Product Description
Product description
Anti-theft screws
Anti-theft screws usually have a special head structure, such as plum CHINAMFG with posts, Y slots, etc., to prevent disassembly with conventional tools. Only specific tools can properly install and remove anti-theft screws, increasing security
Custom specifications
| Product name | Anti-theft screws |
| material | Carbon steel, stainless steel, brass, etc |
| Surface treatment | Galvanized or CHINAMFG request |
| specification | M1-M16 |
| Head shape | Customized head shape according to customer requirements |
| Slot type | Plum CHINAMFG with column, Y groove, triangle, square, etc. (customized according to customer requirements) |
| certificate | ISO14001/ISO9001/IATF16949 |
Company Introduction
Why choose us?
authentication
The company has passed the ISO10012, ISO9001, ISO14001, IATF16949 quality management system certification, and won the title of high-tech enterprise
Customize the process
Partners
Packaging and delivery
FAQ
Q: Are you trading company or manufacturer ?
1. We are factory. we have more than 25 years experience of fastener making in China.
Q:What is your main product?
1.We mainly produce screws, nuts, bolts, wrenches, rivets, CNC parts, and provide customers with supporting products for fasteners.
Q:What certifications do you have?
1.We have certificated ISO9001, ISO14001 and IATF16949, all of our products conform to REACH,ROSH.
Q:What is your terms of payment ?
1.For the first cooperation, we can do 30% deposit in advance by T/T, Paypal,Western Union,Money gram and Check in cash, the balance paid against the copy of waybill or B/L.
2.After cooperated business, we can do 30 -60 days AMS for support customer business
Q:Can you provide samples? Is there a fee?
1.If we have matching mould in stock, we would provide free sample, and freight collected.
2.If there’s no matching mould in stock, we need to quote for the mould cost. Order quantity more than 1 million (return quantity depends on the product) return
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| Material: | Carbon Steel |
|---|---|
| Type: | Cheese Head |
| Groove: | Flower Word |
| Connection: | Common Bolt |
| Head Style: | Cup |
| Standard: | DIN, GB, ANSI, BSW, JIS, GOST, Nonstandard |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
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| Customization: |
Available
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What are the signs that indicate a need for eye bolt screw replacement or maintenance?
Eye bolt screws require regular inspection to identify signs of wear, damage, or other issues that may necessitate replacement or maintenance. Detecting these signs early helps prevent failures, ensure safety, and maintain optimal performance. Here’s a detailed explanation of the signs that indicate a need for eye bolt screw replacement or maintenance:
- Visible Damage: Inspect the eye bolt screws for visible signs of damage, such as cracks, bending, or deformation. Any visible damage indicates a potential weakness that can compromise the structural integrity of the screws.
- Thread Damage: Examine the threads of the eye bolt screws for signs of wear, stripping, or cross-threading. Damaged threads can result in reduced strength, improper engagement, or difficulty in tightening or loosening the screws.
- Corrosion: Check for signs of corrosion on the surface of the eye bolt screws. Corrosion can weaken the material and compromise the load-carrying capacity of the screws. Look for rust, pitting, or discoloration, especially in outdoor or corrosive environments.
- Loosening: If eye bolt screws consistently loosen or require frequent retightening, it may indicate a problem. Check for proper torque and ensure that the screws remain securely fastened. Persistent loosening may be a sign of thread damage, insufficient engagement, or inadequate tightening.
- Excessive Wear: Evaluate the overall condition of the eye bolt screws for signs of excessive wear. This includes wear on the shank, head, or bearing surfaces. Excessive wear can reduce the load capacity and compromise the performance of the screws.
- Noise or Vibration: Unusual noises, vibrations, or rattling during operation can indicate loose or damaged eye bolt screws. If the screws are not securely fastened or if there is excessive clearance, it can lead to unwanted movement, noise, or vibration.
- Deformation of Connected Components: Monitor for signs of deformation or damage in the components connected to the eye bolt screws. If the connected components show signs of stress, bending, or deformation, it may indicate issues with the screws or improper load distribution.
- Change in Load Capacity: If the load requirements change or increase for the application, it is important to reassess the load capacity of the eye bolt screws. If the screws are not rated to handle the new loads, replacement or reinforcement may be necessary.
Regular inspections and prompt action based on these signs are critical to maintaining the integrity and performance of eye bolt screws. When any of these signs are detected, it is advisable to consult the manufacturer’s recommendations, industry standards, or seek the expertise of a qualified professional to determine the appropriate course of action, whether it involves replacement, repair, or maintenance.
By staying vigilant and addressing potential issues in a timely manner, you can ensure the reliability, safety, and longevity of eye bolt screws in various applications.
Can eye bolt screws be used for both temporary and permanent installations?
