池田金属工業 List of Products and Services

We would like to introduce a case where we proposed "Inconel Lock Recoil" to a semiconductor manufacturing equipment manufacturer. During the polishing process, the wafer that was being supported fell and broke. Upon retrieving the parts, we found rust on the wire insert that was inserted into the female thread. After our proposal and subsequent measures, it has been adopted for mass production, and several years have passed without any occurrence of loosening or rust. 【Case Overview】 ■ Issues - The wafer supported during the polishing process fell and broke. - Rust had developed on the wire insert inserted into the female thread. ■ Requirements for Solving the Issues - It must be an effective countermeasure against rotational loosening. - It must be made of a material with excellent chemical resistance. *For more details, please refer to the related links or feel free to contact us.

• Inductor Coil
• Other services

Here is a case study where we proposed "Sea Horse Lock" to a machine tool manufacturer. The components mounted on the rotating body of the product were fastened with hexagon socket flat head bolts M6x25, but "screw loosening" occurred. As a result of our proposal, the SL358 locking type showed the best return torque, leading to its adoption after prototyping and subsequently for mass production. No loosening incidents have occurred since its adoption. [Case Overview] ■ Issues - Components mounted on the rotating body of the product were fastened with hexagon socket flat head bolts M6x25, but "screw loosening" occurred. - Variability in the loosening prevention effect due to missed application or uneven application of adhesive. *For more details, please refer to the related links or feel free to contact us.

• Other services

This document is a summary extracted from the standard JIS B 1021, which can be applied to special-shaped screw parts, focusing on the tolerances for commonly used screw lengths. It also compiles tables of screw pitch, JS tolerances, and IT tolerances included in the standard, allowing you to check the tolerances for screw length with just this one document. Please make use of it when selecting products. 【Contents】 ■ Overview of the document ■ Scope of application of JIS B 1021 ■ Notes ■ Tolerances for screw lengths ■ Tolerances for lengths ■ Afterword *For more details, please refer to the PDF document or feel free to contact us.

• bolt

This document introduces design methods that you may want to consider regarding the safety of fastening components when using recoil. It includes dimensions of bosses and edges, as well as the strength of bolts and shear strength of the base material during assembly design. Please make use of this information when selecting products. [Contents] ■ Design Considerations ■ Assembly Design ■ Conversion Table *For more details, please refer to the PDF document or feel free to contact us.

• others

This document explains the standard profile and dimensions of screws, pitch, tolerances, and permissible limit dimensions. It includes information on "coarse and fine threads," "tolerances for general-purpose metric screws," and "Unified coarse and fine threads." This material is designed to be a helpful reference for selecting products. We encourage you to read it. 【Contents】 1. Standard profile and dimensions of general-purpose metric screws 2. Coarse and fine threads 3. Unified coarse and fine threads 4. Tolerances for general-purpose metric screws (principles and basic data) 5. Permissible limit dimensions for general-purpose metric screws *For more details, please refer to the PDF document or feel free to contact us.

• others

This document explains the unstable relationship between torque and axial force, and proposes the "DTI System" as a solution to this problem. An overview of the "DTI System" and its feature of axial force display technology is introduced. We have prepared a questionnaire sheet to gather the necessary information for determining the feasibility of manufacturing and for estimates. Please make use of it when considering implementation. [Contents] ■ Figure 1. Torque Table ■ Figure 2. Relationship between Torque and Axial Force ■ Figure 3. DTI System ■ Key points indicated in the figures *For more details, please refer to the PDF document or feel free to contact us.

• Torque wrench

The tightening failure test is an important test for using tapping screws, aimed at determining the type of tapping screw, the pilot hole diameter, and the appropriate tightening torque. Even if the types of tapping screws are the same, differences in other conditions (pilot hole diameter, joined materials, counterpart materials, etc.) can lead to variations in test results. In this document, we conduct tightening failure tests under three different conditions using the same tapping screw and compare the differences in the results. 【Contents】 ■ Test overview / Test conditions / Comparison conditions ■ Key points to observe in the test ■ Test result 1: Differences in pilot hole diameter ■ Test result 2: Differences in engagement length (length of the screw section in contact with the counterpart material) ■ Test result 3: Differences in the material of the joined component (material of the contact surface of the tapping screw) *For more details, please refer to the PDF document or feel free to contact us.

