望月螺旋 List of Products and Services

Here is the process of how screws are made at Mochizuki Spiral Co., Ltd. First, the sales department issues a manufacturing instruction based on the orders received from customers and requests production from the manufacturing department. After that, material selection is done, followed by the production of the head (forging), and then the production of the screw body takes place. To enhance the screw-in capability of screws like tapping screws, cuts are made at the tip of the screw as per user instructions, followed by a cleaning process. The cleaned screws undergo a final inspection to ensure they are manufactured according to JIS standards, followed by sorting and packaging before shipment. 【Process of Screw Production】 1. Screw production request 2. Material selection 3. Head production (forging) 4. Screw body production (rolling) 5. Tip cutting production (splitting) 6. Cleaning 7. Final inspection 8. Sorting 9. Packaging 10. Shipment *For more details, please refer to the PDF document or feel free to contact us.

• Processing Contract

The "Long Screw" is a roofing tile screw that prevents head snapping and screw bending. In recent years, the diversification of residential design has led to an increased demand for long screws. However, as the overall length increases, strong loads are applied during fastening, raising concerns about head snapping and screw bending, which can reduce fastening capability. Our product prevents head snapping and screw bending by applying a knurling process to the body of the screw, which allows for expected cold working hardening (the material heats up and hardens due to instantaneous pressure applied to the solid). 【Features】 - The knurling process on the body prevents head snapping and screw bending. - The split end processing at the tip improves grip and enhances workability. - The undercut below the neck ensures tight contact with the sealing packing, preventing water leakage. - Split end processing can be applied to long screws up to 115 millimeters. *For more details, please refer to the PDF document or feel free to contact us.

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In our screw division, we manufacture tapping screws, small screws, and wood screws using materials such as stainless steel, titanium, and non-ferrous metals through cold forging. We handle anti-tamper screws, screws with integrated washers for thin plates, ultra-low head screws, and more. We also accommodate orders for non-standard products with documentation exchanges, inventory storage, and shipments of only the required quantities. We provide assembly (surface treatment) such as baked head coating, temper colors, and anodizing. Additionally, we can arrange everything from processing to bagging in a "one-stop" manner. For stainless screws, surface treatments, and assembly, please feel free to consult us. 【Products Handled (Screw Division)】 ■ Small screws with cross holes ■ Tapping screws ■ Wood screws ■ Double-threaded fine wood screws ■ BP screws (with guides) ■ Screws with integrated washers, etc. *For more details, please refer to the PDF document or feel free to contact us.

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The "frame adjustment screw" is an adjustment screw that can dramatically reduce the time required to adjust distortions that occur when installing closet frames and door frames to the structure. By making the ring part a cat's paw shape, the screw does not come out during adjustment, allowing only the frame to move. Additionally, by making the tip two-pronged, it suppresses the initial driving force, preventing damage to the object being fastened, and by making the screw threads sharp-angled (approximately 30 degrees), it allows for tightening with low torque (tapping screws are 60 degrees). 【Adjustment Method】 ■ Insert the adjustment screw into the frame up to the base and screw it in. ■ When the adjustment screw is turned counterclockwise, only the frame moves. ■ Confirm the verticality of the frame and screw in the fixing screw to complete. *For more details, please refer to the PDF document or feel free to contact us.

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The "Yachiban Screw" is a screw that can prevent 100% of rain leaks. When installing solar panels on residential roofs, screws are used, but there is a concern that rainwater may enter through the gaps in the screws, leading to leaks. This product incorporates a waterproof packing to prevent the intrusion of rainwater. By wrapping butyl tape around the screw, it provides a double waterproofing effect. Furthermore, as an additional benefit, it can significantly improve workability. If you have any concerns, please feel free to contact us. 【Features】 ■ Rain leak prevention ■ Improved workability *For more details, please refer to the PDF document or feel free to contact us.

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The "trapezoidal screw" is a product that can dramatically improve the pull-out strength when fixing products to hard materials such as concrete. By making the screw thread trapezoidal, the apex of the thread becomes flat, preventing it from cutting through the resin plug and allowing for a larger expansion. Furthermore, as the contact area between the screw and the resin plug increases, the pull-out strength improves by approximately 1.5 times compared to standard screws (tapping screws). 【Features】 ■ It does not cut through the resin plug, allowing for larger expansion. ■ The increased contact area between the screw and the resin plug allows for even stronger retention. *For more details, please refer to the PDF document or feel free to contact us.

