Shape: Push Up Type
• Wrench Hole Shape: Hex
• Body Material: 304 Stainless Steel
• Initial Load (Range) (n): 0.01~50
• Pin Plunger Type: Spherical

Spring plunger, also known as positioning column, wave screw, spring screw, etc., presses the front end pin until it sinks into the body, and relies on the built-in spring to push the front end pin out. It belongs to the product of up and down travel and can be used for mold demolding and workpiece lifting,
Positioning and other applications can be widely used in low to medium precision mechanical devices, fixtures, molds, automation machinery, etc.
Product Features
The specifications are complete, meeting various sizes, lengths, and load requirements.
The main body is made of stainless steel, and there are two types of front end pins: stainless steel and resin.
The stroke can be fine tuned by twisting the depth of the screw.
♢ Spring plunger is a product with up and down strokes, which can be used for mold demolding, workpiece lifting, positioning, etc. It can be widely used in medium and low precision mechanical devices, fixtures, molds, automation machinery, etc
In precision fixture design and machining setups, managing lateral forces without compromising workpiece positioning is a daily reality on the shop floor. Relying on standard detent components for lateral workholding often leads to pin binding, premature wear, and workpiece deflection.
Mold assembly precision directly dictates manufacturing throughput. Minor component failures cause catastrophic tool damage, unacceptable scrap rates, and severe production bottlenecks. Engineers face constant challenges on the floor.
Quick positioning, alignment, indexing, and securing components in sheet metal or thin-walled enclosures presents a strict mechanical limitation. You face insufficient material thickness to support standard threaded hardware.
Specifying the wrong spring plunger often results in micro-misalignments, premature component wear, or catastrophic part ejection failures during high-speed machining and automation cycles.
In precision engineering, the reliability of positioning, indexing, and holding mechanisms depends entirely on the point of contact between the plunger and the workpiece.
Component failure in indexing, positioning, or ejecting mechanisms frequently traces back to a single engineering oversight: specifying the wrong material for the operating environment.
The relentless demand for miniaturization in medical devices, aerospace components, and consumer electronics requires mechanical hardware that fits microscopic footprints without sacrificing tactile feedback, holding force, or the ability to facilitate easy positioning and removal of parts.
Precise component positioning in mechanical assemblies dictates the difference between seamless indexing and mechanical binding. A fraction of a millimeter in plunger travel matters. Engineers must control this movement to ensure reliable machine operation.
Standard parts failing? Learn how to select a custom spring plunger manufacturer for precise force curves, extreme durability, and reliable scale.
Prevent contamination and costly recalls in food processing. Discover how to specify 316L hygienic spring plungers for strict CIP compliance.
Prevent stripped threads and assembly downtime. Compare metric vs. inch spring plungers, verify tap drill sizes, and ensure flawless installation.
Specify reliable spring plungers for medical devices. Master sterilization-safe materials, micro-sizing, and custom forces for compliant assemblies.
A push button locking pin is only as reliable as its resistance to the operational environment. High shear strength and positive locking mechanisms fail prematurely if corrosion compromises the internal spindle, spring, or detent balls.
Hardware failure in mission-critical environments carries heavy hidden penalties. A degraded fastener rarely just halts a production line. It actively creates severe safety risks and dangerous compliance liabilities for your entire team.
In heavy-duty industrial and aerospace applications, secure fastening is not optional. A single failure in a quick-release mechanism can trigger severe safety hazards. It can cause costly equipment damage or lead to immediate OSHA compliance violations.
Specifying fastening hardware in load-bearing environments carries incredibly high stakes. Mechanical failure is simply not an option. You rely on these components to hold massive structures and critical machinery together under immense stress.
Specify the wrong dimensions for a push button locking pin, and the assembly either fails to lock entirely or suffers from excessive axial play. This loose tolerance accelerates mechanical wear. The most common point of failure in procurement involves confusing "overall length" and "grip length."
Exacting engineering environments leave absolutely no room for guesswork. A fraction of a millimeter often determines whether an assembly holds under immense pressure or fails catastrophically.
In mission-critical applications—from aerospace rigging to medical structural supports—the failure of a quick-release fastener is not just a maintenance nuisance. It is a system-level vulnerability. Engineers often over-index on static shear strength when evaluating these components.
Industrial engineers often face a frustrating terminology paradox. You might hear procurement teams use hardware terms loosely. They ask for ball lock pins today. They ask for push button pins tomorrow. They assume these represent completely different fastening systems.