ウィルコ Product Lineup

It is a screw without a head, consisting only of the threaded part. It has excellent chemical resistance and high strength. The threaded part meets JIS Class 2 ring gauge standards for high precision. It is also referred to as a long screw, fully threaded screw, or cut screw. It is compliant with EU RoHS standards.

• bolt

It is a shaft-shaped screw without a head, with threads cut at both ends. It has excellent chemical resistance and high strength. The threaded part meets JIS Class 2 ring gauge standards for high precision. It is also referred to as a stud bolt (implant bolt). It is compliant with EU-RoHS standards.

• bolt

The head shape is a trapezoidal shape with a rounded top. Compared to pan head screws, the head diameter is about 10-20% larger, allowing for a wider contact area, which helps prevent the seat from sinking. It prevents screws from falling off or getting lost. It is ideal for securing protective covers or inspection covers that are frequently installed and removed. It is compatible with CE marking for the products being installed. By narrowing the neck portion, the screw part catches on the cover when loosened, preventing it from falling.

• bolt

This is a representative head shape screw that is widely used in various fields. It prevents the screw from falling out or getting lost. It is ideal for securing protective covers and inspection covers that are frequently attached and removed. It is compatible with the CE marking requirements for the products being installed. By making the neck portion thinner, the screw part catches on the cover when loosened, preventing it from falling.

• bolt

This screw has a hexagonal (hexalobular) hole in the head, and a pin protrudes from the center of the hole. It is used as a tamper-proof screw because it cannot be removed without a special tool. It is compliant with EU-RoHS standards.

• bolt

It is a small screw with a flat top and a conical-shaped seating surface. It is used when you do not want the head of the screw to protrude. The material being fastened needs to be countersunk. It has a star-shaped screw hole with a pin in the center. It is tightened using a special tool. It is suitable for anti-tampering applications. It complies with EU-RoHS standards.

• bolt

It is a screw hole with a star shape and a pin in the center. It is tightened using a special tool. It is suitable for anti-tampering purposes. It is compliant with EU RoHS standards.

• bolt

These are small screws for precision instruments ranging from M1.4 to M2. They are typically tightened using a hexalobular wrench, commonly referred to as "Torx" or "hexalobe," which has a star-shaped screw hole. They are compliant with EU-RoHS standards.

• bolt

Generally, it is tightened using a hexalobular wrench, commonly referred to as "Torx" or "hexalobe," which has a star-shaped hexagonal screw hole. It is compliant with EU RoHS standards.

• bolt

Generally, it is tightened using a hexalobular wrench, commonly referred to as "Torx" or "hexalobe," for screws with a star-shaped hexagonal hole. It is compliant with EU-RoHS standards.

• bolt

Generally, it is tightened using a hexalobular wrench, commonly referred to as "Torx" or "hexalobe," with a star-shaped hexagonal screw hole. It is compliant with EU-RoHS standards.

• bolt

This is a screw with a tip shaped like a cutting edge (drill). It contributes to labor-saving by allowing drilling of a pilot hole, screw forming, and fastening to be done in one operation. The unique cutting edge provides stable cutting performance without variation even under low loads. It is suitable for fastening in construction, architecture, and housing in terms of workability, cost, and reliability. It complies with EU-RoHS standards.

• bolt

This is a tapping screw with a cutting edge (drill) shape at the tip. It contributes to labor-saving by allowing drilling of a pilot hole, screw forming, and fastening to be done in one operation. Thanks to its unique cutting edge, it provides stable cutting performance without variation even under low loads. The screw pitch is suitable for fastening in construction, architecture, and housing in terms of workability, cost, and reliability, similar to two types of tapping screws. It is compliant with EU RoHS standards.

• bolt

This is a tapping screw with a cutting edge (drill) shape at the tip. It contributes to labor-saving by allowing the processes of drilling a pilot hole, forming the screw, and fastening to be done in one operation. The unique cutting edge provides stable cutting performance without variation even under low loads. The screw pitch is suitable for fastening in construction, architecture, and housing in terms of workability, cost, and reliability, similar to two types of tapping screws. It is compliant with EU RoHS standards.