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The "PC" is a resin screw recommended for fragile soft materials. This product features a screw thread angle of 40 degrees and a sharp angle (Type B 60 degrees), with a thread height that is 1.8 times higher than that of tapping screws, making it less likely to crack the resin. Additionally, the return torque is approximately 1.5 times higher compared to standard Type B tapping screws. Furthermore, it can be tightened with about 3/4 of the force. If you are having trouble with resin screws, please feel free to contact us. 【Features】 ■ Shape that is less likely to crack resin ■ Resistant to loosening ■ Reduced tightening torque *For more details, please refer to the PDF document or feel free to contact us.

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The "VBA" is a screw designed with a screw shape that works well with hard hardwoods, making it suitable for use with dense wood. Recently, the use of lattice and other hardwoods has been increasing, but hardwoods are tough, and standard wood screws and tapping screws are not recommended due to poor workability. This product has a shape that allows it to easily penetrate hard wood, and it can be tightened with about two-thirds the force compared to wood screws. Furthermore, it offers a 30% improvement in pull-out strength compared to wood screws. If you are having trouble driving screws into hard wood, please feel free to contact us. 【Features】 ■ Shape that easily penetrates hard wood ■ Reduced tightening torque ■ Improved pull-out strength *For more details, please refer to the PDF document or feel free to contact us.

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Wangetsu Spiral Co., Ltd. is engaged in manufacturing through the plastic processing technology of titanium and stainless steel. With the theme of eternal rationalization, we provide reasonable prices through thorough automation and labor-saving measures. We aim for further rationalization by combining robot headers capable of 24-hour production with rolling machines. We respond quickly and sensitively to changes in demand, including new needs and new products, as well as the recent trends towards high-tech and high-end products, which require a variety of small quantities and high precision. 【Sales Items】 ■ Screw Division: Tapping screws made of stainless steel, titanium, non-ferrous metals, high alloys, iron, etc. ■ Processing Division: Surface treatment of metal products, bagging, assembly *For more details, please refer to the PDF document or feel free to contact us.

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The "Parts Former" is a horizontal multi-stage forging machine. With the introduction of the multi-stage parts former machine, our company has achieved excellent cost performance, enabling the mass production of high-precision products in a short time. We will continue to provide the technical expertise we have built up to meet our customers' needs. 【Features】 ■ Productivity (Cost performance) ■ Environmental consideration (No chips produced) ■ Increased strength *For more details, please refer to the PDF document or feel free to contact us.

• Contract manufacturing

Due to its excellent properties such as "lightweight," "strength," and "corrosion resistance," titanium, which was previously only used in limited fields such as aircraft, chemical petroleum plants, and nuclear power, is now expanding its applications. As a specialized manufacturer of titanium processing, our company meets a wide range of customer needs. You can trust us with any complex shapes. 【Processing Shapes】 ■ Processing from bar materials with diameters ranging from Φ3 to Φ45 (processing from round bars) ■ Lengths can be up to 320mm (minimum is 1mm) ■ As a composite lathe, milling, cross drilling, and tapping can be processed within the same operation. *For more details, please refer to the PDF document or feel free to contact us.

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The "Cero Gap" is a washer-integrated screw that can tighten without any gaps, even with thin sheet materials. Due to cost reduction and weight reduction, thin sheet materials are in demand, but conventional washer-integrated screws create gaps and cannot securely tighten thin sheet materials. This product has a relief groove under the head (below the washer), allowing for complete seating. 【Features】 ■ Torque strength: M4 ... 3.63Nm * The strength is based on our torsion test results. JIS standard M4 ... 2.70N.m or more. * For more details, please refer to the PDF document or feel free to contact us.

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Stainless steel is widely used in products related to water due to its excellent corrosion resistance. However, because the material is hard and difficult to process, we had to abandon the idea of manufacturing special shapes through forging. As a specialist in stainless steel processing, our company is capable of producing special shapes of stainless steel thanks to our years of technology and experience. Additionally, we excel in cost performance and can produce high-precision products in large quantities in a short time. If you are facing challenges with stainless steel processing, please feel free to contact us. 【Processing Methods】 ■ Capable of manufacturing hollow shapes for riveting ■ Various head shapes can be formed through trimming processing *For more details, please refer to the PDF materials or feel free to contact us.

• Processing Contract

Mochizuki Spiral Co., Ltd. provides long screws in the shapes desired by our customers, utilizing the technology we have cultivated over many years. While many reinforcements for tile roofs, walls, and floors were traditionally done with nails, we have enhanced our facilities to respond to the shift towards screws, including fine diameter long forging machines, fine diameter long rolling machines, and fine diameter long splitting machines. Please feel free to contact us with your requests. 【Suggestions】 ■ Forging (Header) - Maximize the head diameter as much as possible with features like seating and flat heads - Capable of lengths up to 130 mm, etc. ■ Rolling - We can propose various shapes - Capable of lengths up to 125 mm, etc. *For more details, please download the PDF or feel free to contact us.

• Other work tools