nut Product List and Ranking from 43 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

nut Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

  1. 大阪フォーミング Osaka//Building materials, supplies and fixtures manufacturers
  2. NCH Japan（日本エヌ・シー・エイチ株式会社） Tokyo//others
  3. ハードロック工業 Osaka//others
  4. 4 第一工業 鋲螺事業部(ネジ・ボルト・ナット等締結部品　製造販売.　静岡県浜松市) Shizuoka//others
  5. 5 東京衡機エンジニアリング Tokyo//Building materials, supplies and fixtures manufacturers
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nut Product ranking

Last Updated： Aggregation Period:Oct 01, 2025～Oct 28, 2025
This ranking is based on the number of page views on our site.

  1. Anti-seize and anti-wear agent "ThreadEase Ultra Aerosol" NCH Japan（日本エヌ・シー・エイチ株式会社）
  2. Smart Hyper Load Nut (Locking Nut) 能重製作所
  3. Locking nut "Smart Hyper Road Nut" 東京衡機エンジニアリング
  4. [NETIS Registration] Nut to Prevent Loosening *Product Sample Giveaway 大阪フォーミング
  5. 5 Demonstrates anti-loosening effect! 《Hex Nut with Disc Spring》 大阪フォーミング

nut Product List

151～165 item / All 457 items

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With this nut, you'll be convinced! High torque compatible SSOO nut.

With this nut, you'll be convinced! High torque compatible SSOO nut.

Introducing the SSOO nut, which protects resin parts and enables high-torque tightening. We will showcase examples of weight reduction and cost benefits made possible by the SSOO nut!

The SSOO nut is a heat-pressed insert nut (outsert nut) that achieves "difficulty in rotation" and "high pull-out strength." 【High Torque Compatibility】 Due to its special octagonal shape (Octa Lobular), it is resistant to free spinning and co-spinning, protecting resin components and allowing for high torque tightening. 【Difficult to Pull Out】 By providing unevenness on the shaft, pull-out strength is improved. It also has high vibration resistance, enabling a reduction in the number of components and weight savings. 【Cost】 Using a widely available material (SWCH10R), there is no need to worry about fluctuations in material costs. High-speed production through forging and rolling allows for cost-effective mass production. 【Usage Method】 Since it can be back-filled through heat pressing, it is easy to handle. This document provides detailed information about the features, specifications, and examples of the SSOO nut. If you are considering the use of insert nuts for resin, please take a look.

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Technical Data: High Torque Compatible Cap Insert Nut

Technical Data: High Torque Compatible Cap Insert Nut

Packed with technical data on SSOO Nut PLUS! We are giving away technical materials that include data from tensile tests and torque strength tests for free!

SSOO Nut PLUS adds a cap to the trusted SSOO insert nut! It enables insert compatibility. This is a new insert nut from the Octa Lobular(R) series! This document is a technical report that includes abundant test data such as tensile tests and torque strength tests for the SSOO Nut PLUS. ● High Torque Compatibility It ensures the torque resistance performance of the SSOO nut, which boasts 1.8 times the torque resistance compared to knurled products. It does not slip or rotate even when tightened with high torque. 【Verification Experiment】 Torque Strength Test (Material: PP): 31N·m (approximately 1.8 times improvement in turning torque compared to knurled products) Pull-Out Load Test (Material: PP): 2713N (approximately 1.2 times improvement in pull-out load compared to knurled products) ● Added Peace of Mind with Horizontal Cap! - The cap prevents resin from wrapping around, ensuring secure fastening. - The horizontal cap can be used in tight spaces. - Metal touch prevents loosening. It can be used as both an insert and an outsert, allowing you to choose specifications according to your application. For detailed technical information, please refer to the download.

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We can assist you in a wide range from automobiles to buildings! [Featured Nuts with Proven Results]

We can assist you in a wide range from automobiles to buildings! [Featured Nuts with Proven Results]

We have a proven track record. Nuts that run around the world. Insert nuts that help reduce costs and weight. Non-loosening three-blade nuts that can be used for disaster prevention supplies.

