八幡ねじ List of Products and Services

"Haika" is a high-performance tapping screw designed specifically for efforts to reduce weight using high-strength steel plates. It features excellent cutting ability with surface hardness that rivals high-strength steel plates. The high torque ratio makes it easy to set the tightening torque. Additionally, it penetrates the counterpart material smoothly, allowing for low screwing torque and effortless fastening. 【Features】 - Surface hardness and cutting ability that rival high-strength steel plates - High surface hardness and low core hardness due to the adoption of new materials - Ensures internal toughness to prevent brittle fracture - The carburized layer on the surface is uniform, ensuring cutting ability - The core has a uniform martensitic structure *For more details, please refer to the PDF materials or feel free to contact us.

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The "Alu-Arma PT" is an aluminum tapping screw specifically designed for use with resin, made from the commonly used A6056 material in the automotive industry. Thanks to the high-strength coating "Alu-Arma," it can be widely used with both soft and hard resins. It can reduce the impact of axial force reduction due to thermal expansion differences compared to iron tapping screws. 【Features】 ■ Lightweight and high strength ■ Safe and reliable materials and manufacturing technology ■ Forms a uniform anodized coating with Alu-Arma treatment ■ Resistant to loosening ■ Can mitigate the effects of axial force reduction due to thermal expansion differences *For more details, please refer to the PDF document or feel free to contact us.

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At Yahata Screw Co., Ltd., we handle "POP Rivets." We offer various products, including "Kareinuts," which provide high installation strength due to their necked-down area, "Large Flange Rivets," which are effective when the pilot hole diameter of the flange side base material is larger, and "CC Rivets" for circuit boards and electronic components. You can choose according to your needs. 【Product Lineup】 ■ Press Fastener Series ■ Blind Rivet Series ■ Blind Nut System *For more details, please refer to the PDF document or feel free to contact us.

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The "Trapezoidal Thread Rolled Screw" is designed with both male and female threads in a 30° trapezoidal shape, allowing it to bear loads on the surface and withstand high loads. The nut is made of bronze, which excels in sliding properties and can endure high loads. Additionally, the screw shaft is formed through rolling, resulting in a uniform shape, and the surface of the screw is smooth and highly wear-resistant. 【Features】 ■ Capable of processing left and right trapezoidal threads ■ Capable of processing multi-thread trapezoidal threads ■ Trapezoidal thread rolling possible on aluminum and hollow materials ■ Both male and female threads are in a 30° trapezoidal shape, allowing for load-bearing on the surface and high load resistance ■ Custom products beyond standard specifications are also accepted *For more details, please refer to the PDF document or feel free to contact us.

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The "Trapezoidal Thread" has a trapezoidal cross-section, making it easy to achieve axial precision during assembly. It is suitable for applications that bear thrust loads or high loads. The nut uses the durable "BC-6" material. We offer two types: straight type and flange type. 【Features】 - The thread cross-section is trapezoidal - Easy to achieve axial precision during assembly - Suitable for applications that bear thrust loads or high loads - The nut uses the durable "BC-6" material - Available in two types: straight type and flange type *For more details, please refer to the PDF document or feel free to contact us.

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The "Gypsum Pin for Hardware" is a special pin designed specifically for securing hardware to gypsum board walls. It features a unique ring pin that folds back the wallpaper when removed, making the removal marks less noticeable. Additionally, it comes with both installation and removal tools, allowing for easy installation. Made from polycarbonate material, it is designed to be inconspicuous even if it protrudes from the hardware. 【Features】 ■ Simply tighten the hardware with the cap using the pin ■ Mount hardware with minimal holes in the wall ■ Removal marks are not noticeable ■ Load capacity of 9kg (per unit) ■ Comes with dedicated tools *For more details, please refer to the PDF document or feel free to contact us.

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The "sliding screw" is a screw that achieves high-speed linear motion and space-saving design. The resin nut is made from PPS as the base material, and a special resin with solid lubricants (such as fluorine resin) is used to improve sliding characteristics. Compared to polypropylene, nylon, and polyacetal, it is made from a material that excels in sliding performance, heat resistance, and water absorption. It operates with lower noise compared to ball screws and with lower torque compared to trapezoidal screws. 【Features】 ■ High efficiency achieved through excellent sliding properties ■ The resin nut is based on PPS ■ A special resin with solid lubricants (such as fluorine resin) is used to enhance sliding characteristics ■ Lower noise compared to ball screws ■ Slides with lower torque compared to trapezoidal screws *For more details, please refer to the PDF document or feel free to contact us.