• bolt

This is a tapping screw with a cutting edge (drill) shape at the tip. It contributes to labor-saving by allowing drilling of a pilot hole, screw forming, and fastening to be done in one operation. The unique cutting edge provides stable cutting performance without variation, even under low loads. The screw pitch is suitable for fastening in construction, architecture, and housing in terms of workability, cost, and reliability, similar to two types of tapping screws. It is compliant with EU-RoHS standards.

• bolt

This is a tapping screw with a cutting edge (drill) shape at the tip. It contributes to labor-saving by allowing drilling of a pilot hole, screw forming, and fastening to be done in one operation. Thanks to its unique cutting edge, it offers stable cutting performance without variation even under low loads. The screw pitch is suitable for fastening in construction, architecture, and housing, with the same workability, cost, and reliability as two types of tapping screws. It is compliant with EU-RoHS standards.

• bolt

It is a screw with a flat top and a conical-shaped seating surface. It is used when you do not want the head of the screw to protrude. Wood screws do not have threads near the head, allowing for tight fastening of boards to posts or other wood materials, making them suitable for securing wood. It is necessary to chamfer the material being fastened. A pilot hole about 70% of the screw's diameter should be drilled, and then it can be tightened with a screwdriver. This is a wood screw made by Okitsu Spiral, certified by JIS. Unlike tapping screws, about two-thirds of its total length is threaded. Since the screw threads do not engage with the material sandwiched in between, the clamping force is increased, preventing backout and wobbling. It has a stronger holding power than tapping screws.

• bolt

This is a wood screw made by Okitsu Spiral, certified by JIS. Unlike tapping screws, about two-thirds of its total length is threaded. Since the screw threads do not engage with the material sandwiched in between, it increases the tightening force and prevents loosening and wobbling.

• bolt

These are screws for assembling aluminum sashes. A guide is provided at the tip of the screw to make it easier to locate the pilot holes in the aluminum sash. The screw pitch is the same as JIS Type 2 tapping screws. It is compliant with EU RoHS standards.

• bolt

These are screws for assembling aluminum sashes. A guide is provided at the tip of the screw to make it easier to locate the pilot holes in the aluminum sash. The screw pitch is the same as that of JIS Type 2 tapping screws. It is compliant with EU-RoHS standards.

• bolt

This is a screw that can be directly tightened into a pre-drilled hole that has not been processed with a male thread by plastically forming a male thread in the counterpart material itself. The screw pitch is finer than that of a type 1 tapping screw, with the tip of the screw cut by 1/4, and the cut part acts as a blade to carve the counterpart material and form the male thread. Usable counterpart materials include thin and thick plates (0.4 to 5 mm or less), non-metals, thermosetting resins, etc. It is compliant with EU-RoHS standards.

• bolt

This is a screw that can be directly tightened into a pre-drilled hole that has not been processed with a male thread by plastically forming a male thread in the counterpart material itself. The screw pitch is finer than that of a type 1 tapping screw, with the tip of the screw cut by 1/4, and the cut part acts as a blade to shave the counterpart material and form the male thread. Usable counterpart materials include thin and thick plates (0.4 to 5 mm or less), non-metals, thermosetting resins, etc. It is compliant with EU-RoHS standards.

• bolt

This is a screw that can be directly tightened into a pilot hole that has not been processed with internal threads by plastically forming internal threads in the counterpart material itself. The tip of the screw is pointed, serving as a guide for positioning the center of the pilot hole and improving the screw's grip. Since it tightens while forming internal threads through forming (plastic deformation), it is less likely to loosen compared to small screws. Usable counterpart materials include thin steel plates (0.4 to 1.2 mm), hardboard, wood, etc. It is compliant with EU RoHS standards.

• bolt

This is a screw that can be directly tightened into a pilot hole that has not been machined with a male thread by plastically forming a male thread in the counterpart material itself. The tip of the screw is pointed, serving as a guide for positioning the center of the pilot hole and improving the screw's grip. Since it forms the male thread while tightening through forming (plastic deformation), it is less likely to loosen compared to small screws. Usable counterpart materials include thin steel plates (0.4 to 1.2 mm), hardboard, wood, etc. It is compliant with EU-RoHS standards.