We are widely contributing from automobiles to buildings! [Featured High-Performance Nuts with Proven Results] ■ Bag Nuts (Cap Nuts): Running all over the world! - A wide range of sizes from automobiles to buildings (M3~M36). - The cap at the tip ensures safety and enhances appearance. - The first JIS 3 type cap nut manufactured and sold in Japan. Available in cutting-edge titanium material. ■ High Torque Compatible Insert Nuts (Outsert Nuts): Achieved cost reduction and weight reduction! - Adopted for resin parts in next-generation vehicles (electric vehicles and hydrogen vehicles). - High torque resistance allows for a reduction in the number of fasteners, achieving cost savings. - Contributes to the lightweight of components. ■ Lock Nuts (3-Blade Type): Used for disaster prevention supplies because they do not loosen! - Meets safety requirements for vibration dampers and highway sound barriers. - Protects people with nursing beds. - Widely applicable to transportation equipment such as automobiles and motorcycles, as well as buildings. Technical documents and detailed information for each nut can be viewed from downloads. Please feel free to contact us for case studies and proven results.

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Understanding Delayed Fracture of Screws: Basics of Delayed Fracture Due to Hydrogen Embrittlement

Understanding Delayed Fracture of Screws: Basics of Delayed Fracture Due to Hydrogen Embrittlement

What is delayed fracture? Why does hydrogen embrittlement occur? What are the prevention measures? I will explain the basics of delayed fracture and hydrogen embrittlement in an easy-to-understand manner.

Are you familiar with "delayed fracture of screws"? "Delayed fracture" refers to the phenomenon where a static stress (tensile or bending load) is applied at room temperature for a certain period of time, and then it suddenly fractures without any apparent plastic deformation. Despite the absence of large or repeated loads, the bolt suddenly fails... It might be due to delayed fracture. In fact, the mechanism behind "delayed fracture" has not been fully elucidated. The phenomenon of hydrogen embrittlement is considered to be an important factor. - What is delayed fracture? What are its testing methods? - What is hydrogen embrittlement? What are the countermeasures? This is a technical document that provides a basic understanding of these topics. Please refer to the PDF for more details. As a specialist in manufacturing both bolts and nuts, our company conducts performance testing and evaluation from the development stage at our R&D center to ensure that we meet our customers' performance requirements. We are also available for technical consultations. Please feel free to reach out to us.

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[Case Study Introduction] "Non-Rotating Nuts" Contribute to Weight Reduction and Cost Savings!

[Case Study Introduction] "Non-Rotating Nuts" Contribute to Weight Reduction and Cost Savings!

We received feedback from customers: 'The metal touch is wide and easy to use without worrying about direction' and 'The dimensions match, making it strong against pull-out and compatible with high torque.'

SSOO nut, a high-torque press-fit insert nut with a special octagonal shape that can be fastened without damaging the resin. With high torque resistance and pull-out strength, it not only satisfies customer requirements but also contributes to weight reduction and cost reduction by decreasing the number of parts and labor hours. 【Contributing to weight reduction and cost savings!】 ■ Case 1: Electric equipment case for EV vehicles <Effect> Reduced the number of screw parts from 23 per unit to 19 per unit, achieving cost savings. The nut alone contributes to a weight reduction of 20g per unit! ■ Case 2: Hydrogen discharge parts for FCV <Effect> Reduced the number of screw parts from 6 per unit to 4 per unit, achieving cost savings. A weight reduction of 8g, approximately 17%! ■ Case 3: Automotive filter parts (new plant-based resin material) <Effect> Reduced the number of screw parts from 3 per unit to 2 per unit, achieving cost savings. A weight reduction of 4g (approximately 17%)! 【Protecting the resin without loosening or spinning!】 ■ Case 1: Fastening the handle and body of a chainsaw [Satisfaction] The nut spun due to significant vibration during use. Only the SSOO nut satisfied the high torque fastening requirements. It protects the resin and does not spin. For more details on the cases, please feel free to contact us. You can view technical materials, including test results for spinning torque and pull-out strength, available for download.

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[Technical Data Free Offer] You can understand the basics of "Screw Performance Evaluation."

[Technical Data Free Offer] You can understand the basics of "Screw Performance Evaluation."

We are engaged in product development and performance evaluation to shape our customers' requests. We provide testing evaluation equipment and examples of evaluations. We will teach you the basics of performance evaluation.

