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  1. Home
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  3. 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. The catalog information has been updated with the "Technical Document: Handbook on the Mechanical Properties of Fasteners Made of Carbon Steel and Alloy Steel."
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  • Mar 25, 2019
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Mar 25, 2019

The catalog information has been updated with the "Technical Document: Handbook on the Mechanical Properties of Fasteners Made of Carbon Steel and Alloy Steel."

第一工業 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)
We have published a document summarizing excerpts from JIS B 1052-2:2014 "Mechanical Properties of Fasteners Made of Carbon Steel and Alloy Steel Part 2: Nuts with Strength Classifications - Coarse and Fine Threads" for customers handling screws. The document includes the scope of application, representation of nut styles, design of bolt-nut assemblies, guaranteed load test forces, hardness, and other mechanical properties for nuts made of carbon steel and alloy steel. Customers considering the use of nuts made of carbon steel and alloy steel are encouraged to take a look. As a precision fastener manufacturer, we handle a wide variety of bolt and nut products. Please feel free to consult us regarding product inquiries or any other concerns you may have.
Technical Documentation: Handbook on the Standards for Screws "Mechanical Properties of Carbon Steel and Alloy Steel Fasteners"
Technical Documentation: Handbook on the Standards for Screws "Mechanical Properties of Carbon Steel and Alloy Steel Fasteners"
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Handbook explaining the standard for screws: "Mechanical properties of carbon steel and alloy steel fasteners"
This is a document excerpted from JIS B 1052-2:2014 "Mechanical properties of carbon steel and alloy steel fasteners Part 2: Nuts with strength classifications for coarse and fine threads".

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Hot press-in type insert (outsert) nut "SSOO nut"

Suppresses deformation of resin products. Special shape that is less likely to slip even under high torque. High pull-out strength also reduces the number of screw components and contributes to weight reduction.

The "SSOO Nut" features fine irregularities on the surface of the shaft to enhance torque resistance performance. It is a heat-pressed insert nut that achieves "difficulty in rotation" and "high pull-out strength." Even when tightened with high torque, it does not slip, preventing damage to resin products. Additionally, its excellent pull-out strength contributes to weight reduction by reducing the number of components. Available sizes include M4, M5, M6, and M8. 【Features】 ■ Shape designed to prevent slipping and rotation, protecting resin products from damage ■ Contributes to weight reduction through the reduction of components and downsizing ■ Torque strength and pull-out strength have been verified through testing ■ Proven track record as an automotive component *You can download PDF materials such as verification test data. For more details on specifications and pilot holes, please feel free to contact us.

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SSOI Nut "High Torque Insert Nut"

This is a strong insert nut that prevents slippage (co-rotation and idling) caused by bolt tightening and protects resin products from damage.

Insert nuts for resin (plastic) have traditionally utilized knurled, square, and hexagonal shapes, which have raised concerns about the nuts deforming the resin and spinning freely (slipping or idling) when bolts are tightened with high torque. As a result, we received strong requests from customers to develop insert nuts with shapes that can withstand high torque (high torque strength). We conducted research, development, and prototyping in-house and devised an original shape of insert nut that can handle high torque. It is designed for use during resin molding and also boasts excellent tensile strength (pull-out strength). 【Features】 - Strong nuts that prevent spinning (slipping or idling) and protect resin products from damage. - A unique octagonal shape that enables "high torque tightening," which has not been available before. - We have realized a shape that is difficult to spin, as requested by many customers. For more details, please contact us or download the catalog.

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Bag nut JIS Type 3 "Cap nut"

The bag nut is the original of JIS Type 3! We offer a variety of product series including iron, stainless steel, titanium, and weld (welding) nuts.

The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap that is press-formed onto a nut. Since its release, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. You can find it in places close to you, so please remember Daiichi Kogyo when you see it. 【Features】 ○ The head is hollow, making it lightweight and allowing male threads to be inserted to the tip of the cap, preventing exposure of the threaded part. ○ The design is smart and has excellent decorative qualities. ○ It is standardized and can be mass-produced. For more details, please contact us or download the catalog.

