Product Description
Product Description
High Quality DIN Standard Single Lead Thread 3.5X35 Gypsum Screw
| Material | C1571/1571A/Q195/Q235/45#/55#/22A |
| Surface Treatment | Black/Grey Phosphated, White/Yellow Zinc Plated, Nickel Plated. |
| Thread | Fine Thread, Coarse Thread |
| Diameter | M3.5-M6.3 |
| Length | 19mm-300mm |
| Point | Drill point, Sharp point. |
| Standard | DIN / ISO / GB |
| Packing | Ordinary packaging, Color box, Wooden box packaging, Small carton packaging, Packed in woven bags |
| Logo | If you need, we can provide a logo customization service |
| Delivery time | Normally in 15-30 days |
| Usage | Building construction, decoration field, bicycle parts, wooden furniture, electrical component, household, etc |
Detailed Photos
Product Parameters
Detailed Information of Thread
| Fine thread standard | |||||
| head width | thread diameter | diameter | |||
| 6# | 3.5 | 7.9-8.10 | 3.40-3.60 | 13-19 | 0.5 |
| 7# | 3.9 | 7.9-8.10 | 3.70-3.90 | 25-30 | 0.8 |
| 8# | 4.2 | 7.9-8.10 | 4.0-4.30 | 25-30 | 1.2 |
| 10# | 4.8 | 8.5-9.0 | 4.70-4.90 | 55-90 | 1.5 |
| 100-152 | 2.5 | ||||
| Coarse thread standard | |||||
| head width | thread diameter | diameter | |||
| 6# | 3.5 | 7.9-8.10 | 3.65-3.90 | 13-19 | 0.5 |
| 7# | 3.9 | 7.9-8.10 | 3.90-4.20 | 25-30 | 0.8 |
| 8# | 4.2 | 7.9-8.10 | 4.30-4.60 | 25-30 | 1.2 |
| 10# | 4.8 | 8.5-9.0 | 4.90-5.30 | 55-90 | 1.5 |
Certifications
Packaging & Shipping
Our Advantages:
1. Professional Manufacturer of Screws
and Fasteners in China.
2. Three of our own Factories in ZheJiang , China.
3. 280 sets of automatic production equipment.
4. Technology Team and QC Team.
5. Professional Foreign Trade Service Team.
And Our company:
1: 20 kilometers away from ZheJiang Airport
2: 25 kilometers away from ZheJiang Port
3: 120 kilometers away from ZheJiang Airport
It is very convenient to transport goods!
Company Profile
About Us
ZheZheJiang nruifeng Technology Co., Ltd., was established in 2008 and its business covers fastener design, manufacturing, and export. We have 3 production bases, with a total area of 10,000+ square meters. Our main products include drywall screws, chipboard screws, self-drilling screws, and self-tapping screws. We can also provide other fasteners, like nails, staples, blind rivets, anchors, bolts, and nuts.
We have 200+ sets of automatic production equipment, including wire drawing machines, cold-heading machines, thread rolling machines, tailing machines, and heat-treatment lines. We are your one-stop manufacturer from raw material to final products. Our annual production capacity reaches up to 30,000 tons, 70% of which are exported to different countries and regions.
ZheZheJiang nruifeng Technology Co., Ltd. has been in the fastener industry for nearly 20 years and we can customize all kinds of products per your requirements. We have an established management system and quality control procedure. Excellent quality, competitive price, and timely delivery are the pillars of the company’s foundation. Win-win and long-term cooperation is our final goals when dealing with different clients.
FAQ
Q: What are your Hot sale products?
A: Drywall screws, Chipboard screws, Wood Screws, Self Tapping Screws, Self Drilling Screws, Gypsum Screw, Roofing Screw, Truss Head screws, and other Special screws.
Q: Are you a trading company or manufacturer?
A: We are a manufacturer. Our production manager has over 15 years of production experience on Screws.
Q: How long is your delivery time?
A: Generally it is10-15 days if the goods are in stock. or it is 4-5 weeks if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but consumers should pay the freight first.
Q: Why choose us?
A: 1) Reply to you in 24 working hours.