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The "Concrete Screw Anchor Ultra Cut FBS" allows for easy installation with an impact wrench, and you can visually confirm that the tightening is complete. It can be loosened for position adjustment or completely removed. Since it is a screw type, it places less burden on the base material. Additionally, we offer a "Dust Collection Drill Bit" that makes concrete anchor installation easy, allowing for simultaneous drilling and dust collection, which shortens work time. 【Features】 ■ Easier and stronger than core rod driving type ■ Easy installation ■ Less likely to cause concrete cracking ■ Removable *For more details, please refer to the PDF document or feel free to contact us.

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"Unifast" is a tapping screw for thin plates that can be fastened to a wide range of plate thicknesses from 0.2mm to 0.8mm. It allows for safe and strong fastening due to its low screwing torque and high breaking torque. It can be used in various industries aiming to improve productivity, achieving parts standardization and stable fastening. 【Features】 ■ Speedy fastening: Fastening time is about half that of JIS products ■ Parts standardization: Compatible with a wide range of plate thicknesses from 0.2t to 0.8t ■ Stable fastening ■ No need for burring processing ■ Reduction in the number of parts through parts standardization ■ The leading part has two of the three threads with a lower thread height, reducing screwing torque ■ All three thread heights are aligned at the neck, allowing for strong fastening *For more details, please refer to the PDF document or feel free to contact us.

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The "pierce nut" is a nut that can create a hole and be crimped using the nut itself. No need for pre-drilling or alignment of pilot holes. It allows for the joining of dissimilar metals and the combination of resin and metal, which is not possible with welding. Additionally, since the joint condition can be visually confirmed, reliability is also improved. 【Features】 ■ No pilot hole required: No need for pre-drilling or alignment of pilot holes ■ Dissimilar metal joining: Allows for the joining of dissimilar metals and resin to metal, which is not possible with welding ■ No welding: Visual confirmation of fastening condition and omission of welding condition settings ■ The nut itself acts as a punch, creating a hole in the sheet material while simultaneously crimping the joint components securely *For more details, please refer to the PDF document or feel free to contact us.

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The "Paint Stripping Bolt" is a bolt that fastens while stripping the paint from the threaded part. There is no need for masking or re-tapping during painting. It fastens without seizing even when removing spatter from welded nuts or dealing with distortion, ensuring good contact with the female thread and significantly improving grounding performance. Additionally, its drill-like shape results in a low screwing torque, maintaining high productivity with the same process as standard screws. 【Features】 ■ Fastens while stripping paint from the threaded part ■ No need for masking or re-tapping during painting ■ Fastens without seizing when removing spatter from welded nuts or dealing with distortion ■ Ensures good contact with the female thread, greatly improving grounding performance ■ Drill-like shape results in low screwing torque ■ Maintains high productivity with the same process as standard screws *For more details, please refer to the PDF document or feel free to contact us.

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The "GRIPPLE Lockable Plus System" can be used as an easy and safe fall prevention measure. It consists of two components and can be secured in three steps, significantly reducing construction time. Designed with considerations for sway and vibration during disasters such as earthquakes, as well as for suspending heavy objects, it can be used in a wide range of fields, including public institutions (schools, stations, etc.), manufacturing facilities, and road signs. 【Features】 ■ Easy and safe fall prevention measures ■ Significant reduction in construction time ■ High safety due to double lock functionality ■ Designed for sway and vibration measures during disasters such as earthquakes and for suspending heavy objects ■ Usable in a wide range of fields *For more details, please refer to the PDF materials or feel free to contact us.

• Safety and consumables

The "Wedge Lock Bolt" features an asymmetric thread profile in the valley and utilizes a wedging surface to provide a powerful anti-loosening effect. It prevents loosening simply by tightening. It can be reused by reducing the adhesive application process. Additionally, it allows for anti-loosening in blind hole environments where nuts cannot be used. 【Features】 ■ Reduction of adhesive ■ High anti-loosening performance - Junker: Residual axial force of over 80% - NAS method: 17 minutes of durability (3000 cycles) ■ Usable in blind holes *For more details, please refer to the PDF document or feel free to contact us.

