ウィルコ List of Products and Services

A washer is incorporated into the screw. Since the washer does not come off the screw, it saves the effort of setting the washer and improves work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

• bolt

A washer is incorporated into the screw. Since the washer does not come off the screw, it saves the trouble of setting the washer and improves work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

• bolt

A washer is incorporated into the screw. Since the washer does not come off the screw, it eliminates the hassle of setting the washer, thereby improving work efficiency. It is also referred to as a Sems screw. It is compliant with EU-RoHS standards.

• bolt

This is a steel spacer treated with trivalent chromate. It is a pipe-shaped type that is thinner than CF-0000E.

• nut

This is a steel spacer treated with trivalent chromate. It is a hollow cylindrical type.

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This is a steel spacer treated with trivalent chromate. It has a cylindrical shape with male and female threads. The female thread side has a slit.

• nut

This is a steel spacer treated with trivalent chromate. It has a cylindrical shape with male and female threads.

• nut

This is a steel spacer treated with trivalent chromate. It has a cylindrical shape and is of the double-thread type. One side is slotted.

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This is a steel spacer treated with trivalent chromate. It has a cylindrical shape with double threaded ends.

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This is a steel spacer treated with trivalent chromate. It has a hexagonal column shape with male threads on both ends.

• nut

This is a steel spacer treated with trivalent chromate. It has a standard hexagonal column shape with male and female threads.

• nut

This is a steel spacer treated with trivalent chromate. It has a standard hexagonal column shape with male and female threads.

• nut

This is a steel spacer treated with trivalent chrome plating. It has a hexagonal column shape with a flat diameter of 6mm and features male threads on both ends.

• nut

This is a steel spacer treated with trivalent chromate. It has a hexagonal pillar shape with a flat diameter of 5mm and features male threads on both ends.

• nut

This is a steel spacer treated with trivalent chromate. It has a standard hexagonal column shape with male threads on both ends.

• nut

It is used to prevent loosening and falling off of nuts. After tightening the nut onto the bolt, a cotter pin is inserted into the pin hole. It is used in areas where vibration or temperature differences occur. It cannot be reused.

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This is a locking washer manufactured by Goshou Seisakusho Co., Ltd. It can accommodate high tightening axial forces (compatible with hex socket bolts of strength grade 12.9). When using multiple bolts for tightening, it can minimize the variation in torque coefficients for each bolt. There are two types: the SH type with a serrated tooth shape that grips the counterpart material, and the LH type with a disc spring shape. It is compliant with EU-RoHS standards.

• nut

This is a locking washer manufactured by Goshou Seisakusho Co., Ltd. It can accommodate high tightening axial forces (compatible with hexagon socket bolts of strength grade 12.9). When using multiple bolts for tightening, it can minimize the variation in torque coefficients for each bolt. There are two types: the SH type with a serrated tooth shape that grips the counterpart material, and the LH type with a disc spring shape.

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This is a washer manufactured by the Swedish company Nordlock using its unique technology, which provides a powerful anti-loosening effect. It combines two uniquely shaped washers to achieve the anti-loosening effect by utilizing tension rather than friction. It can be loosened using tools, and even when the washer is removed and reused, it still maintains its anti-loosening effect. It is used in various industries such as energy generation, transportation, offshore oil extraction, mining and quarrying, construction and bridge building, manufacturing and processing, shipbuilding, agriculture and forestry, large transport equipment, and military applications. It is compliant with EU-RoHS standards.

• nut

The teeth provided in the inner diameter engage with the counterpart component, preventing loosening and play after tightening. It is also used for securing terminals in electrical products and automotive parts. It is also referred to as a flower washer. It is compliant with EU-RoHS standards.

• nut

The teeth provided on the outer diameter engage with the counterpart component, preventing loosening and play after tightening. It is also used for securing terminals in electrical products and automotive parts. It is also referred to as a flower washer. It is compliant with EU-RoHS standards.

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This is a washer for pan head screws and round pan head screws. It is also called a conical washer. When using pan head screws, it is necessary to perform a "counterbore" processing on the counterpart material, but by using a rosette washer, pan head screws can be used without processing, thereby eliminating the processing step. It can also be used in combination with round pan head screws for decorative purposes. This is a rosette washer formed by pressing and shaping steel plate material. It is compliant with EU-RoHS standards.

• nut

This is a general-purpose (Type 2) product that meets JIS standards. It is said that the spring washer exerts a repulsive force that presses the screw head and the mating material together, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. This product is compliant with EU-RoHS regulations.