• others

This document introduces the reduction of the risk of fracture for super bolts. It explains the causes of fracture in large-diameter bolts and provides a detailed explanation of the process of generating axial force in super bolts and the absence of torsional stress. Our company has a dedicated support department. Please make use of it for product selection. [Contents] ■ What is a super bolt ■ Main causes of fracture in large-diameter bolts ■ Reducing fracture risk with super bolts ■ Summary *For more details, please refer to the PDF document or feel free to contact us.

• bolt

In the "Screw Technology Diagnosis Service," engineers support the resolution of concerns and challenges related to screw fastening, such as "lightweight design and torque settings during new design," "improving efficiency in screw tightening during manufacturing," and "investigating causes when quality issues arise," from various perspectives. We conduct on-site and physical inspections by experts and provide data that includes testing. Additionally, we offer reporting with explanations summarizing the causes and countermeasures. This service is recommended for those who want to achieve a total balance of QCD in their products or those who wish to investigate issues that have arisen. Please feel free to consult with us.

• Other contract services

"TRF" is a tamper-proof screw used in terminal products that require safety measures such as the disassembly of public facilities and toys, accident prevention, theft prevention for equipment, and compliance with the Radio Law. By replacing existing screws, security is enhanced. Additionally, due to its aesthetic appeal, it is also appreciated for its design, and there are many situations where it is used as an accent for products. [Features] - Security is increased simply by replacing existing screws - Cannot be disassembled without a special tool - A variety of tamper-proof screws are in stock *For more details, please refer to the related links or feel free to contact us.

• nut

The "Expander" can solve the wear-related play in the structure of mechanical moving parts, which has been considered unavoidable, in a short time and for the long term. By expanding the gap at the pin hole, which is the root cause of the problem, when the pin is fixed, the issue is resolved. Additionally, by reducing the distance between the fixed parts, the bending stress on the pin is halved and distributed, ensuring functionality for 10 years or 10,000 operating hours. 【Features】 ■ Long-term resolution of play in moving parts due to pin hole wear can be achieved through part replacement alone. ■ Compatible with a wide range of pin specifications, including size, single or double fastening, and the presence or method of lubrication. ■ Significantly reduces maintenance costs, maintenance time, and opportunity losses due to decreased operational accuracy. *For more details, please refer to the related links or feel free to contact us.

• bolt

The "Keysert" is an insert nut used for repairing and reinforcing crushed threaded holes. The insertion process does not require specialized tools and can utilize commercially available drills and taps. Additionally, after insertion is complete, the key that protrudes from the top can be driven into the groove with a specialized tool, creating a wedging effect. 【Features】 ■ Driving in the key prevents loosening of the insert and increases pull-out strength. ■ Since it is not a wire type, there is no concern about pitch skipping. ■ The drilling and tapping processes can use general tools instead of specialized ones. *For more details, please refer to the related links or feel free to contact us.

• nut

"Ensat" is an insert nut with a self-tapping feature. It eliminates the need for the tapping process required before inserting the wire insert. Furthermore, compared to press-fit types, the external thread section tightly grips the base material without gaps, making it less likely to come loose. 【Features】 ■ Can skip the pre-tapping process ■ Provides high pull-out strength due to its one-piece molding ■ Reduces distortion of the base material caused by insert insertion *For more details, please refer to the related links or feel free to contact us.