Yes, eye bolt screws can be used for both temporary and permanent installations, depending on the specific application and requirements. Let’s explore the use of eye bolt screws in both scenarios:
Temporary Installations:
Eye bolt screws are commonly employed in temporary installations where a temporary attachment point is needed for lifting or securing loads. Some examples of temporary installations include:
- Construction and Rigging: Eye bolt screws can be used during construction or rigging projects to provide temporary attachment points for lifting equipment, securing temporary structures, or supporting temporary loads. They offer a quick and convenient solution for temporary lifting operations and can be easily installed and removed as needed.
- Events and Exhibitions: Eye bolt screws are often used in event setups, such as stage installations, exhibition displays, or hanging decorations. They provide a temporary attachment point for suspending lighting, audio equipment, banners, or other temporary fixtures. Once the event or exhibition is over, the eye bolt screws can be removed without causing permanent damage to the venue.
- Temporary Storage and Transport: Eye bolt screws can be used in temporary storage or transport applications to secure loads during transit or storage. They provide a reliable attachment point for securing items with ropes, cables, or straps, ensuring that they remain stable and protected during temporary storage or transportation.
Permanent Installations:
Eye bolt screws are also suitable for permanent installations that require a long-term or permanent attachment point. Some examples of permanent installations include:
- Industrial and Manufacturing: Eye bolt screws are commonly used in industrial and manufacturing settings to create permanent attachment points for lifting heavy machinery, equipment, or structural components. These installations are designed to be long-lasting and provide a reliable and secure connection for ongoing lifting operations.
- Marine and Boating: Eye bolt screws with corrosion-resistant materials, such as stainless steel, are frequently used in marine and boating applications. They serve as permanent attachment points for securing ropes, cables, or chains on boats, docks, or other marine structures, ensuring safe and reliable mooring or towing operations.
- Building and Infrastructure: Eye bolt screws are utilized in building and infrastructure projects for permanent installations. They are often embedded into concrete or other structural materials to create permanent attachment points for lifting, suspension, or anchoring purposes. These installations are designed to withstand long-term loads and provide a durable and dependable attachment solution.
It is important to note that regardless of whether eye bolt screws are used for temporary or permanent installations, proper installation techniques, load calculations, and adherence to safety guidelines are essential to ensure the effectiveness, reliability, and safety of the installations.
How does the design of an eye bolt screw contribute to its strength and durability?
The design of an eye bolt screw plays a crucial role in determining its strength and durability. Various design features are incorporated to ensure that the eye bolt screw can withstand the intended loads and provide a reliable and long-lasting attachment point. Here are some ways in which the design contributes to the strength and durability of an eye bolt screw:
- Material Selection: Eye bolt screws are available in different materials, such as steel, stainless steel, or other alloys. The choice of material depends on the specific application and environmental factors. High-strength materials like stainless steel or alloy steel are commonly used to enhance the strength and corrosion resistance of the eye bolt screw.
- Threaded Shank: The threaded shank of an eye bolt screw allows for easy installation by screwing it into a pre-drilled hole or threaded receptacle. The design of the thread profile and pitch ensures a secure and tight fit. The threads distribute the applied load over a larger area, reducing stress concentration and increasing the overall strength of the attachment.
- Eye Design: The design of the eye, or the looped end, of an eye bolt screw is critical for its performance. The eye is typically circular or oval-shaped, providing a smooth and continuous attachment point. The shape and size of the eye are designed to accommodate the intended hardware, such as cables, ropes, or chains, ensuring a proper fit and reducing the risk of slippage or failure.
- Shoulder or Collar: Some eye bolt screws feature a shoulder or collar between the shank and the eye. This shoulder provides additional support and prevents the bolt from pulling through the attachment point. The presence of a shoulder enhances the load-bearing capacity and stability of the eye bolt screw, making it suitable for heavy-duty applications.
- Load Ratings and Compliance: Eye bolt screws are designed to meet specific load ratings and comply with industry standards and safety regulations. The design takes into account the anticipated loads and forces that the eye bolt screw will experience. Load ratings are determined through testing and ensure that the eye bolt screw can safely handle the intended loads without failure or deformation.
- Corrosion Resistance: In environments where corrosion is a concern, eye bolt screws are designed with corrosion-resistant materials or coatings. Stainless steel or galvanized steel eye bolt screws are commonly used in applications where exposure to moisture, chemicals, or harsh weather conditions is expected. This design choice enhances the durability and longevity of the eye bolt screw.