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Our company offers the "wedge nut," characterized by its asymmetric thread profile (wedge face) in the valley. The wedge face effectively disperses stress and provides a strong anti-loosening effect when a load is applied. We have a lineup that includes "iron wedge nuts," as well as special shapes such as "cap-type wedge nuts" and "clip wedge nuts." We also accept requests for materials and surface treatments beyond the basic specifications. Please feel free to consult with us. 【Product Lineup】 ■ Iron wedge nuts ■ Special shape products ■ Stainless steel wedge nuts ■ Square welded wedge nuts *For more details, please refer to the PDF document or feel free to contact us.

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The "wedge nut" features an asymmetric thread profile in the valley and utilizes a wedging surface to provide a strong anti-loosening effect. It achieves an easy-to-introduce price with a simple manufacturing process. Like regular nuts, it can be lightly inserted by hand without resistance until it seats. 【Features】 ■ High anti-loosening performance - NAS3350 vibration test: 17 minutes of durability *30,000 cycles - Junker vibration test: residual axial force of over 60% ■ Improved work efficiency ■ Easy-to-introduce price *For more details, please refer to the PDF document or feel free to contact us.

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This product is an insert nut that achieves high knurling peaks through a special rolling technology. By realizing high torque strength, it prevents the destruction of resin products due to rotation. It improves the "fastening strength" and "pull-out strength" that conventional insert nuts cannot withstand. 【Features】 ■ High pull-out strength: Approximately twice the strength compared to brass insert nuts ■ Lightweight: About one-third the weight compared to brass insert nuts ■ Environmentally friendly: Made of aluminum (A6061), compliant with RoHS lead regulations ■ Prevents rotation of the insert nut ■ Space-saving for resin products *For more details, please refer to the PDF document or feel free to contact us.

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This product is an insert nut that is easy to use and excels in various aspects such as holding power and cost balance. Made of aluminum, it complies with RoHS lead regulations. Compared to brass insert nuts, it boasts equivalent strength while weighing about one-third. We offer two types: "diagonal knurling" and "iris-type knurling," which can be used as inserts in various situations after molding. 【Features】 ■ High quality: Equivalent strength compared to brass insert nuts ■ Lightweight: Weighs about one-third compared to brass insert nuts ■ Environmentally friendly: Complies with RoHS lead regulations ■ Two types of knurling available: diagonal type and iris type *For more details, please refer to the PDF document or feel free to contact us.

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The "SPR" is a type of rivet that secures by penetrating the upper base material while embedding into the lower base material without penetrating it. It allows for the joining of dissimilar metals and the bonding of resin to metal, which is not possible with welding. The SPR, which can undergo non-destructive testing (dimensional inspection), is used in applications such as construction scaffolding as a countermeasure against welding defects. 【Features】 ■ No pre-drilling: No need for pre-drilling and omission of aligning pre-drilled holes ■ Dissimilar metal joining: Enables bonding of dissimilar metals and resin to metal, which is not possible with welding ■ No welding: Visual confirmation of fastening and omission of setting welding conditions ■ Shear strength equivalent to spot welding ■ Minimal variation and stable fastening *For more details, please refer to the PDF document or feel free to contact us.

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"Night Plus" is a reflective item that can reduce the dangers of working in the dark. It uses high-reflective materials, ensuring strong reflection for visibility. In addition to a lineup that includes "reflective armbands" and "reflective sashes," we offer various colors and shapes, including tape, sheets, and round types. 【Features】 ■ Reduces dangers of working in the dark ■ Strong reflection even in low light ■ Ensures visibility *For more details, please refer to the PDF document or feel free to contact us.

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"Insole Pro" is an insole designed for Japanese people, born from the medical field. It is possible to reduce fatigue starting from your feet. It can be used for issues such as knee pain, bunions, and metatarsalgia. Additionally, we offer a lineup that includes fatigue-reducing "insoles for rubber boots" with a three-dimensional shape, and "extra-thick insoles" with a removable three-layer structure. [For these types of issues] ■ Flatfoot prevention ■ Morton’s neuroma prevention ■ Plantar fasciitis prevention ■ Lower back pain prevention ■ Bowleg prevention *For more details, please refer to the PDF document or feel free to contact us.