2) Experienced staff would like to answer all your questions in time.
3) Customized design is available. ODM&OEM are welcomed.
4) Special discounts and protection of sales area provided to our consumers.
5) As an honest exported seller, We are a professional manufacturer, quality quotation, good service, and skilled technicians to ensure our products are finished in high quality and stable features.
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| Material: | Carbon Steel |
|---|---|
| Type: | Round Head |
| Groove: | Cross |
| Connection: | Common Bolt |
| Head Style: | Round |
| Standard: | DIN, GB, GOST |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
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What factors should be considered when selecting lead screws for different mechanical applications?
When selecting lead screws for different mechanical applications, several factors need to be considered to ensure the optimal performance and suitability of the lead screw. Here are some key factors to consider:
- Load Requirements: Determine the maximum axial load and torque that the lead screw will need to support. Consider both static and dynamic loads, as well as any potential overload conditions. Ensure that the selected lead screw has the load-carrying capacity to handle the required loads without excessive deflection or failure.
- Precision and Accuracy: Evaluate the required positioning accuracy and repeatability for the application. Consider the lead screw’s thread pitch, lead error, and backlash characteristics. In applications that demand high precision, such as CNC machines or optical systems, choose lead screws with low backlash and high accuracy to minimize positioning errors.
- Speed and Efficiency: Determine the desired linear speed or travel rate for the application. Consider the lead screw’s thread design, lubrication requirements, and mechanical efficiency to ensure that the lead screw can operate at the required speed with minimal friction and energy loss.
- Environmental Conditions: Assess the operating environment for the lead screw. Consider factors such as temperature variations, humidity, dust, chemicals, and exposure to corrosive agents. Select lead screws with appropriate materials, coatings, and sealing mechanisms to withstand the environmental conditions and ensure long-term reliability.
- Space Constraints: Evaluate the available space for installing the lead screw. Consider the length and diameter of the lead screw, as well as any required support or mounting mechanisms. In tight spaces, stub Acme screws or compact designs may be more suitable.
- Speed and Duty Cycle: Determine the duty cycle of the application, including the frequency and duration of operation at different speeds. Consider the lead screw’s thermal characteristics, lubrication requirements, and the potential for heat generation at high speeds or prolonged operation. Choose lead screws that can handle the anticipated duty cycle without overheating or premature wear.
- Backlash Tolerance: Consider the permissible amount of backlash or play in the system. Backlash refers to the axial movement between the screw and nut when changing direction. Applications that require precise positioning or minimal lost motion, such as machine tools, may require lead screws with low backlash or anti-backlash mechanisms.
- Budget and Cost: Evaluate the budgetary constraints for the application. Consider the cost-effectiveness and value provided by different lead screw options. Compare factors such as initial cost, maintenance requirements, and expected lifespan to select a lead screw that offers the best balance of performance and cost.
By considering these factors, engineers and designers can make informed decisions when selecting lead screws for different mechanical applications. It is crucial to carefully assess the specific requirements of the application and consult with manufacturers or suppliers to ensure the chosen lead screw meets the application’s needs in terms of load capacity, precision, environmental compatibility, and overall performance.
What are the signs that indicate a need for lead screw replacement or maintenance, and how can they be diagnosed?
Lead screws, like any mechanical component, may require replacement or maintenance over time due to wear, damage, or performance degradation. Recognizing the signs of potential issues and diagnosing them accurately is essential for timely intervention. Here are some common signs that indicate a need for lead screw replacement or maintenance, along with diagnostic methods:
- Increased Backlash: An increase in backlash, which is the clearance or play between the lead screw and nut, can signify wear or mechanical issues. Excessive backlash can result in decreased accuracy and precision. Diagnosis: Backlash can be measured using specialized tools, such as dial indicators or laser displacement sensors. Comparing the current backlash with the manufacturer’s specifications can help determine if maintenance or replacement is necessary.
- Unusual Noise or Vibration: Unusual noises, vibrations, or excessive mechanical resonance during operation can indicate misalignment, worn components, or inadequate lubrication. Diagnosis: Careful observation and listening during operation can help identify abnormal noise or vibration. Inspecting the lead screw for signs of wear, checking alignment, and ensuring proper lubrication can help diagnose the underlying issue.
