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Screw×ヤマシナ - List of Manufacturers, Suppliers, Companies and Products

Screw Product List

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Tapping screws for thin steel plates "Shinka"

Eliminates the need for barrelling of thin plates. Tapping screws compatible with 0.3mm thin plates.

■ It is a screw that is difficult to spin even though it is a thin steel plate fastening. ■ It eliminates the need for nuts and bar processing, significantly contributing to the overall cost reduction in manufacturing. *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/*

  • bolt

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Delta PT tapping screw for resin

Excellent reusability!! Tapping screws that secure fastening with axial force, just like bolts.

■ This is a tapping screw for resin. Compared to those with serrated threads, it has a very high axial force and is a product developed with the same concept as bolts. ■ It is a screw that is resistant to loosening and has high pull-out strength. ■ It has excellent repeatability and does not damage the boss. ■ It possesses mechanical properties similar to those of bolts. ■ It eliminates the need for insert nuts, achieving significant cost reduction. *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt

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Thin plate tapping screw "Shinka"

Tapping fasteners for thin plates without barrelling!

"Shinka" is a screw designed for thin steel plates with a thickness of 0.3mm, specifically for punch holes without burring, allowing for tapping fastening. It has a fastening strength that is approximately twice as high as conventional products when the female thread breaks and spins, enabling secure fastening of thin steel plates with strong force, and it is resistant to loosening, requiring about twice the torque of conventional products to loosen. By allowing tapping fastening of thin steel plates using punch holes, it not only reduces the need for nuts but also eliminates the burring process typically required for fastening, thereby reducing parts costs and processing expenses. 【Features】 ■ Securely fastens thin steel plates with strong force ■ Resistant to loosening ■ Fastening time is half that of conventional products ■ Reduces parts costs and processing expenses ■ Achieves cost reduction in material storage and management *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • Screw

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Yamashina Co., Ltd. Product Catalog

Metal screws, resin screws, and more! A lineup of various products to solve challenges.

This catalog is the product catalog of Yamashina Co., Ltd., which mainly engages in the planning, manufacturing, and sales of metal products. It features high-quality screws, including the thin plate tapping screw "USCA," which excels in lightweight, compact design and meets a wide range of needs, as well as "ALtracs" and "DELTA PT." We offer a variety of metal screws, resin screws, and multifunctional components that solve issues such as loosening. [Contents] ■ Tapping screws for thin plates ■ Tapping screws for lightweight alloys ■ Tapping screws for thermoplastic resins ■ Rivet studs, etc. *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • Screw

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Light alloy tapping screws "ALtracs"

New generation tapping screws for lightweight alloys

"ALtracs" is an optimal tapping screw made of lightweight alloy for areas where there is concern about a decrease in fastening force (axial force) due to vibrations or temperature changes. Regular tapping screws are subjected to carburizing hardening, which raises concerns about brittle fracture; however, this product undergoes quenching hardening, eliminating worries about brittle fracture. Additionally, the screw's cross-section is a new circular shape, maximizing the contact area between the screw threads and the mating material, allowing for stable fastening over the long term. 【Features】 ■ No concerns about brittle fracture due to quenching hardening ■ Enables long-term stable fastening *For data or material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • Screw

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Seat-mounted screw "WIS"

Reduced labor hours for tightening operations! Successfully integrated a washer with functionality into a screw!

"WIS" is a screw with an integrated washer. For thin plates, a play of less than 0.5 pitch below the washer is possible (when a spring washer is included). Additionally, by reducing the diameter of the shaft, interference with the internal thread can also be prevented. There is no risk of the washer falling off, significantly reducing the labor involved in tightening, and automatic tightening becomes easier. 【Features】 ■ Eliminates the hassle and cost of combining screws and washers ■ No waste due to loss of washers ■ No risk of washer falling off, significantly reducing labor in tightening ■ Easier automatic tightening ■ Simplifies purchasing and inventory management, eliminating waste and inconsistencies *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt
  • Other machine elements

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Tapping screws for high-tensile steel plates "GIGAFIT"

Tapping screws that can be used on high-tensile steel plates! Tapping screws that reduce the risk of brittle fracture.

"GIGAFIT" is a tapping screw that can be used with ultra-high tensile materials of 1180 MPa. It is made from materials that have a low risk of brittle fracture, featuring a hard surface and a soft core. It meets the needs for applications aimed at strength and weight reduction, such as bonding ultra-high tensile materials with other metals. [Features] ■ Can be used for tapping in ultra-high tensile materials ■ Low risk of brittle fracture ■ Soft core setting ■ Suitable for thread-forming fastener shapes *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt
  • Other machine elements

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Screw machining technology: head shape

We also accommodate special processing such as tamper-proofing! Various drive systems and head shapes can be combined.

At Yamashina, we manufacture various head shapes, including recesses, through cold processing. We can combine various drive systems such as cross slots, Torx, and hex sockets with head shapes like pan heads and flange shapes, allowing for a wide range of processing options. Additionally, special processing such as tamper-proof features is also possible. 【Available Combinations】 <Drive Systems> ■ Cross slot ■ Torx ■ Hex socket, etc. <Head Shapes> ■ Pan head ■ Flange shape, etc. *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt
  • Other machine elements
  • Processing Contract

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CFRP tapping screw

Prevents interlayer delamination! Tapping fasteners capable of tapping connections for CFRP and CFRTP.

