. They are not rated for immersion in strong acids or chlorinated solutions — for those environments, contact us to confirm suitability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eCan I use these springs in a 3D printer or CNC machine?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eYes. The 12 mm free length and 4–10 mm OD range make these springs well-suited for 3D printer bed leveling, extruder carriage returns, and CNC tooling plungers. Select the OD and wire diameter that match your existing spring pocket dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat load can these springs handle?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eLoad capacity varies by wire diameter and OD combination. Thicker wire and smaller OD generally produce higher spring rates. Exact load values depend on the specific variant — if you need precise spring rate data for engineering calculations, contact us to confirm before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre the springs sold individually or in packs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eEach order includes 10 pieces of a single size combination (one OD + one wire diameter). If you need multiple sizes, add each size variant to your cart separately.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the compressed (solid) length of these springs?\u003c\/summary\u003e\n\u003cdiv class=\"hdiy-faq-body\"\u003e\n\u003cp\u003eSolid length depends on the number of coils and wire diameter for each variant. As a conservative estimate, solid length is typically 30–50% of the 12 mm free length for these wire gauges. Contact us to confirm the exact coil count for your selected variant if solid height is a critical design constraint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"hdiy-cta\"\u003e🛒 Select your diameter and wire gauge above, then add to cart.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"HomeDIYer","offers":[{"title":"12 mm \u0026 0.6 mm \/ 5 mm \/ Stainless steel \u0026 10pcs","offer_id":52449239499026,"sku":"LXX6DFQ991x1","price":2.46,"currency_code":"USD","in_stock":true},{"title":"12 mm \u0026 0.6 mm \/ 6 mm \/ Stainless steel \u0026 10pcs","offer_id":52449239531794,"sku":"LXX6DFQ1009x1","price":2.46,"currency_code":"USD","in_stock":true},{"title":"12 mm \u0026 0.6 mm \/ 7 mm \/ Stainless steel \u0026 10pcs","offer_id":52449239564562,"sku":"LXX6DFQ1027x1","price":2.46,"currency_code":"USD","in_stock":true},{"title":"12 mm \u0026 0.6 mm \/ 8 mm \/ Stainless steel \u0026 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