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

Screw Product List

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Seat-mounted screw "WIS"

Seat-mounted screw "WIS"

Reduced labor hours for fastening 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). Furthermore, by reducing the diameter of the shaft, it is also possible to prevent interference with the internal thread. There is no risk of the washer falling off, significantly reducing the labor involved in tightening operations, 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 the labor involved in tightening operations ■ Automatic tightening becomes easier ■ Simplifies purchasing and inventory management, eliminating waste and inconsistency * For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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Tapping screws for high-tensile steel plates "GIGAFIT"

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 a material that has 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/

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CFRP tapping screw

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 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 pre-drilled CFRP or CFRTP ■ 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/

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Embedded screw 'Polis'

Embedded 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 screws, which have completed surface treatment, are manufactured by pressing them into a resin washer and inserting them with a screwing rotation. This eliminates the need for washer installation, improving work efficiency. It is also used to prevent scratches on the counterpart material and enhance corrosion resistance. 【Features】 ■ Eliminates the need for washer installation ■ Improves work efficiency ■ Prevents scratches on the counterpart 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/

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Tamper-proof screw

Tamper-proof screw

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

This 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 prevents over-tightening. ■ The screw head shears off at the end of fastening, allowing visual confirmation of completion. ■ Specifications can be set for easy removal with pliers or similar tools. ■ It prevents tampering or unauthorized loosening. *For data or material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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Resin tapping screw "Alu Armor PT"

Resin tapping screw "Alu Armor PT"

From soft resin to hard resin! High-strength aluminum fasteners clad in armor.

The "Alu-Arma PT" is a high-strength aluminum alloy tapping screw developed specifically for plastics, capable of tapping into hard resins like PPS and soft resins like PP. Not only does it contribute to weight reduction, but it is also effective in preventing the decrease in axial force after thermal cycle loads, due to aluminum's coefficient of linear expansion being closer to that of plastics than that of iron. 【Features】 ■ Safe material, lightweight, high strength ■ Capable of tapping into hard resin materials ■ Developed a specialized shape as an aluminum fastener for plastics ■ Prevents decrease in axial force due to thermal environmental changes ■ Not affected by magnetic fields *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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Resin tapping screw "Jushitite(R)"

Resin tapping screw "Jushitite(R)"

Tapping fasteners that provide a strong locking effect for use with all types of resin materials.

"Jushtite®" is a tapping screw for resin that exhibits high anti-loosening performance even in harsh environments such as thermal changes and vibrations. By placing flutes at positions that divide the circumference into three or four equal parts, almost perpendicular to the screw lead, the screw threads become serrated. After the screw is tightened, the resin springs back into these serrations, making it highly resistant to loosening. 【Features】 ■ Screw threads with flutes that are resistant to loosening ■ Low burden on resin due to flutes ■ Large screw pitch ■ Larger screw outer diameter ■ Trust and proven track record *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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Anti-loosening screw "Ebalock"

Anti-loosening screw "Ebalock"

Prevents loosening with a special screw thread shape! A locknut fastener suitable for use with lightweight alloys.

"Evablock" is a locking fastener that can be used for tapped holes as well. It has a special thread shape that bites into the female thread, increasing resistance and making it less likely to loosen. Without the need for design changes, it allows for an immediate switch from the current fastening method to one with a locking function. 【Features】 ■ Low screw-in torque ■ Locking function ■ Suitable for lightweight alloys that are prone to loosening ■ Cost reduction ■ Change only the bolt without design modifications *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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Thin plate tapping screw SPILEAD

Thin plate tapping screw SPILEAD

Improved productivity by accommodating variations in the pilot hole diameter of the counterpart material! This is a tapping screw for thin plates!

Introducing Yamashina Co., Ltd.'s newly released tapping screw for thin plates, 'SPILEAD'. It features a three-start thread, but the height of the thread peaks is higher only for part of the screw, which reduces the resistance during screwing. All three thread heights align directly below the head. This design achieves both low screwing torque and high breaking torque, allowing for stable fastening even with variations in pilot hole diameter and material thickness. (Patent pending) Additionally, it can be inserted stably into the pilot hole, preventing diagonal entry. The time required for screwing is also shorter than that of screws conforming to JIS standards, contributing to improved productivity. 【Features】 - Capable of accommodating variations in pilot hole diameter and material thickness - Addresses variations in fastening torque of electric screwdrivers - Inserts straight without diagonal entry - Short tapping screws for thin plates, such as M4×6 *For data and material requests, please feel free to contact us through the Yamashina website: http://www.yamashina.ne.jp/

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