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Bag Nut "SS-UFO Cap Nut"

It is a bag nut that can be tightened with just one driver, even in narrow spaces!

The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap formed by pressing onto a nut. Since its launch, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. From this bag nut series, we offer the "SS-UFO Cap Nut," which can be tightened with a screwdriver. The "SS-UFO Cap Nut" is a special bag nut with recesses (such as a cross hole) in the cap part. Even in tight spaces where a wrench cannot be used, this "SS-UFO Cap Nut" can be tightened with just one screwdriver. Please consider it in cases where hex nuts are difficult to tighten due to design constraints, or when you want to improve workability in small and narrow spaces. There are two head shapes available: pan (cross hole) and truss (cross hole). For more details, please contact us or download the catalog.

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Bag Nut JIS Type 3 "Titanium Cap Nut"

The weight is about two-thirds that of iron! Titanium bag nuts (cap nuts) that are resistant to salt damage, rust, chemicals, and heat.

The founder of Daiichi Kogyo Co., Ltd., Akira Suzuki, was the first in Japan to manufacture and sell a bag nut (JIS Type 3 cap nut) with a cap pressed onto a nut. Since its release, it has received positive feedback for being lighter and more affordable compared to traditional cutting types, and it has evolved into a wide variety of forms to suit various applications. From this bag nut series, we offer lightweight and highly corrosion-resistant titanium cap nuts. 【Features】 ○ Lightweight (titanium is about two-thirds the weight of iron and half the weight of copper) ○ Excellent corrosion resistance, chemical resistance, and heat resistance ○ Smart design with excellent decorative qualities ○ Standardized and suitable for mass production 【Standard Sizes】Hexagonal type: Compatible with sizes M6 to M12. *Some are made to order. For more details, please contact us or download the catalog.

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Nuts / Daiichi Kogyo Co., Ltd.

Nut. It is mainly used in transportation equipment parts and is also engaged in research and development.

Nuts are one of the essential mechanical components for fastening products and are used in various machinery structures. Our company, as a total fastener manufacturer supporting Japanese industry, produces and sells a wide variety of bolt products, including hex nuts, hex flange nuts, weld nuts, wheel nuts, cap nuts, insert nuts, and outsert nuts. We also have manufacturing and sales bases overseas, including in China and India, to meet our customers' needs. We have developed original products such as the "hard-to-turn" insert nut "SSOI nut" for high torque applications and the "hard-to-turn and hard-to-remove" outsert nut "SSOO nut," which are now in mass production. If you are interested, please feel free to contact us.

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Related catalog(7)

Product Information: "SSOO Nut (High Torque Compatible Heat-Press Insert Nut/Outsert Nut)"

Product Information: "SSOO Nut (High Torque Compatible Heat-Press Insert Nut/Outsert Nut)"

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Technical Report on High Torque Compatible Outsert Nuts (SSOO Nuts)

Technical Report on High Torque Compatible Outsert Nuts (SSOO Nuts)

TECHNICAL
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Product Information: "SSOI Nut (High Torque Compatible Insert Nut)"

Product Information: "SSOI Nut (High Torque Compatible Insert Nut)"

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High Torque Compatible Insert Nut (SSOI Nut) Technical Report

High Torque Compatible Insert Nut (SSOI Nut) Technical Report

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Product Information "SS-Cap Nut"

Product Information "SS-Cap Nut"

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Product Information: Titanium Cap Nut (Bag Nut)

Product Information: Titanium Cap Nut (Bag Nut)

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Product Information: "SS-UFO Cap Nut (Bag Nut)"

Product Information: "SS-UFO Cap Nut (Bag Nut)"

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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)
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Truck berth vehicle detection

It's not too late to address the "2024 Problem." Why not immediately reduce drivers' waiting times?

