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  1. Home
  2. Other construction industries
  3. 日本プララド
  4. Released the bolt anti-rotation washer "Tsure Zero Washer".
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  • Nov 11, 2024
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Nov 11, 2024

Released the bolt anti-rotation washer "Tsure Zero Washer".

日本プララド 日本プララド
Nippon Prarado Co., Ltd. has released the "Tsure Zero Washer," a washer designed to prevent the rotation of bolts with diameters ranging from M12 to M72. ■ Features of the Anti-Rotation Washer "Tsure Zero Washer" 1. A washer that prevents bolt rotation Unlike washers that utilize surface irregularities from knurled processing to create friction resistance, the anti-rotation Tsure Zero Washer has a special structure that changes the equivalent friction diameter. It has already been applied for international patent. The conical shape on the back and the hexagonal design increase the effective friction diameter against the seating surface, resulting in the reaction torque from the bolt head being more than twice as large as the tightening torque of the nut. This prevents the washer from rotating and stops the bolt head from rotating together. As the tightening torque of the nut increases, the reaction torque from the bolt head also increases, ensuring that the bolt does not rotate until the tightening is complete. 2. Significant reduction in bolt tightening and loosening time, manageable by one person By simply replacing standard flat washers with the Tsure Zero Washer, there is no need for cumbersome anti-rotation tools or backup wrenches, leading to a substantial reduction in the time required for bolt tightening operations.
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zero-washer.pdf[1978349]

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Bolt Anti-Rotation Washer "Tsure Zero Washer" Japan Pralado
Absolutely no bolt rotation! The anti-rotation Tsure Zero Washer has a special structure that changes the equivalent friction diameter, ensuring that the bolt does not rotate. International patent application filed. For M12 to M72.
Principle of Bolt Anti-Rotation and Tsure Zero Washer
Dimension Table for Bolt Anti-Rotation Tsure Zero Washer for M12 to M72

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Anti-rotation washer that absolutely prevents the bolt from rotating together - zero friction washer.

Washer for completely preventing the simultaneous rotation of bolts, suitable for M12 to M72.

■ Completely prevents bolt rotation with the "Anti-Rotation Zero Friction Washer" Bolt sizes: Compatible with M12 to M72. International patent applied for. ■ Features of the Plarad Anti-Rotation Zero Friction Washer Prevents hex bolt rotation. ■ Unlike washers that utilize surface irregularities from knurled processing for friction resistance, the Zero Rotation Washer has a special structure that changes the equivalent friction diameter, ensuring that the bolt does not rotate. ■ By simply replacing standard flat washers, there is no need for cumbersome bolt anti-rotation tools or backup wrench tools, significantly reducing the time required for bolt tightening operations. Additionally, the bolt tightening task, which previously required two workers to hold the tightening tool and the anti-rotation tool, can now be done by one person, improving labor efficiency. - Strength classification: 8.8 - Material: S45C - Surface treatment: Trivalent chromate finish <For inquiries about the bolt anti-rotation Zero Friction Washer> Please contact us for quotes and information requests. Plarad Co., Ltd. TEL: 078-967-3556

  • Joining and fastening materials

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bol-2025.png

The strongest lock nut "Bolrock Nut"

A nut that does not loosen even after 1 million vibration tests (3D vertical and horizontal)! Compatible bolt sizes: M14 to M100.

■ Structure and Non-Loosening Principle of the Strongest Lock Nut "Bolrock Nut" 1. When the nut is subjected to vibration and attempts to loosen counterclockwise, the fine internal balls utilize a clutch mechanism to exhibit a wedge effect, preventing the nut from turning and loosening. 2. The slope angle of the internal balls is designed to be larger than the "screw lead angle," which corresponds to one full turn of the screw. 3. When the nut is tightened, the internal balls automatically move to the deepest part of the groove, aligning the bottom of the nut with the top of the balls, eliminating any gap between them and the floor, thus not affecting the tightening axial force. ■ Vibration Test Condition Data - Bolt Diameter: M16 - Bolt and Nut Material: SCM435 - Frequency: 100Hz - Number of Vibrations: 1,000,000 times - Simultaneous 3D vibration in vertical and horizontal directions While competitor lock nuts loosen after 1,100 to 2,300 vibrations, Plarad's Bolrock Nut has withstood 1,000,000 vibrations, proving its overwhelming vibration resistance. <About the Strongest Lock Nut: Bolrock Nut> For inquiries regarding quotes, requests for materials, etc., please contact us. (Company) Nippon Plarad TEL: 078-967-3556

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[Please introduce this to the management and general affairs department] Update on the introduction case of expense reimbursement and attendance management system! We want to eliminate paper-based reimbursement and application processes. The checking work that used to take three days can now be completed in one day.