Screws are small components, but they play a significant role as functional parts in "fastening." Performance evaluation is essential to shape our customers' requests. For example, we have a series of screws designed for special octagonal shapes in resin. The starting point was a customer's request for a nut that wouldn't rotate when embedded in resin. Using FEM analysis, we selected the optimal shape from 40 different designs. Collaborating with the production technology and manufacturing departments, we developed an insert nut that can withstand high torque fastening. To turn requests into reality, it is necessary to have evaluation capabilities to ensure proposed performance. During the development stage, we need to consider performance requirements and mass production feasibility, and after development, we must confirm the design performance and mass production quality, among various evaluations. Our company is equipped with various testing and evaluation facilities, including those developed in collaboration with academia. You can understand the basics of screw performance evaluation, including what kind of equipment is used and what evaluations are conducted. We also provide actual evaluation examples. Please take a look at our development and evaluation tests to shape our customers' requests. More details can be downloaded, and feel free to contact us with any inquiries.

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I will teach you the basics of fastening screws for resin. <Technical materials provided>

I will teach you the basics of fastening screws for resin. <Technical materials provided>

Are you having trouble with "fastening resin"? You can fasten resin with "bolts + nuts." You will gain basic knowledge about screws specifically for resin.

Are you struggling with "fastening of resin"? With resin, you can achieve fastening using "bolts + nuts" by utilizing dedicated screws. Dedicated screws include insert nuts and insert bolts that are embedded in the resin. In softer resins compared to iron, embedded bolts or nuts can rotate together, leading to deformation or breakage of the resin. Have you ever experienced deformation of resin products due to "nut rotation"? Our original development of dedicated screws for resin (Octa Lobular(R) series) features a special octagonal head shape that ensures high torque resistance and high pull-out strength. Even when tightened with high torque, it prevents "rotation" and "pull-out," protecting resin products. You can choose from various types of insert nuts (simultaneous molding type, press-fit type, and both with caps) and insert bolts (both simultaneous molding and post-embedding options) according to your specifications. If you're wondering, "What is an insert nut?" please refer to our technical document "Basic Knowledge of Insert Nuts." It clearly explains the usage of insert nuts and compatible resins, covering the "basics of insert nuts." You can view it via PDF download.

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[Technical Information] Basic Knowledge of Screws: "Textbook on Screws Learning from the Basics"

[Technical Information] Basic Knowledge of Screws: "Textbook on Screws Learning from the Basics"

The textbook on screws created by a group of screw specialists, 'Learning About Screws from the Basics.' You can understand fundamental knowledge from types of screws to fastening design. Available for free!

Daiichi Kogyo is a specialized group that develops and manufactures both bolts and nuts. Although they are both "fasteners," bolts and nuts differ in materials, processing methods, manufacturing equipment, and required performance. 【What a specialized group can do】 ● Consideration of optimal materials and shapes: The "development/design capability" of a specialized group 　→ Utilization of FEM analysis and knowledge of materials ● Evaluation and analysis of fasteners with data backup: The "evaluation capability" of a specialized group 　→ Performance evaluation from individual parts to actual machines ● Reduction of prototype lead time and mass production: The "production technology/manufacturing technology capability" of a specialized group 　→ In-house mold production and utilization of FEM analysis For more details, please visit the 【Daiichi Kogyo Co., Ltd. Fastener Division Fastening Parts Site】 below. "Useful information about fasteners" is also available. Please take a look. There is a "Textbook on Fasteners: Learning from the Basics" created by a specialized group in fasteners. - What are fasteners - The mechanism of how fasteners tighten - Fastener loosening - Fastener design You can understand the basic knowledge of fasteners. It is available for free. Please download and take a look.

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[Case Study] You can understand the reasons for adopting high-torque insert nuts.

[Case Study] You can understand the reasons for adopting high-torque insert nuts.

You can see the benefits of using the "SSOO Nut," an insert nut that is strong against pull-out and supports high torque. Examples of parts and molding methods are currently being published.