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"Jitsu-Tam Alpha Plus" is an antibacterial spray that can prevent mold growth for 28 days. The main ingredient is soybean amino acids. It exhibits long-lasting antibacterial properties and effectiveness against various bacteria. Please use it for disinfection, deodorization, mold prevention, and antibacterial purposes. 【Features】 ■ Long-lasting antibacterial properties ■ Effectiveness against various bacteria ■ High safety ■ Strong deodorizing power ■ Shelf life of 5 years (unopened) *For more details, please refer to the PDF document or feel free to contact us.

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"Sound Guard W" is a new type of indoor soundproofing panel that combines two functions: sound absorption and sound insulation. It has excellent workability and can be used with cutters and adhesives. It does not produce fluff or dust and is highly durable. It can be used to reduce sound leakage from indoors to outdoors and to reduce noise from outdoors to indoors. 【Features】 ■ Excellent workability, can be used with cutters and adhesives ■ No fluff or dust generation, highly durable ■ Gray color that does not easily show dirt ■ Lightweight for easy transport and installation ■ Can be used to reduce sound leakage from indoors to outdoors and to reduce noise from outdoors to indoors *For more details, please refer to the PDF document or feel free to contact us.

• Soundproofing Sheet

"Air-conditioned clothing" is a product designed to keep you cool and comfortable by incorporating outside air into the clothing through two small fans installed around the waist area, allowing sweat to evaporate and cool the body through the heat of vaporization. In addition to the "titanium version," which cuts about 99% of ultraviolet rays and is safe for outdoor use, we also offer a "polyester version." 【Features】 ■ Titanium version ■ Aircon tech ■ Pocket for cooling pack ■ Reinforced shoulders and sleeves ■ Adjustable neck cord *For more details, please refer to the PDF document or feel free to contact us.

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"Indoor Sterilization" is an indoor environment purification agent that can disinfect, inhibit bacteria, and deodorize. Chlorine dioxide gas oxidizes and destroys the cell membranes of viruses, airborne bacteria, and surface bacteria to achieve disinfection. We offer two sizes: 120g and 500g. 【Features】 ■ Disinfection ■ Antibacterial ■ Deodorization ■ Excellent effectiveness and safety *For more details, please refer to the PDF document or feel free to contact us.

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This catalog introduces a wide range of products offered by Yahata Neji Co., Ltd. that meet the needs of manufacturing sites. Our company develops and proposes products based on direct delivery achievements for major manufacturing industries and user needs gathered from retail sales nationwide, aiming to pinpoint solutions for issues occurring on-site. [Contents] ■ Improvement of hygiene environments on-site ■ Establishment of comfortable working environments ■ Preparation for hidden dangers in work processes ■ Easy-to-install noise control measures *For more details, please refer to the PDF document or feel free to contact us.

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• Soundproofing Sheet
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Our "Bagging System" boasts high-quality control with a triple sensor. It can bag up to four parts with a standard machine. We cater to everything from "general products" to "customized products" sourced through our network. Additionally, direct printing on bags is possible, adding value with flexible printing options. 【Features】 ■ In-house developed product ■ Eliminates contamination and counting errors ■ Solves issues related to screws and assembly ■ High-quality control with a triple sensor ■ Direct printing on bags *For more details, please refer to the PDF document or feel free to contact us.

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The "trapezoidal screw" has a trapezoidal cross-section of the screw thread, making it easier to achieve axial precision during assembly. It is suitable for applications that bear thrust loads or high loads. The nut is made of the durable BC-6 material. Additionally, as an optional secondary processing for the screw shaft, we can accommodate complex machining and other shapes according to your requirements. Please feel free to consult us. 【Features】 ■ Trapezoidal cross-section of the screw thread ■ Made of durable BC-6 material *For more details, please refer to the PDF document or feel free to contact us.

• Safety and consumables

The "Wedge Lock Bolt" is a loosening prevention bolt that firmly locks in place by utilizing a special valley-shaped design that exhibits a wedging effect. By simply tightening it, it prevents loosening and reduces the need for adhesive application, while also allowing for repeated use. Additionally, it can prevent loosening in bag hole environments where nuts cannot be used. It has passed the Junker test and NAS vibration test. 【Features】 ■ Reduction of adhesive ■ Passed two types of vibration tests - Junker vibration test: Residual axial force of 85% or more - NAS3350 vibration test: 17 minutes (30,000 cycles) durability ■ Usable in bag holes *For more details, please refer to the PDF materials or feel free to contact us.