• nut

"Karatan (Color Tangless Insert)" is a product that makes it easier to confirm after insertion work by adding color to the tangless insert. It is possible to eliminate insertion omissions with just a visual check. Additionally, there are no concerns about coating peeling or outgassing during insertion, making it suitable for semiconductor-related components. [Features] ■ Prevents insertion omissions with color coding ■ Ultra-thin film maintains workability ■ No peeling or outgassing ■ No need for cumbersome large taps ■ Material: A2 (SUS304) *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Recoil Tangless Insert" is a product that allows for insertion and removal without a tang, using a specialized tool. When removing, it does not damage the male threads or the tangless insert. Since the wire insert does not have a tang, the insertion time can be reduced to one-third of the conventional time. 【Features】 ■ SUS304: Standard product ■ SUS316: Corrosion resistance and chemical resistance ■ Inconel X-750: Corrosion resistance, heat resistance, and chemical resistance ■ Phosphor bronze: Non-magnetic ■ Nitronic 60: Non-magnetic and galling resistant *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Recoil Kit" is a thread repair kit for recoil widely used around the world for the maintenance and repair of industrial machinery, automobiles, and motorcycles. In the case of the trade series, remove the damaged screw section with a drill, then tap to the required depth. After that, attach the recoil tang downwards to the insertion tool. Insert the recoil while lightly pressing vertically, and after insertion, break off the tang with a dedicated tool. The contents of the set vary by size, so please feel free to contact us when making an inquiry. 【Instructions for Use】 ■1. Drill ■2. Tap ■3. Insert insertion ■4. Break off the tang *For more details, please refer to the related links or feel free to contact us.

• Tool Sets

"MoS2 Shot Peening" is a surface modification technology that involves the high-speed injection and collision of molybdenum disulfide powder, a solid lubricant, onto the surface of metal components using compressed gas. Through shot peening, molybdenum disulfide is penetrated into the threaded parts of various bolts and nuts to prevent seizure. Additionally, since it can form a solid lubricant layer on the very surface of the treated object without the need for any binder, it is characterized by a significant friction reduction effect. [Features] - Prevents seizure of threaded parts and wear of components - Strongly adheres without peeling, ensuring lasting effectiveness - Compatible with a variety of materials and fine, complex shapes, as well as small production runs *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

We would like to introduce the "duplex stainless steel products" handled by Ikeda Metal Industry Co., Ltd. These are stainless steels composed of austenitic and ferritic phases (duplex mixed materials), combining the advantages of both types of stainless steel, boasting excellent corrosion resistance and approximately double the strength. By refining the metal structure, the tensile strength at room temperature is increased to about twice that of conventional materials, allowing for thinner and lighter designs. We can accommodate not only standard dimension-compliant screws but also custom-made products. 【Features】 ■ High corrosion resistance and crevice corrosion resistance in chloride environments, excellent in preventing stress corrosion cracking ■ Approximately double the strength and yield compared to SUS304, enabling thinner and lighter designs ■ Capable of accommodating not only standard dimension-compliant screws but also custom-made products *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

"Kajiritol®" is a spray that allows you to remove rusted stainless steel screws simply by spraying it. By using Kajiritol, you can eliminate the labor-intensive and time-consuming tasks of cutting or extracting screws that are stuck. The special components in the spray penetrate the gaps of the rusted screw, providing a lubricating effect. 【Features】 ■ Just spray and turn ■ No need for cutting or extracting stuck screws ■ Large capacity of 400ml *For more details, please refer to the related links or feel free to contact us.

• Lubricants

The "310 Slim" is an ultra-low head screw with a head height of 0.5mm for M2 and 1mm for M5. It achieves a flat fastening surface without any protrusion of the screw head, eliminating the need for counterboring. It is recommended for applications where you want to eliminate screw head protrusion or reduce weight. The incomplete threaded section below the neck is designed to be small, allowing for secure fastening without the screw head lifting, even with thin sheet fastening. 【Features】 ■ Ultra-low head ■ No counterboring required to eliminate head protrusion ■ Can be tightened with the same torque as conventional small screws ■ The recess shape and depth are designed to enable fastening similar to cross-recess screws ■ Two types of recesses are adopted for good torque transmission: "6-lobe" and "Quo" *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