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Are you making progress on measures for the "2024 Problem"? The management of drivers' working hours is becoming stricter, and in the logistics field, reducing "waiting time for loading" has become an urgent issue. To address this challenge, our company, Hotron, proposes the "Vehicle Detection Ultrasonic Sensor 'HM-UX2'," which instantly grasps the availability of loading bays. The 'HM-UX2' contributes to the resolution of waiting times by accurately understanding the availability status, reducing unnecessary waiting and queuing, and shortening waiting times, thereby alleviating the burden on drivers! By replacing the "eyes" of your loading bay management with this high-precision sensor, why not start taking measures against the "2024 Problem"? Take a look at the product features: "Can it accurately detect availability?" "Can we really use it in our company?" "I just want to know the cost, even if it's an estimate." If you have any questions or requests, please feel free to consult us first.

Aug 08, 2025

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Regarding the response during the summer vacation period.

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We sincerely apologize for the inconvenience, but we will be closed for summer vacation during the following period. Closure period: August 9 (Saturday) to August 17 (Sunday), 2025 Inquiries received during this period will be addressed sequentially starting from August 18 (Monday). We appreciate your understanding and cooperation.

Aug 08, 2025

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High-Performance Materials Week [Osaka] 13th High-Performance Plastics Exhibition Thank You for Attending

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Thank you very much for visiting our booth at the "High-Performance Materials Week [Osaka] 13th High-Performance Plastics Exhibition." Thanks to you, we had many visitors and were able to conclude the event successfully. In addition to the "PPLB-445" displayed on the day, we have a variety of products available. For those who were unable to measure samples at the venue, we offer a trial measurement service. Furthermore, for those who would like to know more about our products and services, we also accept online meetings. We welcome inquiries from those who attended as well as those who could not make it this time due to scheduling conflicts. Please feel free to contact us.

Aug 08, 2025

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【New Product Information】Wireless display "NW2991-JP" with long battery life and low power consumption released.

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Aioi System is pleased to announce the release of the low-power wireless display "NW2991-JP," which achieves long battery life. This product supports 920MHz band wireless communication and can be operated in conjunction with wired displays. It can be easily integrated into existing systems by simply adding a master unit. With a high-speed response time of under one second and a variety of display functions for text and barcodes, it supports a wide range of applications. ▼ For more details, please see the press release linked below ▼ ■ Main Features - Maintenance-free design with a battery life of one year (low power consumption) - Compatible with mixed operation with wired displays - High-speed response (under one second) and diverse display formats - Stable communication in the 920MHz band ■ You can see the actual product at the exhibition This product will be displayed at the TOPPAN booth during the International Logistics Comprehensive Exhibition 2025, 4th INNOVATION EXPO. We invite you to visit the venue, see the actual product, and experience its performance. Dates: September 10 (Wed) - 12 (Fri), 2025 Venue: Tokyo Big Sight (Halls 4-8) Booth No: 5-907 (TOPPAN booth) Exhibition official website ▶ linked below We sincerely look forward to your visit.

Aug 08, 2025

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Measurement of cosmetics

Thank you for visiting the Monozukuri World (Measurement, Inspection, and Sensor Exhibition).

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Thank you very much for visiting our booth at the "Monozukuri World (Measurement, Inspection, and Sensor Exhibition) 2025." Thanks to you, we had many visitors, and the event concluded successfully. In addition to the "PPLB-445" showcased on the day, we have a variety of products available. For those who were unable to conduct sample measurements at the venue, we offer a trial measurement service. Furthermore, for those who would like to learn more about our products and services, we also accept online meetings. We welcome inquiries from those who attended, as well as those who were unable to come this time due to scheduling conflicts. Please feel free to reach out to us.

Aug 08, 2025

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  • イプロスがリアル展示会を主催します! AI/DX 営業・マーケティング展 出展社募集中 リード数・商談数が止まらない!新しいリアル展示会を提供 会期 2026年3月24日(火)~25日(水) 会場 東京ビッグサイト東4ホール 出展概要資料を進呈!
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