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Yamahiro Co., Ltd. Construction Screws General Catalog

Yamahiro Co., Ltd. Construction Screws General Catalog

JIS certified factory, ISO 9001 certified, Yamahiro's comprehensive catalog of construction screws.

This is the "Comprehensive Catalog of Construction Screws" from Yamahiro Co., Ltd., a manufacturer specializing in construction fasteners and related products. Since its establishment, Yamahiro has adhered to its policy of being "Yamahiro of Quality," continuously supplying high-precision products to the market while promptly introducing advanced equipment. This catalog features a wide range of products, including high-quality and high-performance JIS standard certified products from Yamahiro. [Featured Products] - JIS standard certified products for steel plates / light steel frame and interior construction - Jack point screws for steel plates - Non-head screws for square stud construction - Tornado point screws for thin steel plates, among others For more details, please contact us or download the catalog.

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Screw "Plaza High Low"

Screw "Plaza High Low"

Introducing screws with wave-shaped washers and dedicated gaskets! They have a beautiful finish and high water-stopping performance.

"Plaza Hi-Ro" is a screw that secures PVC/polycarbonate corrugated sheets (32 waves) to wooden substrates. It incorporates polycarbonate washers and gaskets shaped like the peaks of the corrugated sheets, resulting in a beautiful finish and high water resistance. The lineup includes clear-colored "Plaza W35" and brown-colored "GB Plaza W35" wave washers. 【Features】 ■ Screws for securing PVC/polycarbonate corrugated sheets (32 waves) to wooden substrates ■ Beautiful finish with high water resistance ■ Comes with wave washers and dedicated gaskets ■ Available in clear and brown wave washers *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Non-Head"

Screw "Non-Head"

A remarkable 0.9mm ultra-thin head! The thread shape can be selected from three types to match the material being used.

"Non-Head" is a screw characterized by its ultra-thin head with a thickness of 0.9mm. The screw thread shape can be selected from three types according to the material: jack point for C-shaped steel, tornado high-low for thin steel plates, and coarse thread for wooden substrates. Even when another attachment is fastened over the installed screw, there will be no irregularities, making it suitable for areas where irregularities are undesirable, such as the installation of water drainage in sheet metal work, roofing materials, and securing hanging materials in roofing work. 【Features】 ■ Ultra-thin head: an astonishing 0.9mm ■ No irregularities occur even when another attachment is fastened over the screw ■ The screw thread shape can be selected from three types according to the material ■ Used in areas where irregularities are undesirable, such as the installation of water drainage in sheet metal work and securing roofing materials and hanging materials in roofing work *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Tornado Point"

Screw "Tornado Point"

The pull-out holding force is 1.7 times that of the drill screw, and the shear strength is 3.8 times that of the aluminum rivet!

The "Tornado Point" features a sharp, precisely formed screw thread that works like a drill during installation. It allows for one-touch fastening of thin steel plates ranging from 0.4mm to 1.00mm without the need for a pilot hole, suitable for a total thickness of up to 1.4mm for two sheets of thin steel, and up to 0.8mm for two sheets of stainless steel. Since it screws in without cutting, there are no chips produced, and the burr effect ensures a strong bond between the two steel plates. 【Features】 - One-touch fastening of thin steel plates from 0.4mm to 1.00mm without a pilot hole - Applicable thickness up to a total of 1.4mm for two sheets of thin steel, and up to 0.8mm for two sheets of stainless steel - No chips produced as it screws in without cutting - Burr effect ensures a strong bond between two steel plates - Pull-out holding power is 1.7 times that of drill screws, and shear strength is 3.8 times that of aluminum rivets *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Course Thread"

Screw "Course Thread"

It eliminates the troubles of traditional nails and the hassle of using wood screws and tapping screws!

The "Course Thread" screw features a coarse thread that has been heat-treated, allowing it to be installed into wooden substrates without pre-drilling, without crushing the cross hole in boards and wood materials. It is used in various construction sites to attach gypsum boards, concrete panels, and wooden hardware to wooden substrates. This screw resolves traditional nail issues (such as board warping, floor creaking, and nail popping) and the hassle associated with using wood screws or tapping screws (which require pre-drilling). 【Features】 - The screw thread is a single-thread design with a sharp pointed tip. - It penetrates wood without the need for pre-drilling. - The thread pitch is approximately 3.2mm, which is coarse enough to prevent wood shavings from clogging the threads, allowing for easy driving. *For more details, please refer to the PDF document or feel free to contact us.*

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Screw "Drywall Screw"

Screw "Drywall Screw"

You can easily penetrate the thin steel plate of the substrate without pre-drilling using an electric screwdriver!

"Drywall screws" are tapping screws that can be installed with a single touch without the need for a pilot hole into drywall materials such as gypsum board, onto building interior base materials (0.8mm steel plate) or ceiling base materials (0.5mm steel plate). All the screw threads are double-threaded, and the tip is sharp, allowing for easy penetration of thin steel plates (up to 1mm thick) without a pilot hole using an electric screwdriver. Depending on the type and hardness of the base material (the material to which the screw is attached), different heads such as trumpet head, flexible head, and modoturas head are used. 【Features】 ■ Can be installed with a single touch without the need for a pilot hole ■ All screw threads are double-threaded with a sharp tip ■ Different heads (trumpet head, flexible head, modoturas head) are used based on the type and hardness of the base material *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Alcos"

Screw "Alcos"

Exhibits high retention power for ALC! Can be installed with one touch without drilling a pilot hole.