• bolt

This is a screw that can be directly tightened into a pilot hole that has not been processed with a male thread by plastically forming a male thread in the counterpart material itself. The tip of the screw is pointed, serving as a guide for positioning the center of the pilot hole and improving the grip of the screw. Since it tightens while forming the male thread through forming (plastic deformation), it is less likely to loosen compared to small screws. Usable counterpart materials include thin steel plates (0.4 to 1.2 mm), hardboard, wood, etc. It is compliant with EU RoHS standards.

• bolt

Specification: This is referred to as the Japan Camera Industry Association standard (JCIS10-70) for zero screws, micro screws, camera screws, etc. It is compliant with EU-RoHS.

• bolt

Specifications: Japanese Camera Industry Association Group Standard (JCIS10-70) No. 0 screws, also referred to as micro screws and camera screws. It is compliant with EU-RoHS.

• bolt

Specification: This product is designed according to the Japan Camera Industry Association standard (JCIS10-70) and has a lower screw head than the JIS standard cross-hole pan head screws. It is also referred to as number 0 screws, micro screws, or camera screws. It is compliant with EU-RoHS regulations.

• bolt

Specification: This product is smaller in screw head size compared to the cross-recessed pan head screws of the Japan Camera Industry Association standard (JCIS10-70) JIS standard. It is also referred to as No. 0 screws, micro screws, or camera screws. It complies with EU-RoHS regulations.

• bolt

Supports the realization of thin and lightweight ultra-thin head-shaped screw products. Compliant with EU RoHS standards.

• bolt

The head shape resembles the upper part of a sphere. Due to its larger outer diameter compared to other heads, it allows for a wider contact area on the seat surface. It is compliant with EU-RoHS standards.

• bolt

The head shape is a trapezoidal shape with a rounded top. Compared to pan head screws, the head diameter is about 10-20% larger, allowing for a wider contact area, which helps prevent the seat from sinking. It is compliant with EU-RoHS standards.

• bolt

It is a small screw with a flat top and a conical-shaped seat. It is used when you do not want the head of the screw to protrude. The material being fastened needs to be countersunk. It is compliant with EU RoHS standards.

• bolt

Nylok is a reliable locking technology that permanently adheres special nylon to the screw threads. The principle of Nylok's locking mechanism is that when the screw is tightened, the elastic rebound force of the adhered special nylon generates a strong frictional bonding force across the entire screw thread on the opposite side of the processed part, providing a permanent locking function against vibrations and shocks. It demonstrates exceptional locking effectiveness in areas with frequent use. This offers advantages not found in locking products that use adhesives or in lock nuts that deform the screw threads. Nylok is a registered trademark of Nylok LLC. It complies with EU-RoHS standards.

• bolt

It is a small screw with a flat top and a conical-shaped seat. It is used when you do not want the head of the screw to protrude. The material being fastened needs to be countersunk. It is compliant with EU-RoHS standards.

• bolt

This is a small screw with a PTFE washer set (TTS series) incorporated. It prevents the washer from falling off when the screw is removed, thereby reducing the workload during assembly. The washer has excellent heat resistance, chemical resistance, electrical properties (high-frequency characteristics), non-stick properties, and self-lubricating properties. It is compliant with EU-RoHS standards.

• bolt

This is a pan head screw incorporating a nylon 66 set washer (NNS series). It prevents the washer from falling off when the screw is removed, thereby reducing the workload during assembly. The washer has excellent abrasion resistance, oil resistance, and gas barrier properties. It is compliant with EU RoHS standards.

• bolt

This is a pan head screw incorporating a nylon 66 set washer (NNS series). It prevents the washer from falling off when the screw is removed, thereby reducing the workload during assembly. The washer is excellent in abrasion resistance, oil resistance, and gas barrier properties. 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 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 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.

• nut