• nut

This is a general-purpose (No. 2) JIS standard product. It is said that the spring washer's tendency to expand creates a repulsive force that presses the screw head and the counterpart material together, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. It is compliant with EU-RoHS standards.

• nut

This is a general-purpose (Type 2) JIS standard product. It is said that the spring washer's rebound force, which tries to extend, presses the screw head and the counterpart material, making it difficult for the screw and nut to come loose. It is also referred to as a spring washer. It is compliant with EU-RoHS standards.

• nut

When the hole diameter of the material being fastened is larger than that of the screw, it can stabilize the screw head. By increasing the surface area of the screw head, it enhances the adhesion with the material. It is also referred to as a washer or flat washer. This product is compliant with EU-RoHS.

• nut

When the hole diameter of the material being fastened is larger than that of the screw, it can stabilize the screw head. By increasing the surface area of the screw head, the adhesion to the material can be enhanced. It is also referred to as a washer or flat washer. This product is compliant with EU-RoHS standards.

• nut

When the hole diameter of the material being tightened is larger than that of the screw, it can stabilize the screw head. By increasing the surface area of the screw head, the adhesion to the material can be enhanced. It is also referred to as a washer or flat washer. It is compliant with EU-RoHS standards.

• nut

This is a bag-shaped nut that covers one side of a JIS hex nut type 2 with a hemispherical shape. After assembly, it can cover the threaded part of the bolt, ensuring safety. It is also suitable for decorative purposes. It is compliant with EU-RoHS standards.

• nut

A nylon ring is embedded inside the nut. The nylon ring interferes with the threads, providing a locking effect after tightening. Since the locking mechanism is made of nylon, it is less likely to damage the bolt. It can be reused. It is compliant with EU-RoHS standards.

• nut

This is a nut with a flange that is wider than the hexagonal part and is integrally molded. Compared to a hex nut, it has a larger seating surface, which can be expected to provide a locking effect against loosening. The serration applied to the seating surface enhances the locking effect. It is compliant with EU RoHS standards.

• nut

This is a nut with a flange that is wider than the hexagonal part, molded as a single piece. Compared to a hex nut, it has a larger seating surface, which can be expected to provide a locking effect. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS accessory specification (low-height double-sided) in three varieties. It can be combined with JIS type 1 or type 2 hex nuts and used as a double nut. It has been treated with black trivalent chromate, which offers superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS accessory standard (low-height double-sided) in three variations. It can be combined with JIS type 1 or type 2 hex nuts and used as a double nut. It has been treated with trivalent chromate, providing superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS annex standard (low-height double-sided) in three variations. It can be combined with JIS type 1 or type 2 hex nuts and used as a double nut. Due to its glossy finish, it is suitable for decorative purposes. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS annex standard (double-sided). It has been treated with black trivalent chromate, which offers superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS annex standard (double-sided). It has undergone trivalent chromate treatment, which provides superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS annex specification (double-sided). It has a glossy finish, making it suitable for decorative purposes. It is compliant with EU-RoHS standards.

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This is a type of JIS annex standard, single-sided. It has been treated with black trivalent chromate, which provides superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a Type 1 JIS Annex Standard (single-sided) product. It has been treated with trivalent chromate, which provides superior corrosion resistance compared to nickel plating. It is compliant with EU-RoHS standards.

• nut

This is a type of JIS Annex Standard 1 (single-sided). It has a glossy finish, making it suitable for decorative purposes. It is compliant with EU-RoHS.

• nut

Compared to a cross slot, it has a better torque transmission efficiency, which can reduce the effort required during tightening. During tightening, the tip bites into the workpiece and secures it. Torx is a registered trademark of Acument Intellectual Properties, LLC. It is compliant with EU-RoHS standards.

• bolt

This is a unique standard set screw with a slotted design that adds smaller sizes to JIS standard products. It is used to secure by pressing the screw tip against the counterpart material. The pointed screw tip bites into the counterpart material for fixation. It is also referred to as a grub screw. It is compliant with EU-RoHS standards.

• bolt

This is a unique standard set screw with a slotted design that adds smaller sizes to JIS standard products. It is used when the screw tip is pressed against the counterpart material to secure it. Because the screw tip is flat, it is suitable for applications where you do not want to scratch the counterpart material. It is also referred to as a grub screw. It complies with EU-RoHS standards.

• bolt

This is a unique specification set screw with a slotted design that adds smaller sizes to JIS standard products. It is used when the screw tip is pressed against the counterpart material to secure it. Because the screw tip is flat, it is suitable for applications where you do not want to scratch the counterpart material. It is also called a grub screw. It complies with EU-RoHS standards.

• bolt