Introduction to 12 Point Screws - JINGBANG

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What are 12-point screw?

12-point screws, often referred to as 12-point flange screws, feature a flange diameter and head thickness comparable to that of socket head cap screws. This design allows them to effectively replace socket head cap screws in various applications.

The head of a 12-point screw is characterized by twelve evenly spaced points arranged in a star-like pattern. This unique design enables the screw to be tightened or loosened with a standard wrench from multiple angles. Additionally, the flange provides a larger bearing surface than typical hex screws, enhancing the distribution of clamping force and improving overall load handling.

The driver of a 12-point screw uses two overlapped hexagon shapes, creating 12-points and a flanged underside. These are also referred to as ferry cap screws or 12-point flange screws.

What are the benefits of using 12-point screws?

Using 12-point screws offers several advantages over other types of fasteners:

. Higher Torque Capacity: The twelve points on the head increase the contact area between the wrench and the screw, allowing it to withstand higher torque levels without damaging the head or stripping the threads.

. Improved Resistance to Stripping: The star-like design of the head minimizes the risk of stripping under high torque or vibration, ensuring a secure grip and reducing the chances of the screw becoming stuck.

. Easier Installation and Removal: The twelve-point configuration allows for access from multiple angles with a standard wrench, making installation and removal more convenient, especially in tight or awkward spaces.

Applications of 12-Point Screws

. High Clamp Load Situations: Commonly used in the oil and gas industry where strong, reliable fastening is essential.

. Tight Spaces: Ideal for areas where hex socket cap screws may not fit, allowing for versatile installation options.

. Heavy Equipment: Utilized in mining, transportation, and agricultural machinery, requiring high strength and corrosion resistance.

. Heavy-Duty Machinery: Effective in stamping applications and earth-moving equipment like bulldozers and excavators.

Comparing 12-Point Fastener Grades:

Different grades of 12-point fasteners offer varying strengths and durability:

– Grade 8: Often used in automotive applications due to high strength and resistance to corrosion.

– Grade 9 (A574): Typically found in aerospace applications, known for exceptional strength.

– Grade 10.9: A high-strength steel bolt widely used in construction and industrial settings, suitable for high clamp loads in engine components and suspensions.

– Grade 12.9: An alloy steel bolt designed for the highest strength and durability, utilized in critical applications like aerospace and military equipment where failure is not an option.

Selecting the appropriate grade of 12-point screw is crucial for ensuring the safety and reliability of the systems in which they are employed.

The Controversy of 6 vs 12 Point Screws

The debate over whether 6-point or 12-point screws are superior continues among engineers and users. Proponents of 12-point screws argue that the increased number of contact points reduces the likelihood of rounding off during use. The additional points also provide a larger surface area for load distribution, potentially enhancing performance under high torque conditions.

However, opinions vary, and the choice between the two often depends on the specific application rather than a clear-cut superiority. Ultimately, the decision should consider the benefits of using a 12-point screw against the additional costs associated with their production and use, ensuring that it aligns with the project’s requirements.

DIN VS ISO Standards

ISO (International Organization for Standardization) and DIN (Deutsches Institut für Normung or German Institute for Standardization) are both vital organizations that set standards for industrial fasteners, including 12-point fasteners. Each provides guidelines for dimensions, materials, and performance, ensuring compatibility and interchangeability among fasteners. However, there are notable differences between the two.

One primary difference lies in the thread form: ISO standard fasteners utilize a metric thread form, while DIN standards allow for both metric and unified thread forms. Metric threads are more prevalent in Europe, whereas unified threads are common in North America. Additionally, DIN standard fasteners generally boast a higher strength rating compared to their ISO counterparts. DIN standards also tend to be more comprehensive, covering a wider array of sizes and materials, making them more detailed in comparison to ISO standards.

How to Choose Your 12-Point Screw Supplier

When looking for a supplier of 12-point fasteners, several key factors should guide your decision:

1. Experience: Opt for a company with substantial industry experience. An experienced supplier is likely to possess the knowledge and expertise necessary to provide high-quality fasteners tailored to your specific requirements.

2. Reputation: A good reputation can provide reassurance regarding the reliability and performance of the fasteners. Research reviews and testimonials to gauge the experiences of other customers.

3. Product Quality: Evaluate the quality of the fasteners offered. Look for suppliers that utilize high-grade materials and adhere to stringent manufacturing processes. Ensure their products meet relevant industry standards and regulations.

4. Customer Service: Strong customer service and support are vital. Choose a supplier that is responsive to inquiries and capable of providing assistance with any issues that may arise during your purchasing process.

By considering these factors, you can ensure that you select a supplier that delivers high-quality 12-point fasteners that meet your needs while providing dependable customer support.

A bout jingbang

With over 15 years of experience in the industry, JingBang offers a wide range of high-quality 12-point screws in various grades, materials, colors and sizes to meet the specific needs of different applications.