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The "YT Eye Bolt" is a product that has been involved with Yahata Screw from the manufacturing stage, achieving high quality and excellent cost performance. It features an accurate seating surface that meets JIS standards, precise perpendicularity of the screw, excellent surface flatness, and good surface finish. Great care has also been taken with its appearance, and it has been adopted by many major users. 【Features】 ■ Excellent surface flatness ■ Accurate perpendicularity between the ring and seating surface ■ A mark of quality, neck radius ■ Good surface finish *For more details, please refer to the PDF document or feel free to contact us.

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"YT Inatt" is a product that has been involved with Yawata Screw from the manufacturing stage, achieving high quality and excellent cost performance. This product has precise perpendicularity between the ring and the seating surface, and possesses excellent surface accuracy in accordance with JIS standards. Additionally, great care has been taken with its appearance, and it has been adopted by many major users. 【Features】 ■ Excellent surface accuracy of the seating surface ■ Accurate perpendicularity between the ring and the seating surface ■ Good surface finish *For more details, please refer to the PDF document or feel free to contact us.

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"JNCOAT (JN Coat)" is a high corrosion-resistant coating for zinc and zinc alloy plating that combines plating treatment with painting technology. It exhibits excellent rust prevention capabilities due to its barrier effect, high adhesion, and repair effect. Three color variations are available: clear, black, and silver. Additionally, with a film thickness of less than 3μm, it minimizes the occurrence of fitting issues, and when used as a topcoat for trivalent chromium conversion treatment, it achieves high corrosion resistance and stability. 【Features】 ■ High corrosion resistance ■ Three color options ■ Fit compatibility ■ Control of friction coefficient (friction coefficient: 0.28 to 0.37μ) *For more details, please refer to the PDF document or feel free to contact us.

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The "wedge nut" is a powerful anti-loosening nut that utilizes asymmetric threads. Its special valley shape exhibits a wedging effect, firmly locking the bolt. It demonstrates a high anti-loosening effect. It can be easily inserted by hand, and like a standard nut, it does not provide resistance until it is seated, ensuring excellent workability. Additionally, it is offered at an easy-to-introduce price due to its simple manufacturing process. 【Features】 ■ Strong locking effect ■ High workability ■ Passed NAS vibration tests ■ Cost advantages ■ NETIS registered product (Registration number: CB-170024-A) *For more details, please refer to the PDF document or feel free to contact us.

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SG plating is a molten zinc alloy plating system consisting of 5% aluminum and 1% magnesium. It is an alloy based on zinc, developed with technical support from Mitsui Mining & Smelting under the name "Super Galva," and has been enhanced with unique technology from Kowa Industrial for over 20 years. While zinc-based plating with about 5% aluminum has been commercialized in the steel sheet sector by blast furnace manufacturers and has established JIS standards, it is often technically challenging in the field of general molten zinc plating, and such plating is rarely performed. Furthermore, there are no other facilities boasting a production capacity of 3,000 tons per month with an 8-meter large kettle for alloy plating. SG plating has a proven track record in harsh environments prone to corrosion due to salt damage, such as coastal areas and heavy snowfall regions. Recently, in collaboration with Nippon Steel, SG plating has successfully developed high corrosion-resistant steel pipes. By combining Nippon Steel's "Strong Seam," known for its excellent workability, with SG plating, steel pipes with outstanding corrosion resistance and workability have been realized. **Features** - Exceptional corrosion resistance - Excellent as a base for painting - Powerful enough to handle large and bulk production - Environmentally friendly surface treatment For more details, please contact us or download the catalog.

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KSG plating is a zinc-tin alloy plating. We have been developing it independently for over 20 years, repeatedly improving it to complete the current method. In the field of electroplating, there are alloy platings that include tin, but the technology for molten tin alloys is exclusively handled by Kowa Industrial Co., Ltd. Additionally, by adopting a centrifugal method, we eliminate the occurrence of pooling, enabling a reduction in subsequent processes, thus achieving high quality at low cost. 【Features】 - Corrosion resistance is almost equivalent to that of molten zinc plating and is relatively strong in acidic environments. - Salt damage resistance is superior to that of molten zinc plating. For more details, please contact us or download the catalog.

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