The SSOO nut is a "heat press-in type insert nut (outsert nut)" that achieves high "torque resistance performance" and "pull-out strength." It prevents the nut from rotating (spinning) or pulling out during high torque tightening, ensuring safe fastening of resin products. The SSOO nut has solved various problems for our customers. 【Case 1】 - High tightening torque is required, but the insert nut spins. → It meets tightening requirements with high torque resistance performance, fastening resin components without spinning. 【Case 2】 - To reduce weight, we want to decrease the number of screws used. → It achieves a reduction in the number of screws used with high pull-out strength while ensuring fastening strength. Additionally, it has realized many benefits such as reducing environmental impact and responding to strong vibrations. For more details, please refer to the "SSOO Nut Adoption Case Collection." If you are struggling with fastening resin at high torque, please take a look at the materials. You will understand why we were able to develop the original SSOO nut that can handle high torque tightening. Please check it out from the link.

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Diverse product lineup 1

Diverse product lineup 1

We will shape your ideals.

To realize our philosophy of providing high-quality products that meet the diverse needs of our customers at lower prices, we will utilize the know-how we have cultivated so far with our technical capabilities. By establishing a variety of processing technologies, we will provide fastening components that best match various conditions and respond to our customers' trust.

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Diverse product lineup 2

Diverse product lineup 2

We will shape your ideals.

To realize our philosophy of providing high-quality products that meet the diverse needs of our customers at lower prices, we will leverage the know-how and technical skills we have cultivated so far. By establishing a variety of processing technologies, we will provide fastening components that best match various conditions, thereby responding to our customers' trust.

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Prototype evaluation confirmation and equipment of Maruichi.

Prototype evaluation confirmation and equipment of Maruichi.

We will create prototypes based on the design and specifications. Then, by conducting rigorous evaluations based on the know-how we have cultivated over many years, we will ensure quality.

Our company conducts precise analysis, verification, and evaluation of products using specialized fastening analysis equipment, and by simulating actual assembly lines, we set optimal fastening conditions. Based on the vast amount of data obtained in this way, we derive the best quality and cost. Additionally, issues with machinery often manifest first as looseness or damage in fastening components. Therefore, by investigating the actual equipment, we analyze the causes of problems and propose solutions, contributing to improved reliability. Our company has various facilities for evaluation, allowing us to conduct in-house assessments.

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Insert nuts: low cost and easy to handle!

Insert nuts: low cost and easy to handle!

All produced in Japan! We offer a lineup of bit inserts and heat-pressed inserts after molding, enhancing the bonding of synthetic resins!

We handle various types of "insert nuts" from Tokai Metal Industry. Our lineup includes the "Bit Insert SB," which is easy to use and excels in balance in terms of holding power and cost, the flanged "Bit Insert FB," and the "Ultra Insert UD II," which specializes in holding power. Additionally, we can manufacture nuts for various applications. Please feel free to contact us. 【Partial Lineup】 ■ Bit Insert SB ■ Bit Insert FB ■ Ultra Insert UD II ■ Ultra Insert UD IV ■ Dodge Insert SD ■ Dodge Insert FD *For more details, please refer to the PDF materials or feel free to contact us.

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UltraSart UDIV

UltraSart UDIV

The method of use is hot press fitting! Introducing the world standard insert with high retention strength and high durability!

"UltraSert UDIV" is a standard insert nut with excellent holding power. The material is brass (iron, stainless steel, aluminum), and the screw management standard is JIS Grade 2. If you encounter issues with the surface of molded products shrinking in tapered holes when designed with "UltraSert II," please consider this option. 【Features】 ■ Usage method: Heat press fitting ■ Compatible resin: Thermoplastic ■ Material: Brass (iron, stainless steel, aluminum) ■ Screw management standard: JIS Grade 2 *For more details, please refer to the PDF document or feel free to contact us.

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Selection Guide Presentation: Insert Nut

Selection Guide Presentation: Insert Nut

Improving the strength of the part where the screw is tightened! There are various benefits!

An "insert nut" is a fitting used to attach screws to resin materials such as plastic. By using an insert nut, the strength of the screw hole is improved, preventing cracks in the resin and enabling a high degree of design flexibility. Tokai Metal Industry Co., Ltd. provides high-quality insert nuts through a thorough quality control system and has received high praise from industries that require high reliability, such as the automotive industry. In addition to a variety of standard shapes, we can also create custom products tailored to customer requests. We can conduct strength tests regarding compatibility with resin materials as well. We are also available to assist with any other concerns or inquiries. For more details, please refer to the PDF materials or feel free to contact us.

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