By considering these design factors, manufacturers can produce eye bolt screws that are capable of withstanding the intended loads, provide a secure attachment point, and resist environmental factors that could compromise their strength and durability. It is crucial to choose eye bolt screws that are designed and rated for the specific application to ensure safe and reliable performance.
editor by Dream 2024-04-26
China Haitian injection molding machine accessories, various models of pin shaft steel sleeve screw shaft condition monitoring
Condition: New
Warranty: Unavailable
Applicable Industries: Manufacturing Plant, Machinery Repair Shops, Farms, Printing Shops
Weight (KG): 2
Showroom Location: None
Video outgoing-inspection: Provided
Machinery Test Report: Provided
Marketing Type: Ordinary Product
Warranty of core components: Not Available
Core Components: shaft
Structure: Other
Material: Carbon steel, alloy steel
Coatings: Other
Model Number: 521015
Product name: worm wheel and worm screw shaft
Process: CNC Turning Machining
Size: 35*146
Keyword: Injection Machine used Shaft
Tolerance: ±0.01
Application: Industrial Machine
Weight: 2KG
Packaging Details: Carton Box
Port: HangZhou
Details Images Product packaging Company Profile HangZhou Haiderui Automation Equipment Co., Ltd.HangZhou Haiderui Automation Equipment Co., Ltd. was founded in 2011. It is a professional company engaged in domestic and foreign injection molding machine maintenance, domestic injection molding machine research and development, production and sales, injection molding machine servo energy-saving transformation, injection molding machine spare parts sales, Factory price Japan CZPT bearing NA4906 needle roller bearing automation equipment research and development, non-standard / Processing of special mechanical parts and sales of peripheral auxiliary machines of injection molding machines, etc. Our Factory Manufacturing Technique Certifications Order Process FAQ
| 1.How can I get the price? “-We usually quote within 24 hours after we get your inquiry(Except weekend and holidays). -If you are very urgent to get the price, please email us or contact us in other ways so that we can offer you a quote.” 2. Can I buy samples placing orders? -Yes.Please feel free to contact us. 3.What is your lead time? “-It depends on the order quantity and the season you place the order. -Usually we can ship within 7-15 days for small quantity, and about 30 days for large quantity.” 4.What is your payment term? -T/T,Western Union,MoneyGram, bending part and Paypal.This is negotiable. 5.What is the shipping method? “-It could be shipped by sea, by air or by express(EMS,UPS,DHL,TNT,FEDEX and ect). Please confirm with us before placing orders.” 6. How do you make our business long-term and good relationship? “-1. We keep good quality and competitive price to ensure our customers benefit ; -2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.” 4 Axis Nema23 Stepping Motor 57hs 1.8degree Hybrid Bipolar cnc stepper motor and controller Cnc Stepper Motor series | ||||||||
Lead Screws and Clamp Style Collars
If you have a lead screw, you’re probably interested in learning about the Acme thread on this type of shaft. You might also be interested in finding out about the Clamp style collars and Ball screw nut. But before you buy a new screw, make sure you understand what the terminology means. Here are some examples of screw shafts:
Acme thread
The standard ACME thread on a screw shaft is made of a metal that is resistant to corrosion and wear. It is used in a variety of applications. An Acme thread is available in a variety of sizes and styles. General purpose Acme threads are not designed to handle external radial loads and are supported by a shaft bearing and linear guide. Their design is intended to minimize the risk of flank wedging, which can cause friction forces and wear. The Centralizing Acme thread standard caters to applications without radial support and allows the thread to come into contact before its flanks are exposed to radial loads.
The ACME thread was first developed in 1894 for machine tools. While the acme lead screw is still the most popular screw in the US, European machines use the Trapezoidal Thread (Metric Acme). The acme thread is a stronger and more resilient alternative to square threads. It is also easier to cut than square threads and can be cut by using a single-point threading die.
Similarly to the internal threads, the metric versions of Acme are similar to their American counterparts. The only difference is that the metric threads are generally wider and are used more frequently in industrial settings. However, the metric-based screw threads are more common than their American counterparts worldwide. In addition, the Acme thread on screw shafts is used most often on external gears. But there is still a small minority of screw shafts that are made with a metric thread.
ACME screws provide a variety of advantages to users, including self-lubrication and reduced wear and tear. They are also ideal for vertical applications, where a reduced frictional force is required. In addition, ACME screws are highly resistant to back-drive and minimize the risk of backlash. Furthermore, they can be easily checked with readily available thread gauges. So, if you’re looking for a quality ACME screw for your next industrial project, look no further than ACME.
Lead screw coatings
The properties of lead screw materials affect their efficiency. These materials have high anti-corrosion, thermal resistance, and self-lubrication properties, which eliminates the need for lubrication. These coating materials include polytetrafluoroethylene (PFE), polyether ether ketone (PEK), and Vespel. Other desirable properties include high tensile strength, corrosion resistance, and rigidity.
The most common materials for lead screws are carbon steel, stainless steel, and aluminum. Lead screw coatings can be PTFE-based to withstand harsh environments and remove oil and grease. In addition to preventing corrosion, lead screw coatings improve the life of polymer parts. Lead screw assembly manufacturers offer a variety of customization options for their lead screw, including custom-molded nuts, thread forms, and nut bodies.
