Insert Nut Product List and Ranking from 10 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

Insert Nut Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

  1. 第一工業 Shizuoka//others 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)
  2. ヱトー Kanagawa//Trading company/Wholesale
  3. 廣杉計器 Kanagawa//others
  4. 4 池田金属工業 Osaka//Building materials, supplies and fixtures manufacturers
  5. 4 東京鋲兼 Tokyo//others
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Insert Nut Product ranking

Last Updated： Aggregation Period:Jul 23, 2025～Aug 19, 2025
This ranking is based on the number of page views on our site.

  1. Special press technology insert nut ヱトー
  2. [Technical Information] Basic Knowledge of Screws: "Textbook on Screws Learning from the Basics" 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)
  3. [SSOO Nut Adoption Case] Resin Intercooler Parts 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)
  4. Insert nuts: low cost and easy to handle! 東京鋲兼
  5. 4 Stainless Insert Nut 'IRU-0000/W/S/SW' 廣杉計器

Insert Nut Product List

16～30 item / All 45 items

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What is the nut that made cost reduction for EVs a reality?! 【Case Study Introduction】

What is the nut that made cost reduction for EVs a reality?! 【Case Study Introduction】

From "strong" to "cheap"? We achieved cost reduction for EV cars with a small nut. Let me share the secret!

"Cheaper" even a little. "Lighter" even a little. The SSOO nut has contributed to cost reduction for EV vehicles with its performance. ■ High torque compatible heat-pressed insert nut (outsert nut) 'SSOO Nut' Application: Electric component cases for EV vehicles Number used: 19 pieces per unit Initially set usage number during the development stage: 23 pieces per unit. With the strong fastening power of the SSOO nut, we reduced the number from 23 to 19 while ensuring sealing performance. ● Achieved cost reduction Cost reduction was realized by reducing the number of components. - Cost reduction due to the reduction in the number of nuts - Cost reduction due to the reduction in the number of bolts - Cost reduction due to the reduction in tightening work hours ● Achieved weight reduction → Also effective for improving fuel efficiency of EV vehicles - Weight reduction of 20g per unit just from the nuts - When combined with bolts, achieved more than double the "lightness" - Space reduction for fasteners allows for miniaturization of parts → Further weight reduction is possible The SSOO nut has achieved high pull-out strength and torque resistance. For more details on the "required pull-out strength" and "required free rotation torque" of this case, please feel free to contact us.

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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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[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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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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Insert nut

Insert nut

Insert nut

Insert nuts are pressed and inserted into the insertion holes formed during molding using pressure and heat insertion methods to create threads. 【Product List】 ○ Dodge Insert: HSD/HFD - Cross-slit shape - Usable for thin-walled counterpart materials ○ Bit Insert: HSB/HSB-Z/HFB - General-purpose type - Cost-effective and well-balanced ○ Ultra-Sert: HUDII - Tapered shape - Easy to set and has good thermal conductivity ○ Ultra-Sert: HUDIV - Asymmetrical knurled shape - Excellent tensile and torque strength ○ Mini Bit Insert: HMIB-Z - Mini size - Suitable for miniaturization of counterpart materials ● For other functions and details, please contact us.

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Insert nut "IRB"

Insert nut "IRB"

A comprehensive manufacturer of spacers that handles round pins, square pins, pin sockets, and more for pin headers.

The "IRB" is an insert nut compliant with RoHS. 【Specifications】 ■Material: Brass (C3604BD) with cadmium content of less than 75ppm ■Finish: Nickel plating (Ni) ■RoHS compliant product ■Order quantity: 50 pieces or more *For more details, please refer to the PDF document or feel free to contact us.

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Stainless Insert Nut 'IRU-0000/W/S/SW'

Stainless Insert Nut 'IRU-0000/W/S/SW'

Introducing RoHS2 compliant products! Here are screw-in stainless steel insert nuts without plating!

The "IRU-0000/W/S/SW" is a stainless steel insert nut made from free-cutting stainless steel (SUS303). You can choose between having slits or not, and whether to apply a locking agent or not. The locking agent LOCTITE 516 is a high-viscosity, non-toxic, thixotropic, water-soluble pre-coating agent. 【Lineup】 ■ No slits, no locking agent applied: IRU-0000 ■ No slits, locking agent applied: IRU-0000W ■ With slits, no locking agent applied: IRU-0000S ■ With slits, locking agent applied: IRU-0000SW *For more details, please refer to the PDF document or feel free to contact us.

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Aluminum insert nut 'IRL-0000K/KW/B/BW'

Aluminum insert nut 'IRL-0000K/KW/B/BW'

No slip! Aluminum insert nuts with crab zinc plating or black anodized treatment.

The "IRL-0000K/KW/B/BW" is a screw-in aluminum insert nut. The material is lead-free free-cutting aluminum (KS26) with a lead content of 300ppm or less. We offer "IRL-K" and "IRL-KW" with a Kanizen plating treatment, and "IRL-B" and "IRL-BW" with a black anodizing treatment. Additionally, you can choose between no anti-loosening coating and with anti-loosening coating. 【Lineup】 ■ Kanizen plating, no anti-loosening coating: IRL-0000K ■ Black anodizing, no anti-loosening coating: IRL-0000B ■ Kanizen plating, with anti-loosening coating: IRL-0000KW ■ Black anodizing, with anti-loosening coating: IRL-0000BW *For more details, please refer to the PDF document or feel free to contact us.

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Brass insert color (for simultaneous molding) 'ICM'

Brass insert color (for simultaneous molding) 'ICM'

Introducing insert nuts for simultaneous molding! We accept orders starting from 50 pieces.

We would like to introduce our brass insert color "ICM." The material is brass (C3604BD) with a cadmium content of less than 75ppm. It is a RoHS2 compliant product without plating. We offer products that accommodate various sizes. Please feel free to contact us when you need assistance. 【Specifications】 ■ Material: Brass (C3604BD) with cadmium content of less than 75ppm ■ Treatment: Without plating *For more details, please refer to the PDF document or feel free to contact us.

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