"Nonsert(R)" is a tapping screw specifically designed for thermoplastic resin that does not require a metal insert. The metal insert, which was necessary for reinforcing the internal thread, is no longer needed, reducing the number of processes. It can also avoid boss breakage in the mating material. The shaft is triangular in shape and has a sharp screw thread angle of 30° (normally 60°), allowing it to be screwed into the resin material with low torque. As a result, it is less likely to impose a load on the mating resin material, enabling repeated use in the same hole. 【Features】 ■ No metal insert required, allowing for repeated use ■ Shape that prevents boss breakage in the base material ■ High pull-out strength ■ Specifically for thermoplastic resin ■ Available in stainless steel and iron (various coatings) *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Ultra Low Head CAP" is a hex socket bolt with an even lower head than a low head bolt. It is suitable for areas where you want to minimize the protrusion of the screw head or reduce weight. Since countersinking is not required, it allows for a reduction in work processes and time. We can also accommodate various additional processing requests as needed. 【Features】 ■ Head height is even lower compared to low head CAP ■ No countersinking required, minimizing head protrusion ■ Additional processing such as various surface treatments and anti-loosening treatments is also available *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

"DISGO" is a surface treatment technology for high-strength bolts that utilizes a paint-based coating process. Since it uses blast treatment instead of acid pickling, there is no risk of hydrogen embrittlement. It is chrome-free, containing neither hexavalent nor trivalent chromium, and complies with various environmental regulations such as RoHS. It has high corrosion resistance, with a rust prevention performance of 2000 hours in salt spray testing (SST). 【Features】 ■ Suitable for high-strength bolts (high corrosion-resistant surface treatment that does not require baking) ■ Environmentally friendly, free of hexavalent and trivalent chromium ■ Reduces galvanic corrosion between dissimilar metals ■ Customization options available, including changes in film thickness, added heat resistance, and reduced friction *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "YFS(R) Hexagon Socket Bolt" is a product from one of the largest Taiwanese brands specializing in the manufacturing of high-strength bolts. Thanks to advanced quality control, it is possible to guarantee a strength classification of 12.9 even for large diameter sizes of M22 and above. The stock sizes range widely from a minimum of M3 to a maximum of M36, allowing for a single company to fulfill the procurement of main sizes. 【Features】 ■ Price competitiveness due to one-stop production with one of the largest production volumes in the world ■ Guarantees high strength of 12.9 even for diameters of M22 and above ■ A lineup of over 1200 sizes from M3 to M36 *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

"Recoil(R)" is a metal wire insert that can repair stripped threads while maintaining the original thread size. By inserting it into lightweight materials such as aluminum, magnesium, and plastic, sufficient assembly strength can be ensured. The Recoil before insertion is designed to be larger than the base material's threaded hole. After insertion, it is lightly compressed, and a spring action works outward, preventing it from pulling out as it presses against the base material. [Features] - Can repair stripped threads while maintaining the original thread size - Reinforces soft materials like aluminum, enhancing lightweight and repeatability - Available in a wide range of materials and sizes, suitable for special usage environments - Provides reinforcement stronger than the original thread *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

"SOLVEST" is a solid lubricant with very high durability. SOLVEST reduces friction and wear, extending the lifespan of sliding components and preventing seizure in screws, allowing for stable tightening. Due to its effectiveness, it is widely used in automobiles and machinery. The types are broadly divided into four categories: "Dry Coat," "Grease," "Paste," and "Oil." [Features] ■ Excellent load-bearing performance applicable across a wide range from low to high loads ■ Improved wear and stable friction ■ A product lineup covering a wide temperature range from -200°C to +500°C *For more details, please refer to the related links or feel free to contact us.