Lead screws are typically measured in rpm, or revolutions per minute. The PV curve represents the inverse relationship between contact surface pressure and sliding velocity. This value is affected by the material used in the construction of the screw, lubrication conditions, and end fixity. The critical speed of lead screws is determined by their length and minor diameter. End fixity refers to the support for the screw and affects its rigidity and critical speed.
The primary purpose of lead screws is to enable smooth movement. To achieve this, lead screws are usually preloaded with axial load, enabling consistent contact between a screw’s filets and nuts. Lead screws are often used in linear motion control systems and feature a large area of sliding contact between male and female threads. Lead screws can be manually operated or mortised and are available in a variety of sizes and materials. The materials used for lead screws include stainless steel and bronze, which are often protected by a PTFE type coating.
These screws are made of various materials, including stainless steel, bronze, and various plastics. They are also made to meet specific requirements for environmental conditions. In addition to lead screws, they can be made of stainless steel, aluminum, and carbon steel. Surface coatings can improve the screw’s corrosion resistance, while making it more wear resistant in tough environments. A screw that is coated with PTFE will maintain its anti-corrosion properties even in tough environments.
Clamp style collars
The screw shaft clamp style collar is a basic machine component, which is attached to the shaft via multiple screws. These collars act as mechanical stops, load bearing faces, or load transfer points. Their simple design makes them easy to install. This article will discuss the pros and cons of this style of collar. Let’s look at what you need to know before choosing a screw shaft clamp style collar. Here are some things to keep in mind.
Clamp-style shaft collars are a versatile mounting option for shafts. They have a recessed screw that fully engages the thread for secure locking. Screw shaft clamp collars come in different styles and can be used in both drive and power transmission applications. Listed below are the main differences between these two styles of collars. They are compatible with all types of shafts and are able to handle axial loads of up to 5500 pounds.
Clamp-style shaft collars are designed to prevent the screw from accidentally damaging the shaft when tightened. They can be tightened with a set screw to counteract the initial clamping force and prevent the shaft from coming loose. However, when tightening the screw, you should use a torque wrench. Using a set screw to tighten a screw shaft collar can cause it to warp and reduce the surface area that contacts the shaft.
Another key advantage to Clamp-style shaft collars is that they are easy to install. Clamp-style collars are available in one-piece and two-piece designs. These collars lock around the shaft and are easy to remove and install. They are ideal for virtually any shaft and can be installed without removing any components. This type of collar is also recommended for those who work on machines with sensitive components. However, be aware that the higher the OD, the more difficult it is to install and remove the collar.
Screw shaft clamp style collars are usually one-piece. A two-piece collar is easier to install than a one-piece one. The two-piece collars provide a more effective clamping force, as they use the full seating torque. Two-piece collars have the added benefit of being easy to install because they require no tools to install. You can disassemble one-piece collars before installing a two-piece collar.
Ball screw nut
The proper installation of a ball screw nut requires that the nut be installed on the center of the screw shaft. The return tubes of the ball nut must be oriented upward so that the ball nut will not overtravel. The adjusting nut must be tightened against a spacer or spring washer, then the nut is placed on the screw shaft. The nut should be rotated several times in both directions to ensure that it is centered.
Ball screw nuts are typically manufactured with a wide range of preloads. Large preloads are used to increase the rigidity of a ball screw assembly and prevent backlash, the lost motion caused by a clearance between the ball and nut. Using a large amount of preload can lead to excessive heat generation. The most common preload for ball screw nuts is 1 to 3%. This is usually more than enough to prevent backlash, but a higher preload will increase torque requirements.
The diameter of a ball screw is measured from its center, called the ball circle diameter. This diameter represents the distance a ball will travel during one rotation of the screw shaft. A smaller diameter means that there are fewer balls to carry the load. Larger leads mean longer travels per revolution and higher speeds. However, this type of screw cannot carry a greater load capacity. Increasing the length of the ball nut is not practical, due to manufacturing constraints.
The most important component of a ball screw is a ball bearing. This prevents excessive friction between the ball and the nut, which is common in lead-screw and nut combinations. Some ball screws feature preloaded balls, which avoid “wiggle” between the nut and the ball. This is particularly desirable in applications with rapidly changing loads. When this is not possible, the ball screw will experience significant backlash.
A ball screw nut can be either single or multiple circuits. Single or multiple-circuit ball nuts can be configured with one or two independent closed paths. Multi-circuit ball nuts have two or more circuits, making them more suitable for heavier loads. Depending on the application, a ball screw nut can be used for small clearance assemblies and compact sizes. In some cases, end caps and deflectors may be used to feed the balls back to their original position.
editor by czh 2023-07-03