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Ball Plungers - Long
• Type: Standard Knob
• Overall Length: Standard
• Mounting Method: Screw-In
• Locking Mechanism: Without Locking Nose
• Operation Knob: Provided
Install with a hex key or slotted ball-nose spring plungers. They have a ball nose that rolls to minimize wear and allow parts to move in and out of position. Made from 440C stainless steel, the nose is hard, wear resistant, and mildly chemical resistant.
Steel bodies are strong and wear resistant. They have a black-oxide finish to resist corrosion in dry environments.
18-8 stainless steel bodies are chemical resistant and may be mildly magnetic.
Spring plungers without thread locker are for use in soft material such as aluminum, in extreme temperatures, and on parts requiring frequent assembly and removal.
Spring plungers with thread locker have a locking element that adds friction to resist loosening.
Extended nose force is the force required to begin to depress the nose. Compressed nose force is the force required to depress the nose flush with the body. When using a plunger as a detent or stop, a lighter nose force with a shallower hole releases more easily, while a heavier force with a deeper hole holds more securely.


standared fabric or export carton

1. Payment Terms-guaranteed that we will never run away
【100% before production】We are taking a enough deposit to start with our production.
【If we are 1 week delayed- refund you 1%】
【If we are 2 week delayed- refund you 2%】
【If we are 3 week delayed- refund you 3%】
【If we are 4 week delayed- refund you 4%】
Dongguan Zhengchen Hardware Co., Ltd.
Main categories: Spring Plunger, Indexing Plunger, FA Automation Part



1.How do you let me trust you.
We have own import & export right, and we are Gold mumber of alibaba and made in china, We get credit guarantee from Alibaba Group. you can make an order by alibaba to us directly.
2.How about your price.
High quality products with reasonable price. Please give me a inquire, I will quoted you a price for you refer at once.
3. How do you control your quality.
We request QC inspect every productions links for each bacth goods.And we can provide you MTC and mill certificate when the goods is finished.
4.Could you provide free samples?
For new customer, We can provide free samples for standard fastener, But the clients will pay the express charges. For old customer,We will send you free samples and pay express charges by ourself.
5.Do you accept small order?
Sure, we can accept any orders, we keep lots of stock for ALL STAINLESS STEEL FASTENER, CARBON STEEL NUT AND PART BOLT
6.How about your delivery time?
General speaking, if the goods is in stock, we can delivery them with 2-5days, If the quantity is 1-2container, we can give you with 18-25days,if the quantity is more than 2 container and you are very urgent, we can let factory priority produce your goods.
8.What is your payment term ?
We can accept T/T,LC for general order ,Paypal and Western union for small order or samples order.
Introducing our top-of-the-line spring plunger, designed to meet the needs of professionals across various industries. Our spring plungers are engineered with precision and accuracy, ensuring that they deliver optimal performance every time.
Featuring a spring-loaded ball or pin, our spring plungers are designed to provide reliable and consistent force to hold workpieces in place or eject parts from punch presses and dies. The spring mechanism is carefully calibrated to ensure that the force applied is just right, providing a secure hold without damaging the workpiece or tooling.
Crafted from high-quality materials, our spring plungers are built to last. They are resistant to wear and tear, corrosion, and other forms of damage, ensuring that they remain in top condition even after prolonged use.
Whether you are a machinist, engineer, or DIY enthusiast, our spring plungers are the perfect tool for your needs. They are easy to install and use, and they provide a reliable and consistent hold that you can count on. So why wait? Invest in our spring plungers today and experience the difference for yourself!
Frequently asked questions about this product (FAQ)
1. What is the function of the ball plunger?
The stroke of the front end ball head is specified, which can be used for temporary positioning, indexing, and other purposes of the workpiece.
2. What is the function of the spring plunger?
The front end is pin shaped and can be used to eject workpieces or stop blocks.
3. What are the meanings of load min and max?
The load min represents the initial load value, and max represents the load value at the maximum pressure limit of the ball head.
4. What is the anti loosening treatment for the ball head plunger?
Fix using an anaerobic gas adhesive filled in microcapsules. Once loose, it will fail, so it is necessary to use a thread with an anaerobic adhesive. When placed at temperatures exceeding 25 degrees Celsius for 72 hours, the anti loosening effect is the most ideal.
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.
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.
In precision industrial environments, every second of assembly time counts. Engineers require reliable, tool-less fastening solutions. You need components built for speed and absolute security. The push button locking pin meets this demand perfectly.
Manual fastening in high-vibration or load-bearing environments often forces a difficult engineering trade-off. Technicians must usually choose between maximum physical security and rapid operational speed. Traditional threaded fasteners require tedious manual tightening.
A push button locking pin acts as a critical failure point in high-load, fast-assembly environments. From aerospace assemblies and line array audio systems to heavy lifting and industrial Lockout/Tagout (LOTO) protocols, these small components carry massive operational stakes.