• Lubricants

"Voltite" is a tool that completes fastening by creating a pre-tightened state through controlled hydraulic tensioning of the bolt shaft, seating the nut, and then releasing the hydraulic pressure. By equalizing the compression applied to the joined components through hydraulic means, it is possible to fasten the flange joint surfaces with uniform force, preventing leaks. As a hydraulic tool using a tensioning method, the only remaining component after work is a standard nut, making it very effective for safely and reliably tightening multiple large-diameter bolts while keeping the cost of the components low. 【Features】 ■ Hydraulic tensioner that allows simultaneous and uniform tightening of multiple large-diameter bolts ■ Enables fastening without leaks by applying uniform pressure to the flange surfaces simultaneously ■ Uses standard fastening components, improving repeated fastening tasks such as piping connections on a low budget ■ Compact, lightweight, highly durable, with excellent workability and safety *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Super Bolt" is a product that allows you to tighten bolts with a diameter of over 1 meter using only hand tools. Even large-diameter bolts can be securely tightened with a torque wrench. You are freed from cumbersome tools and dangerous, inefficient work, and the working time can be significantly reduced with fewer people. 【Features】 ■ Anyone can accurately tighten large-diameter bolts using only a torque wrench. ■ Eliminates dangerous work often associated with large-diameter bolts. ■ No worries about seizing or galling during tightening, and no need for reaction force supports. *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Nord-Lock Washer® X Series" is a product that can simultaneously solve two important issues in bolt fastening: "rotation loosening due to vibration" and "non-rotation loosening due to settling or relaxation of materials such as metal." Rotation loosening is prevented by a wedge locking mechanism, while the "spring effect," a feature of the X Series, addresses non-rotation loosening. When the bolt is tightened, the washer, shaped like a disc spring, flattens and grips the joined components. 【Features】 ■ Prevents both rotation loosening and non-rotation loosening simultaneously ■ Can be used with lubricants as it does not rely on friction ■ Provides a loosening prevention effect that is safe, easy, and reliable for anyone *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Nortlock Washer Black" is a product characterized by its wedge locking mechanism. It consists of a pair of washers. It physically prevents the loosening of bolt connections by utilizing axial force rather than friction. Anyone can safely, easily, and reliably tighten bolts and nuts, and it is particularly effective against "rotational loosening" caused by vibrations. Additionally, it can be used in conjunction with lubricants during tightening. 【Features】 ■ Loosening prevention using axial force ■ Can be used with lubricants as it does not rely on friction ■ Provides loosening prevention effects safely, easily, and reliably for anyone ■ Effectively stops bolt loosening caused by vibrations ■ Black color allows for easy identification of whether it is installed or not *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "Nortlock Washer(R)" is a product that physically prevents the loosening of bolt connections by utilizing "axial force" rather than friction, featuring a washer shape consisting of two pieces. It is characterized by a wedge locking mechanism, allowing anyone to safely, easily, and reliably tighten bolts and nuts, particularly effective against "rotational loosening" caused by vibrations. It can also be used in conjunction with lubricants during tightening. 【Features】 ■ Loosening prevention utilizing axial force ■ Can be used with lubricants as it does not rely on friction ■ Provides loosening prevention effects safely, easily, and reliably for anyone *For more details, please refer to the related links or feel free to contact us.

• Other machine elements

The "DTI system" is a bolt tension management system that embeds a mechanism within the bolt to detect slight elongation caused by axial force, displaying the degree of elongation (i.e., axial force) through a color change from red to black. Insufficient axial force due to improper tightening during bolt fastening poses a high risk of breakage and other issues. By using this system, it is possible to confirm that the planned initial axial force has been achieved at all fastening points. Since the appropriate axial force varies depending on the application, it will be determined in consultation and produced to order according to the intended use. 【Features】 ■ Improved safety of bolt connections by accurately grasping axial force (i.e., tightening force) ■ Constant display of axial force allows for early problem detection and trouble avoidance ■ Point-specific maintenance enhances equipment operational efficiency *For more details, please download the PDF or feel free to contact us.

• bolt

"Sea Horse Lock (R)" is a pre-coated type product with a locking agent already applied to the threaded part, allowing for immediate tightening work. It eliminates the hassle, inconsistency, and forgetfulness of the application process, and strongly prevents loosening due to impact and vibration. The locking agents can be broadly divided into two types: "resistance" and "adhesion," with multiple varieties available for each type, allowing for selection based on application needs. 【Features】 ■ Eliminates the hassle, inconsistency, and forgetfulness of adhesive application ■ Customizable types, application ranges, viscosities, and colors of locking agents ■ Supports prototyping, small lots, and short delivery times *For more details, please refer to the related links or feel free to contact us.