- Reduced Accuracy or Repeatability: If a lead screw system starts exhibiting decreased accuracy or repeatability in positioning, it may indicate wear, misalignment, or damaged components. Diagnosis: Conducting precision tests or comparing the system’s actual position with the desired position can help identify any inconsistencies. Inspecting the lead screw, nut, or associated components for signs of wear or damage can provide further insights.
- Increased Friction or Sticking: If the lead screw system experiences increased friction or sticking during operation, it may indicate inadequate lubrication, contamination, or worn components. Diagnosis: Observing the smoothness of the lead screw’s movement and checking for signs of lubrication deficiency or contamination can help diagnose the issue. Cleaning the lead screw and applying appropriate lubrication may resolve minor friction-related problems.
- Visible Wear or Damage: Visual inspection of the lead screw and nut may reveal signs of wear, corrosion, or physical damage. This can include worn threads, scoring, pitting, or deformation. Diagnosis: Regular visual inspection of the lead screw system is important to identify visible signs of wear or damage. If significant wear or damage is observed, replacement or repair may be necessary.
- Inconsistent or Jerky Movement: If the lead screw system exhibits inconsistent or jerky movement instead of smooth and controlled motion, it may indicate misalignment, binding, or damaged components. Diagnosis: Careful observation of the system’s movement, checking for misalignment, and inspecting the lead screw, nut, or associated bearings for signs of binding or damage can help diagnose the issue.
It’s important to note that proper diagnosis and decision-making regarding lead screw replacement or maintenance may require the expertise of qualified technicians or engineers familiar with the specific application and system requirements. Following manufacturer guidelines, maintenance schedules, and seeking professional assistance can help ensure accurate diagnosis and appropriate actions to maintain or replace the lead screw when necessary.
Can you explain the role of a lead screw in converting rotary motion to linear motion?
A lead screw plays a crucial role in converting rotary motion into linear motion in mechanical systems. It achieves this by utilizing the helical threads on the screw and the corresponding threads on the nut. Here’s a detailed explanation of how a lead screw accomplishes the conversion:
- Helical Thread Design: A lead screw is designed with a helical thread that wraps around its cylindrical shaft. The thread is typically a continuous spiral groove with a specific pitch, which is the distance between adjacent threads. The pitch determines the linear distance the nut will travel when the lead screw makes one complete revolution.
- Matching Threaded Nut: The lead screw is paired with a nut that has threads matching those on the screw. The nut is typically fixed in place while the lead screw rotates. The nut contains internal threads that engage with the external threads of the lead screw.
- Rotary Motion: When the lead screw is rotated, either manually or by a motor-driven mechanism, the helical threads on the screw cause the nut to move linearly along the length of the screw. The direction and magnitude of the linear motion depend on the direction and speed of the screw’s rotation.
- Linear Motion: As the lead screw rotates, the engaged threads between the screw and the nut create a force that translates the rotational motion into linear motion. The helical threads on the screw push against the matching threads in the nut, causing the nut to move along the length of the screw. This results in linear displacement of the nut and any attached components.
- Precision and Control: The pitch of the lead screw determines the linear distance traveled by the nut for each revolution of the screw. By controlling the rotational motion of the lead screw, precise and controlled linear movement can be achieved. This makes lead screws suitable for applications that require accurate positioning or adjustment of components.
- Load Capacity: Lead screws can handle both axial loads (tension or compression forces) and torque. The helical threads distribute the load over a larger surface area, allowing the lead screw to support and transfer significant loads. By incorporating thrust bearings or other supporting elements, the lead screw can handle high loads while maintaining smooth and controlled linear motion.
Overall, the lead screw’s role in converting rotary motion to linear motion relies on the interaction between the helical threads of the lead screw and the matching threads of the nut. This mechanism provides a reliable and precise means to translate rotational motion into linear displacement, making lead screws a valuable component in various mechanical systems and applications.
editor by CX 2024-04-13