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One of the key features of our Captive Screw is its high level of precision. Each screw is manufactured to strict tolerances, ensuring consistent quality and performance. This precision is crucial for applications where a precise fit and secure connection are required. Another notable feature is its anti-vibration locking ability. The design of the captive screw includes a mechanism that prevents the screw from loosening due to vibrations. This is achieved through the unique interaction between the head and the shank, which creates a locking effect. Our captive screw also offers excellent chemical resistance. Made from high-quality materials such as stainless steel or alloy steel, it can withstand exposure to a wide range of chemicals without corroding or deteriorating.
The advantages of our Captive Screw are numerous and make it a preferred choice for many industries. Its high precision ensures that it can be used in applications where accuracy is of utmost importance, such as in precision machinery and medical devices. The anti-vibration locking ability provides peace of mind in applications where equipment is subject to vibrations, such as in automotive engines or industrial machinery. This reduces the risk of components coming loose and causing damage or failure. The chemical resistance of the captive screw makes it suitable for use in harsh environments, such as chemical plants or laboratories. It can withstand exposure to corrosive chemicals, ensuring a long service life. Additionally, the ease of installation and the anti-loss feature contribute to increased efficiency and reduced maintenance costs.
Our Captive Screw finds extensive use in various industries. In the medical device industry, it is used in the assembly of surgical instruments, diagnostic equipment, and implantable devices. The high precision and reliability of our captive screw are essential for ensuring the safety and effectiveness of these devices. In the aerospace industry, captive screws are used in the construction of aircraft and spacecraft. Their anti-vibration and high-strength properties make them suitable for withstanding the extreme conditions of flight. In the industrial machinery industry, captive screws are used to secure various components, such as gears, motors, and frames. Their ability to resist vibrations and provide a secure connection is crucial for the smooth operation of the machinery.
1. What is the thread material of the captive screw?
The thread material of our captive screw depends on the specific model and application requirements. We offer captive screws with threads made from materials such as stainless steel, alloy steel, and brass. These materials are chosen for their strength, durability, and corrosion resistance.
2. Can the captive screw be used in applications with high pressure?
Our captive screws are designed to withstand a certain level of pressure. However, the maximum pressure they can handle depends on the size, material, and design of the screw. For applications with high pressure, it is recommended to consult our technical support team to select the appropriate captive screw.
3. How do I determine the correct torque for tightening the captive screw?
The correct torque for tightening the captive screw depends on several factors, such as the size, material, and application of the screw. We provide torque specifications for each captive screw in our product documentation. It is important to follow these specifications to ensure a secure and proper installation.
4. Is the captive screw suitable for use in food processing equipment?
Our captive screws made from food-grade materials, such as stainless steel, are suitable for use in food processing equipment. These materials are non-toxic and do not contaminate the food. However, it is important to ensure that the screw is properly installed and maintained to prevent any potential contamination.
5. Can the captive screw be customized with a specific coating?
Yes, we offer the option to customize our captive screws with specific coatings, such as zinc plating or black oxide coating. These coatings can provide additional protection against corrosion and enhance the appearance of the screw. Contact our sales team to discuss your customization requirements.

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.
In many industries, fastening delicate components without causing surface damage is a constant challenge. That's where nylon tip set screws come in — a smart and reliable solution for non-marring, vibration-resistant fastening.
When you use a sliding door or open a drawer, you can feel the smooth stop and click. This comes from the ball head plunger and spring plunger inside. A high-quality ball head plunger uses strong materials like 304 stainless steel. This gives you better durability and protects against rust.
You use a plastic ball plunger to move parts gently. Material is important. POM and PA work for everyday jobs. PEEK is better for hot or tough places. Ball plungers keep electronics and molds safe. They protect soft surfaces.
Hygiene is very important in food processing. Every part, even a stainless steel ball plunger, must meet hygiene rules. Clean machines help keep food safe for people. Picking parts that resist germs and rust means you can trust your equipment for years.
You use spring ball plunger technology to get steady preload and close tolerances in your automation equipment. Spring-loaded plungers help you get exact positioning. This makes design and performance better.