• bolt

The "Enzart" is a highly functional insert with a self-tapping feature. Not only does it eliminate the need for a pre-tap, but it also has a self-locking function for metal materials, resins, and wood, making it resistant to loosening due to screw removal and reattachment. It provides excellent wear resistance and high pull-out strength for any type of material. 【Features】 ■ Excellent workability with self-tapping function ■ No pre-tap required ■ Equipped with self-locking function for metal materials, resins, and wood ■ High pull-out strength *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• nut

"Lock Recoil" is a lock-type insert that prevents loosening of bolts caused by vibrations and temperature changes. The middle 1-2 turns are polygonal, and by tightening the bolt threads in this area, it exhibits a loosening prevention effect. There are standard stock items available by material, and it is also possible to manufacture materials that are not in stock. 【Features】 ■ Prevents loosening of bolts due to severe vibrations and temperature changes ■ Reduces volume and weight, enabling cost reduction ■ Excellent seismic resistance ■ Exhibits anti-backout effect ■ Ideal for aluminum substrates *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

• Other machine elements

Typically, in bolt fastening, it is said that "the fastening is complete when the appropriate axial force is generated in the bolt." However, how can we confirm the generation of this axial force? Of course, there are instruments available to measure axial force, but they tend to be quite expensive. Most places probably manage it using tightening torque. This led to the development of the "DTI System (Direct Tension Indicating Fastener System)," which allows the bolt itself to indicate whether axial force is generated. 【Features】 ■ No need for temporary shutdown or suspension of inspection equipment! ■ No need to even touch the bolt! ■ Safety: Reliable due to axial force management! ■ Accuracy: Allows for precise visual inspection! ■ Reliability: The display function has a lifespan of over 20 years! ■ Compatible sizes: M10 to M64 (from L size 30mm) ■ Operating temperature range: -20℃ to 75℃ *For more details, please download the catalog or contact us directly.

• Other inspection equipment and devices

Keyserts are a robust, one-piece solution, unlike wire inserts such as Recoil. They are used for repairing damaged threads and reinforcing female threads, similar to Recoil. The locking key of the Keysert mechanically locks the insert to prevent rotation caused by vibration or twisting. 【Features】 ○ A stronger insert system that replaces wire for thread repair For more details, please contact us or download the catalog.

• Other machine elements

The Tangless Insert has replaced the tang found on conventional inserts with a driving notch. This driving notch is engaged by the claws of the insertion tool during insertion. Once the insertion is complete, the dedicated tool automatically rotates in reverse, allowing the claws to detach from the insert and be stored within the grooves of the dedicated tool. Compared to inserts with tangs, there is no need to deal with breaking off tangs or searching for broken tangs, significantly reducing work time and leading to cost savings. 【Features】 ○ Work time reduced to one-third ○ Cost reduction achieved ○ A difference in work time of 12 seconds For more details, please contact us or download the catalog.

• Other machine elements

Recoil is a wire insert with tangs that can restore stripped internal threads to the same size as before the damage at a low cost, and it can reproduce a holding power stronger than the original threads. 【Features】 ○ Restore stripped internal threads to a strong holding internal thread at a low cost. ○ Can restore internal threads to the same size as before the damage. For more details, please contact us or download the catalog.

• Other machine elements

Nord-Lock is a locking product that utilizes axial force, designed to securely and easily fasten bolts and nuts in critical areas where loosening is problematic. It ensures maximum safety during tightening and withstands loosening caused by vibrations and impacts. It allows for easy installation and removal, and the tightening force is not affected by lubricants. Regardless of the high or low tightening force, it can reliably manage the tightening and axial force. It can be used under the same temperature conditions as standard bolts and nuts and is reusable. 【Features】 ○ Self-locking using tension ○ Since it manages axial force rather than friction, it is resistant to loosening due to vibrations. For more details, please contact us or download the catalog.

• bolt

The 310 Slim is an ultra-low head type screw that is ideal for space-saving measures and enhancing design aesthetics. Its thickness is only 0.5mm for M2 and just 0.9mm for M4, making it perfect as a cover screw. 【Features】 - Ultra-thin head height - Ideal for areas without clearance in machinery and equipment - No protrusion of the head after installation on the product For more details, please contact us or download the catalog.

• bolt