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An article has been published regarding the case study of the introduction of the expense reimbursement system "Rakuraku Seisan" and the attendance management system "KING OF TIME" at Racam Co., Ltd. ~ In the case of Racam ~ Before the introduction of "Rakuraku Seisan," applications were paper-based. One person was responsible for checking the contents for about 100 individuals using a calculator. Since actually using the system, various tasks related to determining who to pay and how much have been reduced, and it has become possible to import the crucial journal entries. Most importantly, the elimination of the need to research transportation costs one by one has been a significant improvement. The successful implementation of the attendance management system was made possible by the generous support provided by iBP. [Case Overview (Partial)] ■ Challenges Before Implementation - Wanted to eliminate paper-based reimbursement and application processes ■ Key Points of Implementation - High recognition of Rakuraku Seisan - With iBP, both expense reimbursement and attendance management can be handled together *For more details, please refer to the related links or feel free to contact us.

Jul 24, 2026

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Case Study 003: Verbalizing the "somewhat inconvenient" issues faced by HR and General Affairs. A case of organizing challenges and proposals. Client in the home care industry with approximately 700 employees.

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"Somewhat inconvenient" can quickly transform into "cost" and "risk" due to an increase in the number of employees or an expansion of business scope. What we are introducing this time is the process of a home care industry company with around 700 employees verbalizing their frustrations regarding payroll operations and considering the optimal system configuration. When we verbalize "somewhat inconvenient"... 1) The support quality of the payroll system being used is poor, causing significant stress. 2) The number of employees has been on the rise in recent years, raising concerns about running costs due to the pay-per-use system. 3) Macros are being used for data integration with a separate system. 4) We want to make backend processes like payroll payment reports easier. Information from iBP What is important here is to decide how to handle the multiple issues that have arisen, which is the "prioritization of tasks." You can read more without needing to input personal information. Please visit the iBusiness Partners column page! https://ibp-column.sfsite.me/36302

Jul 23, 2026

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When the sensor detects a car, it notifies pedestrians of the car's departure with the light of a rotating beacon!

Perfect for entrances and exits of parking lots and stores! Notify pedestrians of vehicle departures with the light from the rotating lamp! Here is a proposal for a departure warning sensor!

  • NEW
  • CATALOG

[To the owners of parking lots and parking lot construction companies] "I am worried about the possibility of colliding with pedestrians when exiting the parking lot..." Among vehicle entrances to parking lots, stores, residences, and factories, those particularly facing sidewalks or roadways are expected to pose risks of dangerous incidents such as pedestrian collisions and vehicle-to-vehicle accidents. To alleviate such concerns, Hotron proposes a [Vehicle Exit Warning Sensor] that detects vehicle departures at various sites and alerts the surrounding area with LED lights and buzzers. The system consists of a simple configuration of "Sensor" + "Controller" + "Switching Power Supply (24V)" + "LED Rotating Light." *When using the exit warning system, we kindly ask that you arrange for the switching power supply (24V), LED rotating light, control panel, circuit breaker, etc. Since it can be retrofitted, it can also be used for existing parking lot entrances. [Contents Included] ○ Exit Warning System Configuration ○ Comparison Table of Exit Warning Sensors ○ Four Modes ○ Wide Range of Applications ○ Customer Feedback ○ Appearance Diagram / Specifications ◎ For more details, please contact us or download the catalog.

Jul 23, 2026

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[Free Catalog Distribution] Measures for "Near Misses" in Nursing and Care Settings. Prevent tripping and disconnection with codes! Wireless Series Bed Exit Sensors Linked to Nurse Call Systems.

  • NEW
  • CATALOG

In facilities operating nurse call systems, we have made bed exit sensors wireless, allowing them to notify in conjunction with the nurse call system. By simply connecting the mat sensor "Foldable Thin Matt-kun," the body movement call "Ugo-kun," and the wheelchair body movement call "Ayumi-chan" to the transmitter HB-RS, you can make the bed exit sensor wireless. The infrared sensor "Just Place Pole-kun" has the transmitter HB-RS built-in. This helps prevent accidents caused by falls, slips, or wandering, contributing to the efficiency of medical operations. 【Features】 ○ Wireless conversion by simply connecting existing sensors to the transmitter HB-WSK. ○ Bed exit sensors notify wirelessly in conjunction with the nurse call system. ○ Up to 5 transmitters can be registered with one receiver. ○ The communication distance between the transmitter and receiver is approximately 10 meters. ◎ For more details, please contact us or download the catalog.

Jul 23, 2026

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We have released the materials for the cloud management tool "Loglass"!

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We have released an introduction document for our cloud management system "Loglass." This document clearly presents the features and usage images of "Loglass," which streamlines management tasks such as budget formulation, performance management, forecast updates, and management accounting. Loglass centralizes data scattered across various systems and spreadsheets, reducing the effort required for collection, aggregation, and analysis, thereby supporting quicker and more accurate management decisions. Additionally, it helps address challenges such as the personalization of management tasks and increased workload through automation of data aggregation, history management, and real-time analysis functions. The document also includes actual implementation examples and the effects of implementation, showcasing results such as reduced workload, enhanced analysis capabilities, and improved decision-making speed. Companies considering promoting DX in management or reviewing operations centered around Excel and spreadsheets are encouraged to take a look.

Jul 22, 2026

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