The "tapping screws for CFRP" are screws that can be used to tap and fasten carbon fiber reinforced plastics (CFRP) and carbon fiber reinforced thermoplastics (CFRTP), which are said to have a specific gravity of one-fourth that of iron and a specific strength ten times that of iron. This product prevents interlayer delamination of CFRP materials, providing excellent screw-in capability and high break torque. 【Features】 ■ Directly screws into CFRP or CFRTP with pre-drilled holes ■ Achieves fastening without interlayer delamination ■ Allows for setting a generous fastening torque *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt
  • fastener

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Seat-mounted screw "Polis"

Omitting the installation of washers! Improved workability with screws that come with built-in resin washers.

"POLIS" is a screw that comes with a pre-installed resin washer. The screw is manufactured by pressing it into a resin washer after the surface treatment is completed, and then inserting it by applying a screwing rotation. This eliminates the need for washer installation, improving work efficiency. It is also used to prevent scratches on the mating material and enhance corrosion resistance. 【Features】 - Eliminates the need for washer installation - Improves work efficiency - Prevents scratches on the mating material - Enhances corrosion resistance - Reduces overall costs *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt
  • Other machine elements

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Yamashina Company Profile

Introduction to Yamashina, a company engaged in the manufacturing, processing, and sales of screws for domestic automobile manufacturers! We celebrated our 100th anniversary in 2017.

Yamashina primarily engages in the manufacturing, processing, and sales of screws for domestic automobile manufacturers. Due to the high quality demanded by automotive-related customers, we not only ensure reliable quality but also meet the specified delivery dates. Furthermore, we are developing value-added products that reduce our customers' processing steps and lower costs. On-site, we are working to improve production efficiency while collecting data through IoT technology, constantly generating ideas from the field to enhance work efficiency. In 2017, we celebrated our "100th anniversary," launched the CFRP insert nut "Alu-Arma Nut," and introduced IoT at our headquarters factory, followed by the release of the high-tensile steel tapping screw "GIGAFIT" in 2018. Looking ahead, we believe that as smart technology continues to advance, we will increasingly focus on and deepen our engagement in the automotive and low-voltage markets, which are expected to become key players in next-generation growth industries such as robotics and service robots. Additionally, based on our extensive know-how and track record, we will implement fastener engineering and develop differentiated high-value-added products.

  • bolt
  • nut

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High-strength aluminum screw "Yamashina"

High-strength aluminum screws suitable for use in automobiles. Also adopted for drones!!

■ It is a high-strength aluminum screw with an extremely low risk of stress corrosion cracking. ■ We benchmarked aluminum bolts used in European automobiles and carefully selected the materials. ■ Adopted by a Japanese drone manufacturer. Its safety and reliability have been evaluated. ■ It offers many advantages such as weight reduction, electromagnetic wave countermeasures, and prevention of galvanic corrosion. * For data or material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt

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Productivity increased by 30% with Shinka tapping screws for thin plates.

Using Shinka can reduce the required time for thin plate fastening by 30%.

■Shinka is a tapping screw developed by Yamashina for thin plates. It can fasten thin steel plates of 0.3t or more without spinning, even without using a burring or nut. ■By eliminating burring and nuts, we can reduce processing costs, component costs, and waste disposal costs due to fastening failures caused by spinning. As a result, it is used by many customers, with an annual shipment record of over 100 million units to manufacturers of home appliances and industrial equipment. ■Recently, attention has also been drawn to the fastening speed. It has been found that the cycle time from gripping the screw to completing the tightening can be shortened by 30% compared to conventional screws for thin plates when using Shinka. ■By using Shinka, it is possible to reduce manufacturing costs associated with fastening by approximately 30%. ■We have uploaded a comparison video of the screwing time on YouTube. Please take a look from the link below. https://youtu.be/YupmIbisBp8 ■We also have videos on the Yamashina website. Below, other detailed information is also posted. https://www.kk-yamashina.co.jp/product/thinca.html

  • bolt

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Tamper-proof screw

This is a special screw that allows for consistent fastening, as the screw head will strip at the optimal torque when tightened.

It is a special fastening component that causes the screw head to shear off at the targeted torque when tightened. Since it is fundamentally a screw, it is held in place by axial force. ■ Even with variations in tightening methods, consistent fastening can be achieved. ■ It can prevent over-tightening. ■ The screw head shears off at the end of fastening, allowing for visual confirmation of completion. ■ Specifications can be set to allow for easy removal with pliers or similar tools. ■ It can prevent tampering or unauthorized loosening. *For data or material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt

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Metal screws "Shinka"

Non-jamming thin plate screws. Tapping screws that are resistant to loosening and easy to set torque.

The metal screw "Shinka" can be fastened into punch holes without barrelling in thin steel plates with a thickness of 0.3mm. It has a fastening strength that is about twice as high as conventional products when the female thread breaks and spins, allowing for secure fastening of thin steel plates with strong force. As a result, it is also resistant to loosening, and the torque required to loosen it is about twice that of conventional products. The time required for tightening is also half that of conventional products, enabling quick fastening. 【Features】 ○ No spinning or loosening even with thin steel plates ○ No barrelling required ○ Reduced work time ○ Lower material and storage management costs *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

  • bolt

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