OHTA CO., LTD. Product Lineup

This document is a technical material that explains the thread tolerances of the old JIS grades 1 to 3 and the new JIS. It focuses on the tolerances for M6 coarse thread bolts/taps, detailing the importance of thread tolerances and providing an overview of both the old and new JIS. It can be useful for ensuring the compatibility and assembly of threaded components. 【Contents (partial)】 ■ Importance of thread tolerances ■ Overview of old JIS thread tolerances ■ Overview of new JIS thread tolerances ■ Comparison of M6 coarse thread internal thread tolerances (taps) ■ Comparison of M6 coarse thread external thread tolerances (bolts) *For more details, please download the PDF or feel free to contact us.

This document is a presentation material that introduces the basic knowledge of export control regulations necessary for sales representatives. It covers the fundamentals of what export control is, the legal framework including the Foreign Exchange and Foreign Trade Act, and an overview of the export control system. It also includes practical points for sales representatives, as well as examples of violations and associated risks, so please take a moment to read it. 【Contents (partial)】 ■ What is export control? ■ Legal framework of export control ■ Overview of the export control system ■ Main types of regulations: list regulations and catch-all regulations ■ Practical points for sales representatives *For more details, please download the PDF or feel free to contact us.

This document is a proposal that explains the benefits and cost-effectiveness of forging in metal processing. It clearly outlines the basics of forging, the main differences from machining and casting, as well as the advantages and disadvantages of forging. It also includes information on initial costs and cost comparisons, so please take a moment to read it. 【Contents (partial)】 ■ What is forging? ■ Main differences from machining and casting ■ Advantages of forging ■ Disadvantages of forging ■ Expected effects *For more details, please download the PDF or feel free to contact us.

This document is a training material that allows you to learn the essential knowledge of screws, bolts, and hexagon socket bolts in the assembly manufacturing industry. It provides clear explanations of the types and characteristics of screws, the names of their parts, the features of hexagon socket bolts, and strength classifications. It also covers applications in assembly manufacturing and how to read drawings. Please make use of it. 【Contents (partial)】 ■ What are screws, bolts, and hexagon socket bolts? ■ Applications of screws and bolts in assembly manufacturing: Learning through specific examples ■ How to read drawings: Interpreting screw standards ■ Screw selection: Choosing the right screw ■ Precautions for use: Preventing accidents *For more details, please download the PDF or feel free to contact us.

This document provides a detailed analysis of the cost fluctuations of machined parts and sheet metal parts from 2020 to 2025. It includes the factors and impacts of changes in material costs, processing costs, energy costs, and plating costs, primarily driven by disruptions in the global supply chain and soaring energy prices. Recommendations for future cost management are summarized. [Contents (partial)] ■ Background of cost fluctuations: Economic environment from 2020 to 2025 ■ Fluctuations in material costs for machined parts ■ Fluctuations in material costs for sheet metal parts ■ Variations in processing costs and energy costs related to processing ■ Fluctuations in plating costs *For more details, please download the PDF or feel free to contact us.

This document is an analytical report explaining the price trends of φ50 SS400 equivalent and SUS304 from 2020 to 2025. It includes an overview of the steel and stainless steel market from 2020 to 2025, as well as the price trends of SS400 round bars and SUS304 round bars. We hope this analysis will assist in your future procurement strategies and cost management. 【Contents (partial)】 ■ Overview of the steel and stainless steel market from 2020 to 2025 ■ Price trends of SS400 round bars (φ50) ■ Price trends of SUS304 round bars (φ50) ■ What is processing roll margin cost? ■ Price trends of processed SS400 round bars (φ50) *For more details, please download the PDF or feel free to contact us.

This document is a technical material comparing hexavalent chromium and trivalent chromium. It includes the basic principles, purposes, and applications of chromate treatment, as well as the advantages and disadvantages of both hexavalent and trivalent chromium. Information regarding regulatory frameworks such as the RoHS directive is also included, which can assist in the selection of surface treatments. 【Contents (partial)】 ■ What is chromate treatment? ■ Advantages and disadvantages of hexavalent chromium ■ Advantages and disadvantages of trivalent chromium ■ Comparison of rust prevention effects ■ Cost comparison *For more details, please download the PDF or feel free to contact us.

This document is a technical explanation regarding the differences in strength classifications of hexagon socket bolts. It includes definitions and features, general applications, and the importance of strength classifications as basic information about hexagon socket bolts. The overview of strength classifications explains each grade from 4.8 to 12.9, so please make use of it. [Contents] ■ Basic information about hexagon socket bolts ■ Overview of strength classifications ■ Hexagon socket bolts of M22 and above ■ Reasons for differences in strength classifications ■ Effects and countermeasures of strength classification differences ■ Summary *For more details, please download the PDF or feel free to contact us.

This document is a technical material that explains the distinction between CAP screws and hex bolts, which are important in machine design and construction sites. It summarizes the basic information and advantages of both, including differences in head shape, tools used, required space, and tightening force, in an easy-to-understand manner. It is a useful reference, so please take a moment to read it. [Contents (partial)] ■ Basics of CAP screws and hex bolts ■ Advantages of CAP screws ■ Advantages of hex bolts ■ Distinction points: Space ■ Distinction points: Tightening force *For more details, please download the PDF or feel free to contact us.

This document is a presentation that introduces a comparative analysis of the mechanical properties of SNB23 material and equivalent materials. It includes basic characteristics such as the chemical composition of SNB23 material, its main applications, and its positioning within JIS standards, as well as mechanical properties like tensile strength and yield strength. The document compares the mechanical properties of SNB23 material with those of equivalent materials, providing guidelines for appropriate material selection. [Contents (partial)] ■ Introduction ■ Basic characteristics of SNB23 material ■ Mechanical properties of SNB23 material ■ Criteria for selecting equivalent materials ■ Comparison of SNB23 material and equivalent materials *For more details, please download the PDF or feel free to contact us.