FEET(SERRATED END)
[ ! ]Screws and pads are not assembled when shipped.
Self-aligning pads serve as stops, supports and thrust pads in fixture construction.
Dongguan Zhengchen Hardware Co., Ltd.
Main categories: Spring Plunger, Indexing Plunger, FA Automation Part
Ball secured against rotation.
Introducing our Swivel Clamping Screw with a smooth ball end bolt, the ideal product for professionals looking for superior performance and reliability. Constructed with precision and durability in mind, this product is perfect for use where maximum rigidity is necessary.
Our Swivel Clamping Screw is designed to securely hold parts with an angled surface without marring or damaging the surface. The smooth ball end bolt ensures a tight grip while preventing any scratches or marks on the surface. With this product, you can work with confidence knowing that your workpiece is held firmly in place.
Crafted from high-quality materials, this Swivel Clamping Screw is built to last and withstand even the toughest of jobs. Its ergonomic design ensures ease of use and convenience, making it an indispensable tool for any professional.
Invest in our Swivel Clamping Screw with a smooth ball end bolt today and experience the ultimate in performance and reliability. Whether you're a DIY enthusiast or a professional, this product is sure to meet your needs and exceed your expectations.



Dongguan Zhengchen Hardware Co., Ltd.
Main categories: Spring Plunger, Indexing Plunger, FA Automation Part



1.How long is your delivery time?
Generally our delivery time is 15 to 30 days . But different products and quantities have different procedures andtiming.we promise that we'll try our best to finish your orders within the shortest time.For more information, pleasecontact us.
2.ls the MOQ fixed?
For most orders,the MOQ can't be lowered according to the required quantities.For stock items,the quantities canbe negotiated.
3.What is the Surface Treatment?
Galvanized, Yellow zinc plated,H DG.
4.What is your material?
stainless steel and carbon steel .It also can according to your requirements.
5.Where is the port of shipment?
FOB:Shenzhen or HongKong.
6.What are your terms of payment?
PAYMENT BY T/T IN ADVANCE , West union,Paypal and etc.
7.Are customized products accepted?
You idea and imagine,we design and make.lt is fully self-customized.
8.Any discount possible if l place an order?
Yes,we have different price ranges (discounts)according to your quantities.You can consult us anytime.
9.Shipping
For samples or small order, can be delivered by express of DHL, UPS, FedEx,TNT, HKDC at the buyerconvenience, or by other express to save the buyer cost or shorten the transit time at the buyer request.& For mass order delivery, can be optional with terms of Ex-work, FOB by air or by sea based on the buyerforwarder or our recommended local forwarder at the buyer convenience.
To save the buyer shipping cost, we can also offer Chinese cheap cost from our local fonwarder for our buyer moreselections.
Usage examples
Dynamic steel ball positioning screw

Engineers constantly seek efficient ways to secure moving parts in complex assemblies. A push-pull spring plunger serves as a critical mechanical component for indexing, positioning, and locking these mechanisms seamlessly.
Engineers often drop a detent pin into a design blindly. You might expect it to handle whatever mechanical forces come its way. However, this assumption introduces severe mechanical risks.
Designing mechanical assemblies often hinges on a single, vital interaction point. You must perfectly match a spring plunger to its mating surface. This tiny engagement zone dictates the tactile feel and reliability of the entire mechanism.
Manufacturing thrives on absolute precision and repeatable actions. Engineers constantly seek reliable mechanical components designed to apply accurate, repeatable spring end-forces in tooling, fixtures, and automated machinery.
Repeatable precision in manufacturing, tooling, and product assembly depends heavily on minor mechanical components. They must function reliably over thousands of continuous cycles to prevent production halts.
In precision machinery and industrial applications, choosing the right mechanical locking or positioning component is critical for reliability, safety, and efficiency. Two common devices used for positioning and locking are indexing plungers and ball lock pins.
Indexing plungers are vital mechanical components used to secure, position, and lock movable parts in machinery, fixtures, jigs, and industrial equipment.
Custom indexing plungers are essential components in specialized machinery, industrial equipment, and precision assemblies.
Indexing plungers are essential mechanical components used across various industries to ensure precise positioning, secure locking, and repeatable alignment in machinery, fixtures, jigs, and other adjustable assemblies.
Indexing plungers are essential components in mechanical assemblies, offering precise positioning, locking, and alignment capabilities. They are widely used in machinery, jigs, fixtures, and industrial equipment, where accurate positioning and repeatable movement are critical.
TIME/VENUE:2026.3.31-4.3 Shenzhen International Conventionand Exhibition Center (Bao'an)BOOTH NO.3-P10
If an indexing plunger starts sticking, failing to seat, or wearing out early, replacing it might "solve" the symptom—but not the cause. Most field issues come from receiving-hole design, alignment stack-up, contamination, or side loading.
In harsh environments, "indexing plunger" is not the full spec. The real spec is: corrosion risk + cleaning method + contamination tolerance + maintenance reality. If you don't design around those, even a premium plunger will feel gritty, stick, or corrode before its expected service life.
"Load rating" sounds simple until a pin bends in the field and everyone asks why. Indexing plunger pins rarely fail from pure axial force. They fail because real assemblies introduce shear, bending, misalignment, and vibration—often all at once.
A standard indexing plunger is designed to re-engage automatically. That's great—until it isn't. In fast changeovers, rotating plates, or safety-critical adjustments, you may need the opposite behavior: the pin must stay retracted until the operator intentionally releases it.
When an indexing plunger "doesn't feel reliable," the issue is often not the plunger. It's the hole. Bore size, chamfer, and engagement depth decide whether the pin finds the target smoothly—or fights burrs, edge damage, and misalignment for the rest of its life.
Did you know that using the wrong set screw can cause permanent damage to delicate components? Whether you're working with polished aluminum, plastic housings, or precision assemblies, a traditional metal set screw might scratch, deform, or even crack your components.
What do medical devices, precision electronics, and high-end furniture have in common? They all require non-marring, precision fastening solutions—and nylon tip set screws are the go-to choice.Standard fasteners often cause more harm than good in delicate assemblies.
Did you know that a single fastener can determine whether your assembly lasts for years or fails within weeks? It's not always about the size or strength of the screw—it's about the application fit. In industries where surface integrity, vibration control, and precision are essential, the nylon tip set screw is often the unsung hero.
"One wrong screw can ruin your entire assembly." That's not an exaggeration—it's a reality many engineers and manufacturers face when choosing between different types of fasteners. Imagine tightening a set screw into a soft aluminum or plastic surface, only to find cracks, scratches, or permanent damage.