"Alcourse" is a specialized screw for fastening attachments to ALC. With a coarse thread pitch and a large screw outer diameter, it demonstrates high holding power in ALC. Lightweight items such as hardware and switch boxes can be installed on ALC with a single touch, without the need for pre-drilling. 【Features】 ■ Specialized screw for fastening attachments to ALC ■ Coarse thread pitch with a large screw outer diameter ■ High holding power in ALC ■ Can be installed with a single touch without pre-drilling *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Alstach"

Screw "Alstach"

Easily penetrate runners with the reinforced tip "Tornado Point" that achieves instant cutting!

"Alstach" is a specialized screw for fixing runners to ALC substrates. The high-low screw demonstrates excellent holding power against ALC. The sharp tornado-shaped tip of the screw easily penetrates the runner, enabling smooth construction. Additionally, the flat modotras head with a diameter of 10.5mm firmly holds the runner in place. 【Features】 ■ The high-low screw exhibits excellent holding power against ALC ■ The sharp tornado-shaped tip easily penetrates the runner ■ Enables smooth construction ■ The flat modotras head with a diameter of 10.5mm firmly holds the runner *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Flooring Screw"

Screw "Flooring Screw"

Adopting Parker finish (zinc phosphate coating) for surface treatment! Smooth sliding and easy screwing.

The "Flooring Screw" is a screw specifically designed for steel floor substrates. It is used to fasten various flooring materials such as floor construction, plywood, concrete panels, and dowel pins to steel floor substrates. The applicable board thickness is up to 1.2mm, and the packaging form is loose packing with shipments in large box units. 【Features】 ■ Surface treatment with Parker finish (zinc phosphate coating) ■ Smooth insertion with good sliding ■ Applicable board thickness: up to 1.2mm ■ Packaging form: loose packing ■ Shipment unit: large box unit *For more details, please refer to the PDF materials or feel free to contact us.

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Drill screw "Jack Point"

Drill screw "Jack Point"

We also offer special screw thread shapes! Drilling, tapping, and tightening can be done with one touch.

The "Jack Point" is commonly referred to as a drill screw, which has a drill tip at the end of the screw, allowing for drilling, tapping, and fastening in one touch on steel plates with a thickness of 1.6mm or more. The head shape can be varied according to the type and shape of the material being installed, including trumpet head, flexible head, modoturas head, pan head, flat head, hexagonal head, etc. It is used for attaching hardware, wood, etc., to base materials such as lightweight steel (C-shaped steel) with a thickness of 1.6mm or more in construction sheet metal exterior walls and roofing work without pre-drilling. 【Features】 ■ Drilling, tapping, and fastening can be done in one touch ■ Head shape: Depending on the type and shape of the material being installed, it can be varied among trumpet head, flexible head, modoturas head, pan head, flat head, hexagonal head, etc. ■ Screw thread shape: The screw thread is basically the same as the standard for tapping screws, but there are also special thread shapes depending on the application. *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Kaku Touch"

Screw "Kaku Touch"

One-touch fastening! It can accommodate various combinations of corner stud construction methods.

"Kaku Touch" is a screw that allows for one-touch fastening of square studs (corner studs) used in lightweight interior framing. It can accommodate various combinations of corner studs with other corner studs, as well as corner studs with wooden studs, in the corner stud method. As a high-low screw with alternating high and low threads, it provides holding power for both corner studs (0.5mm steel plate) and wooden studs. 【Features】 ■ One-touch fastening of square studs (corner studs) for lightweight interior framing ■ Compatible with various combinations in the corner stud method ■ Head shape: The head is designed with four blades in a trumpet shape, and the head flange is finished thinly, allowing for smooth cutting into the corner stud without significant indentation of the screw head ■ Thread shape: The high-low screw with alternating high and low threads provides holding power for both corner studs (0.5mm steel plate) and wooden studs *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Lunstouch"

Screw "Lunstouch"

Used for fastening runners and studs! A welding-free method screw that simplifies work.

"Run Touch" is a screw that allows for the one-touch installation of runners and studs in light steel frame interior construction. It is used for fastening runners and studs. Traditionally, this connection was made by welding, but this product simplifies that process. Additionally, the most commonly used head shape is the extra-small (φ6) flat head. When screwed in, the head surface is recessed to the fastening surface, preventing unevenness during subsequent board installation. 【Lineup】 ■ Run Touch Jack Point Truss ■ Run Touch Jack Point Flat ■ Run Touch Drywall Flat *For more details, please refer to the PDF document or feel free to contact us.

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Screw "Viscon"

Screw "Viscon"

Exhibits high pull-out holding power! Versatile concrete screws for various uses.

"Viscon" is a concrete screw that does not require a plug. It is used to fasten fixtures, piping, boards, wood, etc., to concrete-based substrates (such as concrete, blocks, bricks, hard mortar, etc.). In traditional construction, a pilot hole was drilled into the concrete, a plug was inserted, and then a tapping screw was used for fastening. However, this product can be directly screwed into the concrete substrate without the use of a plug. 【Features】 - Concrete screw that does not require a plug - Can be directly screwed into concrete substrates - Two rows of high-low screws with alternating high and low threads - Exhibits high pull-out resistance - Reliable fluorine silver finish with high rust resistance *For more details, please refer to the PDF document or feel free to contact us.

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Screw "High Robis"

Screw "High Robis"

The materials are two types: iron (aluminum killed steel 1018A) and stainless steel (SUS410)!

"Hirobis" is a screw used to attach brackets that support gutters essential for residential buildings and brackets that secure siding to wooden structures. It features a "head shape" that looks good after installation and is effective in holding the installed items, as well as a "thread shape" that allows for easy screwing in with light force, providing high holding power in wooden structures. We offer two types of materials: iron (aluminum-killed steel 1018A) and stainless steel (SUS410). [Surface Treatment] ■ Iron Products - Rust-resistant Luspard Silver ■ Stainless Steel Products - Super Passivate in stainless color *For more details, please refer to the PDF document or feel free to contact us.

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