We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Built-in Screw.
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Built-in Screw Product List and Ranking from 15 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Aug 06, 2025~Sep 02, 2025
This ranking is based on the number of page views on our site.

Built-in Screw Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Aug 06, 2025~Sep 02, 2025
This ranking is based on the number of page views on our site.

  1. 松平精工 Osaka//Ferrous/Non-ferrous metals 本社
  2. ヤマシナ Kyoto//Manufacturing and processing contract
  3. 望月螺旋 Shizuoka//Machine elements and parts
  4. 4 八幡ねじ Aichi//Resin/Plastic
  5. 5 コヤウチファスナー Saitama//Manufacturing and processing contract

Built-in Screw Product ranking

Last Updated: Aggregation Period:Aug 06, 2025~Sep 02, 2025
This ranking is based on the number of page views on our site.

  1. Seat insert screw 松平精工 本社
  2. Seat-mounted screw "Polis" ヤマシナ
  3. Thin plate mounting screw "Cero Gap" 望月螺旋
  4. Seat-mounted screw "WIS" ヤマシナ
  5. 4 Sems screw with washer incorporated ツルガ

Built-in Screw Product List

16~21 item / All 21 items

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Nylon rubber washer assembly

Successfully reduced costs and improved work efficiency! Achieved washer assembly with machinery!

Our company manufactures assembled products made of non-ferrous materials, such as nylon washers and rubber washers. We can procure washers in-house and manufacture them in specified sizes. If assembly by machine is difficult, we also offer manual assembly. Additionally, you can provide our manufactured screws and washers for assembly and sorting, which we can then deliver to you. 【Features】 ■ Realization of washer assembly by machine ■ Capability to procure and manufacture washers in specified sizes in-house ■ Manual assembly available if machine assembly is difficult ■ Assembled screws are sorted using image sorting machines and delivered to customers *For more details, please refer to the PDF document or feel free to contact us.

  • Other machine elements

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Washer-integrated screw (Sems screw)

High-quality washer-integrated screws

The "washer-integrated screw (sems screw)" is popular because it prevents forgetting to insert the washer and the washer from falling off by having the washer included from the start, thereby improving work efficiency. To ensure high quality, our company not only improves technology but also installs checkers in all processes, such as forging and screw rolling, to detect any defects. Additionally, we conduct 100% inspection in screw manufacturing. In addition to inspections performed by on-site workers at each stage, inspections are also carried out by dedicated inspectors, enabling the shipment of high-quality products. *Please feel free to contact us for more details.*

  • Other machine elements

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Thin plate mounting screw "Cero Gap"

Fully seated! No gaps! Stainless steel washer-integrated screws for thin plates.

The "Cero Gap" is a washer-integrated screw that can tighten without any gaps, even with thin sheet materials. Due to cost reduction and weight reduction, thin sheet materials are in demand, but conventional washer-integrated screws create gaps and cannot securely tighten thin sheet materials. This product has a relief groove under the head (below the washer), allowing for complete seating. 【Features】 ■ Torque strength: M4 ... 3.63Nm * The strength is based on our torsion test results. JIS standard M4 ... 2.70N.m or more. * For more details, please refer to the PDF document or feel free to contact us.

  • bolt

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Seat bolt assembly screw (semis)

Automatically incorporating the seat cushion significantly improves work efficiency!

We handle "washer-integrated screws (Semus)" that incorporate flat washers or spring washers under the heads of small screws. Our automatic assembly machine is dedicated to long lengths, allowing for a head shape of M4 and M5, with lengths ranging from 54 to 160 mm. We have a proven track record of manufacturing in various materials, including iron and stainless steel. 【Features】 ■ Head shapes of M4 and M5 ■ Lengths can be processed from 54 to 160 mm ■ Proven manufacturing in various materials, including iron and stainless steel ■ Washers do not come off after integration due to rolling ■ Significantly improves work efficiency *For more details, please download the PDF or feel free to contact us.

  • Other consumables

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Custom-made products available, including embedded screws and over 1,000 other types!

90% are custom-made products. We offer support for small lot production, material selection, cost reduction, strength enhancement, and suggestions for processing steps! Samples available. Prototyping available.

【Features】 ■ Upset ■ Embedded ■ Rolling ■ Sems Due to the long L dimension, automatic assembly is not possible, so each piece is manually assembled and rolled.

  • nut

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