Custom-made special screws
Complete custom-made system! We support various shapes. |
We manufacture custom-made screws according to the specifications of the customer.
We support a wide variety of processes such as cutting processes and forging.
Consult us for anything such as screw parts which are not sold in the market, long bolts, bolts with female screws, etc.
Head shape processing |
Head hole processing |
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 Oval shape |
 Knurled |
 Hexagonal |
 Hexalobular |
Eccentric processing |
Head coating |
Polishing |
Caulking |
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Welding |
Through hole processing |
Tap processing |
Spring post shape |
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Applicable materials
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| Carbon steel | This is a generally used material. SS400, S45C, etc. |
| Alloy steel | This is a material often used for high-strength screws. SCM415, etc. |
| Stainless steel | This is a material with excellent corrosion resistance. Comes in austenitic, martensite and ferrite types. |
| Copper, copper alloy |
This material has excellent thermal conductivity, and extensibility. |
| Aluminum alloy | Lighter than iron, and optimal for weight reduction. |
| Titanium, titanium alloy | This material is light-weight and string. It is often used for airplanes, etc. |
| Nickel alloy | This is a material with excellent thermal resistance and chemical resistance. |
| POM (resin) | This is a resin material with large rigidity and tenaciousness. |
| PPS (resin) | This is a material with excellent thermal resistance and high rigidity. |
| PTFE (resin) | This is a material with excellent chemical resistance and other excellent characteristics. |
| PEEK (resin) | This is a material with excellent thermal resistance etc |
Applicable heat treatment, surface treatment (coating)
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Heat treatment
This is a process which changes the characteristics of the metal by heating the metal and changing the cooling conditions.
| Hardening/ tempering | Improvement of toughness and wear resistance of steel |
| Solution treatment | Improvement of corrosion resistance, thermal resistance, toughness and ductility of stainless steel |
Surface treatment
Thermal treatment that does not change inside of the metal material but only changes the characteristics of the surface of the metal
| Carbonizing | Wear resistance improves on the surface of the steel keeping the toughness inside. |
| Nitriding | The surface hardness of the steel is improved. Thermal changes are reduced. |
| High-frequency induction hardening. | The surface hardness of the steel is improved. It is possible to adjust the deepness of hardening. |
Surface treatment (coating)
This is treatment to form film or a surface reforming layer on the metal surface to add new characteristics or functions.
| Zinc plating | Improvement of corrosion resistance, environment conscious products |
| Nickel plating | Improvement of corrosion resistance and wear resistance |
| Chrome plating | Improvement of corrosion resistance and wear resistance |
| Electroless nickel | Improvement of corrosion resistance and wear resistance |
| Blackening | Corrosion prevention and coloring |
| Stainless blackening | Improvement of design |
| Passivating process | Corrosion prevention of stainless steel |
| Buffing, barrel, electrolytic polishing | Mirror polishing |
| Anodization | Coloring aluminum and titanium, improvement of corrosion prevention |
| Hard anodized aluminum | Improvement of wear resistance of aluminum |
| Molybdenum disulfide | For reduction of coefficient of friction, improvement of sliding characteristics, prevention of stains |
| Head coating | Coating of screw heads. Consult us for color matching |
| Fluorine coating | For prevention of galling and seizing up |
| Coating for locking | Screw locking. We process according to the conditions of use |
| Seal coating | For preventing fluid leakage |
| Coating for preventing stains | Prevention of stains by coating |
